SXCN10 CWTO 211330
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:43 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:40:51   16    5.471     361.8     1.7    -5.7     2.0
DS 1  10:54:46   17    4.568     364.8     2.2    -1.9     1.7
DS 2  11:08:42   17    3.901     365.9     1.4     0.7     1.0
DS 2  11:28:52   19    3.206     366.2     0.6     1.4     0.1
DS 3  11:42:47   19    2.852     366.6     0.6     1.4     0.7
DS 3  11:56:40   20    2.569     365.8     1.7     2.1     0.8
DS 3  12:10:31   21    2.339     367.0     0.5     1.7     0.2
DS 4  12:30:47   22    2.071     365.3     1.6     1.6     0.5
DS 4  12:44:43   23    1.922     363.6     1.6     1.7     0.8
DS 4  12:58:37   24    1.797     362.2     0.4     1.7     0.5

   DAILY MEANS   20    3.070     364.9             0.5
   STANDARD DEVIATION              1.8             2.4
                             10 / 10


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:43 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:58:54   17    4.350     338.7     4.4     7.9     1.2
ZS 0  11:12:50   18    3.736     351.3     3.1     2.9     0.9
ZS 0  11:33:00   19    3.093     357.3     1.8     0.5     0.5
ZS 0  11:46:56   20    2.761     359.3     1.9    -0.7     0.4
ZS 0  12:00:48   20    2.496     359.6     2.0    -0.5     0.4
ZS 0  12:14:38   21    2.278     362.4     3.7    -0.5     0.2
ZS 1  12:35:00   23    2.023     367.6     1.6    -0.7     0.4
ZS 1  12:48:54   23    1.882     369.8     5.0     0.0     0.7
ZS 1  13:02:49   24    1.762     371.4     4.2    -0.7     0.9
ZS 1  13:14:12   24    1.677     372.2     2.5    -1.0     0.6

   DAILY MEANS   21    2.606     361.0             0.7
   STANDARD DEVIATION             10.4             2.8
                             10 / 10


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-21
     LOCAL SOLAR NOON = 17:19:43 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:55:58    16     87.793      10.950    0.0     326.0   4.0      80
 10:14:59    16     84.803       8.160    0.1     361.0   5.0      84
 10:35:06    16     81.541       5.938    0.1     369.0   5.0      84
 10:48:58    17     79.244       4.911    0.2     375.0   4.0      84
 11:02:54    17     76.899       4.156    0.3     385.0   3.0      85
 11:16:49    18     74.521       3.590    0.4     374.0   2.0      85
 11:36:59    19     71.027       2.990    0.5     366.0   1.0      85
 11:50:55    20     68.583       2.679    0.7     369.0   1.0      85
 12:04:46    21     66.133       2.429    0.9     362.0   1.0      86
 12:18:37    22     63.663       2.223    1.1     369.0   1.0      89
 12:38:58    23     60.014       1.980    1.5     363.0   1.0      91
 12:52:53    24     57.510       1.846    1.5     351.0   1.0      74
 13:06:47    24     55.003       1.731    1.8     390.0   2.0      86

DAILY MEANS  19                  4.122            366.2            84
STANDARD DEVIATION                                 15.8             4
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170621 13:30
SXCN10 CWTO 211430
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:44 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:40:51   16    5.471     361.8     1.7    -5.7     2.0
DS 1  10:54:46   17    4.568     364.8     2.2    -1.9     1.7
DS 2  11:08:42   17    3.901     365.9     1.4     0.7     1.0
DS 2  11:28:52   19    3.206     366.2     0.6     1.4     0.1
DS 3  11:42:47   19    2.852     366.6     0.6     1.4     0.7
DS 3  11:56:40   20    2.569     365.8     1.7     2.1     0.8
DS 3  12:10:31   21    2.339     367.0     0.5     1.7     0.2
DS 4  12:30:47   22    2.071     365.3     1.6     1.6     0.5
DS 4  12:44:43   23    1.922     363.6     1.6     1.7     0.8
DS 4  12:58:37   24    1.797     362.2     0.4     1.7     0.5
DS 4  13:30:21   24    1.572     360.6     2.4     2.8     0.7
DS 5  13:44:18   25    1.495     361.6     1.7     2.6     0.7
DS 4  14:12:09   26    1.370     361.5     1.7     2.7     0.5

   DAILY MEANS   21    2.703     364.1             1.0
   STANDARD DEVIATION              2.3             2.3
                             13 / 13


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:44 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:58:54   17    4.350     338.7     4.4     7.9     1.2
ZS 0  11:12:50   18    3.736     351.3     3.1     2.9     0.9
ZS 0  11:33:00   19    3.093     357.3     1.8     0.5     0.5
ZS 0  11:46:56   20    2.761     359.3     1.9    -0.7     0.4
ZS 0  12:00:48   20    2.496     359.6     2.0    -0.5     0.4
ZS 0  12:14:38   21    2.278     362.4     3.7    -0.5     0.2
ZS 1  12:35:00   23    2.023     367.6     1.6    -0.7     0.4
ZS 1  12:48:54   23    1.882     369.8     5.0     0.0     0.7
ZS 1  13:02:49   24    1.762     371.4     4.2    -0.7     0.9
ZS 1  13:14:12   24    1.677     372.2     2.5    -1.0     0.6
ZS 1  13:34:32   25    1.548     367.1     2.1     1.2     0.7
ZS 1  13:48:29   25    1.474     367.9     2.4     0.7     0.5
ZS 2  14:02:23   26    1.410     371.9     2.8     1.4     2.1
ZS 1  14:16:20   27    1.353     370.2     2.5     0.7     0.7

   DAILY MEANS   22    2.275     363.3             0.8
   STANDARD DEVIATION              9.5             2.3
                             14 / 14


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-21
     LOCAL SOLAR NOON = 17:19:44 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:55:59    16     87.793      10.950    0.0     326.0   4.0      80
 10:15:00    16     84.803       8.160    0.1     361.0   5.0      84
 10:35:07    16     81.541       5.938    0.1     369.0   5.0      84
 10:48:59    17     79.244       4.911    0.2     375.0   4.0      84
 11:02:55    17     76.899       4.156    0.3     385.0   3.0      85
 11:16:49    18     74.521       3.590    0.4     374.0   2.0      85
 11:36:59    19     71.027       2.990    0.5     366.0   1.0      85
 11:50:55    20     68.583       2.679    0.7     369.0   1.0      85
 12:04:46    21     66.133       2.429    0.9     362.0   1.0      86
 12:18:37    22     63.663       2.223    1.1     369.0   1.0      89
 12:38:58    23     60.014       1.980    1.5     363.0   1.0      91
 12:52:54    24     57.510       1.846    1.5     351.0   1.0      74
 13:06:48    24     55.003       1.731    1.8     390.0   2.0      86
 13:38:29    25     49.287       1.526    3.1     361.0   1.0      98
 14:06:24    26     44.307       1.393    2.1     357.0   1.0      52
 14:20:18    27     41.854       1.339    3.8     421.0   4.0      96

DAILY MEANS  21                  3.615            368.7            84
STANDARD DEVIATION                                 20.0            10
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170621 14:28
SXCN10 CWTO 211530
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:44 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:40:51   16    5.471     361.8     1.7    -5.7     2.0
DS 1  10:54:46   17    4.568     364.8     2.2    -1.9     1.7
DS 2  11:08:42   17    3.901     365.9     1.4     0.7     1.0
DS 2  11:28:52   19    3.206     366.2     0.6     1.4     0.1
DS 3  11:42:47   19    2.852     366.6     0.6     1.4     0.7
DS 3  11:56:40   20    2.569     365.8     1.7     2.1     0.8
DS 3  12:10:31   21    2.339     367.0     0.5     1.7     0.2
DS 4  12:30:47   22    2.071     365.3     1.6     1.6     0.5
DS 4  12:44:43   23    1.922     363.6     1.6     1.7     0.8
DS 4  12:58:37   24    1.797     362.2     0.4     1.7     0.5
DS 4  13:30:21   24    1.572     360.6     2.4     2.8     0.7
DS 5  13:44:18   25    1.495     361.6     1.7     2.6     0.7
DS 4  14:12:09   26    1.370     361.5     1.7     2.7     0.5
DS 5  14:32:30   27    1.297     363.0     1.5     1.9     0.8
DS 5  14:51:24   29    1.242     361.2     2.3     2.1     0.5
DS 5  15:05:12   29    1.208     360.6     0.3     1.6     0.3

   DAILY MEANS   22    2.430     363.6             1.2
   STANDARD DEVIATION              2.3             2.1
                             16 / 16


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:44 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:58:54   17    4.350     338.7     4.4     7.9     1.2
ZS 0  11:12:50   18    3.736     351.3     3.1     2.9     0.9
ZS 0  11:33:00   19    3.093     357.3     1.8     0.5     0.5
ZS 0  11:46:56   20    2.761     359.3     1.9    -0.7     0.4
ZS 0  12:00:48   20    2.496     359.6     2.0    -0.5     0.4
ZS 0  12:14:38   21    2.278     362.4     3.7    -0.5     0.2
ZS 1  12:35:00   23    2.023     367.6     1.6    -0.7     0.4
ZS 1  12:48:54   23    1.882     369.8     5.0     0.0     0.7
ZS 1  13:02:49   24    1.762     371.4     4.2    -0.7     0.9
ZS 1  13:14:12   24    1.677     372.2     2.5    -1.0     0.6
ZS 1  13:34:32   25    1.548     367.1     2.1     1.2     0.7
ZS 1  13:48:29   25    1.474     367.9     2.4     0.7     0.5
ZS 2  14:02:23   26    1.410     371.9     2.8     1.4     2.1
ZS 1  14:16:20   27    1.353     370.2     2.5     0.7     0.7
ZS 1  14:36:41   28    1.284     371.5     2.1     0.4     0.6
ZS 2  14:55:30   29    1.231     369.7     3.8     1.5     1.2
ZS 1  15:09:23   30    1.198     371.2     2.3     0.6     1.0
ZS 1  15:20:46   30    1.174     370.1     1.8     0.6     0.6

   DAILY MEANS   24    2.041     365.0             0.8
   STANDARD DEVIATION              8.9             2.0
                             18 / 18


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-21
     LOCAL SOLAR NOON = 17:19:44 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:55:59    16     87.793      10.950    0.0     326.0   4.0      80
 10:15:00    16     84.803       8.160    0.1     361.0   5.0      84
 10:35:07    16     81.541       5.938    0.1     369.0   5.0      84
 10:48:59    17     79.244       4.911    0.2     375.0   4.0      84
 11:02:55    17     76.899       4.156    0.3     385.0   3.0      85
 11:16:49    18     74.521       3.590    0.4     374.0   2.0      85
 11:36:59    19     71.027       2.990    0.5     366.0   1.0      85
 11:50:55    20     68.583       2.679    0.7     369.0   1.0      85
 12:04:46    21     66.133       2.429    0.9     362.0   1.0      86
 12:18:37    22     63.663       2.223    1.1     369.0   1.0      89
 12:38:58    23     60.014       1.980    1.5     363.0   1.0      91
 12:52:54    24     57.510       1.846    1.5     351.0   1.0      74
 13:06:48    24     55.003       1.731    1.8     390.0   2.0      86
 13:38:29    25     49.287       1.526    3.1     361.0   1.0      98
 14:06:24    26     44.307       1.393    2.1     357.0   1.0      52
 14:20:18    27     41.854       1.339    3.8     421.0   4.0      96
 14:45:40    28     37.479       1.258    5.1     360.0   1.0      96
 14:59:31    29     35.167       1.221    5.6     358.0   1.0      99

DAILY MEANS  22                  3.351            367.6            86
STANDARD DEVIATION                                 19.0            11
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170621 15:28
SXCN10 CWTO 211630
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:45 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:40:51   16    5.471     361.8     1.7    -5.7     2.0
DS 1  10:54:46   17    4.568     364.8     2.2    -1.9     1.7
DS 2  11:08:42   17    3.901     365.9     1.4     0.7     1.0
DS 2  11:28:52   19    3.206     366.2     0.6     1.4     0.1
DS 3  11:42:47   19    2.852     366.6     0.6     1.4     0.7
DS 3  11:56:40   20    2.569     365.8     1.7     2.1     0.8
DS 3  12:10:31   21    2.339     367.0     0.5     1.7     0.2
DS 4  12:30:47   22    2.071     365.3     1.6     1.6     0.5
DS 4  12:44:43   23    1.922     363.6     1.6     1.7     0.8
DS 4  12:58:37   24    1.797     362.2     0.4     1.7     0.5
DS 4  13:30:21   24    1.572     360.6     2.4     2.8     0.7
DS 5  13:44:18   25    1.495     361.6     1.7     2.6     0.7
DS 4  14:12:09   26    1.370     361.5     1.7     2.7     0.5
DS 5  14:32:30   27    1.297     363.0     1.5     1.9     0.8
DS 5  14:51:24   29    1.242     361.2     2.3     2.1     0.5
DS 5  15:05:12   29    1.208     360.6     0.3     1.6     0.3
DS 5  15:36:59   30    1.145     362.2     3.5     2.1     0.8

   DAILY MEANS   23    2.354     363.5             1.2
   STANDARD DEVIATION              2.3             2.1
                             17 / 17


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:45 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:58:54   17    4.350     338.7     4.4     7.9     1.2
ZS 0  11:12:50   18    3.736     351.3     3.1     2.9     0.9
ZS 0  11:33:00   19    3.093     357.3     1.8     0.5     0.5
ZS 0  11:46:56   20    2.761     359.3     1.9    -0.7     0.4
ZS 0  12:00:48   20    2.496     359.6     2.0    -0.5     0.4
ZS 0  12:14:38   21    2.278     362.4     3.7    -0.5     0.2
ZS 1  12:35:00   23    2.023     367.6     1.6    -0.7     0.4
ZS 1  12:48:54   23    1.882     369.8     5.0     0.0     0.7
ZS 1  13:02:49   24    1.762     371.4     4.2    -0.7     0.9
ZS 1  13:14:12   24    1.677     372.2     2.5    -1.0     0.6
ZS 1  13:34:32   25    1.548     367.1     2.1     1.2     0.7
ZS 1  13:48:29   25    1.474     367.9     2.4     0.7     0.5
ZS 2  14:02:23   26    1.410     371.9     2.8     1.4     2.1
ZS 1  14:16:20   27    1.353     370.2     2.5     0.7     0.7
ZS 1  14:36:41   28    1.284     371.5     2.1     0.4     0.6
ZS 2  14:55:30   29    1.231     369.7     3.8     1.5     1.2
ZS 1  15:09:23   30    1.198     371.2     2.3     0.6     1.0
ZS 1  15:20:46   30    1.174     370.1     1.8     0.6     0.6
ZS 2  16:09:03   30    1.102     365.8     3.2     1.6     1.1

   DAILY MEANS   24    1.991     365.0             0.8
   STANDARD DEVIATION              8.6             2.0
                             19 / 19


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-21
     LOCAL SOLAR NOON = 17:19:45 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:56:00    16     87.793      10.950    0.0     326.0   4.0      80
 10:15:01    16     84.803       8.160    0.1     361.0   5.0      84
 10:35:08    16     81.541       5.938    0.1     369.0   5.0      84
 10:49:00    17     79.244       4.911    0.2     375.0   4.0      84
 11:02:56    17     76.899       4.156    0.3     385.0   3.0      85
 11:16:49    18     74.521       3.590    0.4     374.0   2.0      85
 11:36:59    19     71.027       2.990    0.5     366.0   1.0      85
 11:50:55    20     68.583       2.679    0.7     369.0   1.0      85
 12:04:46    21     66.133       2.429    0.9     362.0   1.0      86
 12:18:37    22     63.663       2.223    1.1     369.0   1.0      89
 12:38:58    23     60.014       1.980    1.5     363.0   1.0      91
 12:52:55    24     57.510       1.846    1.5     351.0   1.0      74
 13:06:49    24     55.003       1.731    1.8     390.0   2.0      86
 13:38:29    25     49.287       1.526    3.1     361.0   1.0      98
 14:06:25    26     44.307       1.393    2.1     357.0   1.0      52
 14:20:18    27     41.854       1.339    3.8     421.0   4.0      96
 14:45:40    28     37.479       1.258    5.1     360.0   1.0      96
 14:59:32    29     35.167       1.221    5.6     358.0   1.0      99
 15:40:29    30     28.782       1.140    6.8     355.0   1.0     100
 15:49:51    30     27.455       1.126    6.9     353.0   1.0      98
 15:59:11    31     26.210       1.114    3.0     358.0   1.0      42
 16:13:05    30     24.520       1.098    3.3     360.0   1.0      44

DAILY MEANS  23                  2.945            365.6            83
STANDARD DEVIATION                                 17.7            17
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170621 16:27
SXCN10 CWTO 211730
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:45 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:40:51   16    5.471     361.8     1.7    -5.7     2.0
DS 1  10:54:46   17    4.568     364.8     2.2    -1.9     1.7
DS 2  11:08:42   17    3.901     365.9     1.4     0.7     1.0
DS 2  11:28:52   19    3.206     366.2     0.6     1.4     0.1
DS 3  11:42:47   19    2.852     366.6     0.6     1.4     0.7
DS 3  11:56:40   20    2.569     365.8     1.7     2.1     0.8
DS 3  12:10:31   21    2.339     367.0     0.5     1.7     0.2
DS 4  12:30:47   22    2.071     365.3     1.6     1.6     0.5
DS 4  12:44:43   23    1.922     363.6     1.6     1.7     0.8
DS 4  12:58:37   24    1.797     362.2     0.4     1.7     0.5
DS 4  13:30:21   24    1.572     360.6     2.4     2.8     0.7
DS 5  13:44:18   25    1.495     361.6     1.7     2.6     0.7
DS 4  14:12:09   26    1.370     361.5     1.7     2.7     0.5
DS 5  14:32:30   27    1.297     363.0     1.5     1.9     0.8
DS 5  14:51:24   29    1.242     361.2     2.3     2.1     0.5
DS 5  15:05:12   29    1.208     360.6     0.3     1.6     0.3
DS 5  15:36:59   30    1.145     362.2     3.5     2.1     0.8
DS 5  16:34:30   31    1.081     358.1     1.3     1.7     0.8

   DAILY MEANS   23    2.284     363.2             1.2
   STANDARD DEVIATION              2.5             2.0
                             18 / 18


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:45 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:58:54   17    4.350     338.7     4.4     7.9     1.2
ZS 0  11:12:50   18    3.736     351.3     3.1     2.9     0.9
ZS 0  11:33:00   19    3.093     357.3     1.8     0.5     0.5
ZS 0  11:46:56   20    2.761     359.3     1.9    -0.7     0.4
ZS 0  12:00:48   20    2.496     359.6     2.0    -0.5     0.4
ZS 0  12:14:38   21    2.278     362.4     3.7    -0.5     0.2
ZS 1  12:35:00   23    2.023     367.6     1.6    -0.7     0.4
ZS 1  12:48:54   23    1.882     369.8     5.0     0.0     0.7
ZS 1  13:02:49   24    1.762     371.4     4.2    -0.7     0.9
ZS 1  13:14:12   24    1.677     372.2     2.5    -1.0     0.6
ZS 1  13:34:32   25    1.548     367.1     2.1     1.2     0.7
ZS 1  13:48:29   25    1.474     367.9     2.4     0.7     0.5
ZS 2  14:02:23   26    1.410     371.9     2.8     1.4     2.1
ZS 1  14:16:20   27    1.353     370.2     2.5     0.7     0.7
ZS 1  14:36:41   28    1.284     371.5     2.1     0.4     0.6
ZS 2  14:55:30   29    1.231     369.7     3.8     1.5     1.2
ZS 1  15:09:23   30    1.198     371.2     2.3     0.6     1.0
ZS 1  15:20:46   30    1.174     370.1     1.8     0.6     0.6
ZS 2  16:09:03   30    1.102     365.8     3.2     1.6     1.1
ZS 1  16:47:57   31    1.073     369.0     1.1     0.7     0.6
ZS 2  17:01:48   32    1.068     362.4     5.0     3.1     1.3
ZS 1  17:22:13   31    1.066     361.2     3.7     4.5     1.2

   DAILY MEANS   25    1.865     364.9             1.1
   STANDARD DEVIATION              8.1             2.0
                             22 / 22


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-21
     LOCAL SOLAR NOON = 17:19:45 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:56:00    16     87.793      10.950    0.0     326.0   4.0      80
 10:15:01    16     84.803       8.160    0.1     361.0   5.0      84
 10:35:08    16     81.541       5.938    0.1     369.0   5.0      84
 10:49:00    17     79.244       4.911    0.2     375.0   4.0      84
 11:02:56    17     76.899       4.156    0.3     385.0   3.0      85
 11:16:49    18     74.521       3.590    0.4     374.0   2.0      85
 11:36:59    19     71.027       2.990    0.5     366.0   1.0      85
 11:50:55    20     68.583       2.679    0.7     369.0   1.0      85
 12:04:46    21     66.133       2.429    0.9     362.0   1.0      86
 12:18:37    22     63.663       2.223    1.1     369.0   1.0      89
 12:38:58    23     60.014       1.980    1.5     363.0   1.0      91
 12:52:55    24     57.510       1.846    1.5     351.0   1.0      74
 13:06:49    24     55.003       1.731    1.8     390.0   2.0      86
 13:38:29    25     49.287       1.526    3.1     361.0   1.0      98
 14:06:25    26     44.307       1.393    2.1     357.0   1.0      52
 14:20:18    27     41.854       1.339    3.8     421.0   4.0      96
 14:45:40    28     37.479       1.258    5.1     360.0   1.0      96
 14:59:32    29     35.167       1.221    5.6     358.0   1.0      99
 15:40:29    30     28.782       1.140    6.8     355.0   1.0     100
 15:49:51    30     27.455       1.126    6.9     353.0   1.0      98
 15:59:11    31     26.210       1.114    3.0     358.0   1.0      42
 16:13:05    30     24.520       1.098    3.3     360.0   1.0      44
 16:38:00    31     22.077       1.079    6.9     270.0   6.0      56
 16:51:59    31     21.127       1.072    8.1     349.0   1.0     100
 17:26:11    31     20.384       1.066    3.1     362.0   1.0      40

DAILY MEANS  24                  2.721            361.0            81
STANDARD DEVIATION                                 25.4            19
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170621 17:29
SXCN10 CWTO 211830
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:46 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:40:51   16    5.471     361.8     1.7    -5.7     2.0
DS 1  10:54:46   17    4.568     364.8     2.2    -1.9     1.7
DS 2  11:08:42   17    3.901     365.9     1.4     0.7     1.0
DS 2  11:28:52   19    3.206     366.2     0.6     1.4     0.1
DS 3  11:42:47   19    2.852     366.6     0.6     1.4     0.7
DS 3  11:56:40   20    2.569     365.8     1.7     2.1     0.8
DS 3  12:10:31   21    2.339     367.0     0.5     1.7     0.2
DS 4  12:30:47   22    2.071     365.3     1.6     1.6     0.5
DS 4  12:44:43   23    1.922     363.6     1.6     1.7     0.8
DS 4  12:58:37   24    1.797     362.2     0.4     1.7     0.5
DS 4  13:30:21   24    1.572     360.6     2.4     2.8     0.7
DS 5  13:44:18   25    1.495     361.6     1.7     2.6     0.7
DS 4  14:12:09   26    1.370     361.5     1.7     2.7     0.5
DS 5  14:32:30   27    1.297     363.0     1.5     1.9     0.8
DS 5  14:51:24   29    1.242     361.2     2.3     2.1     0.5
DS 5  15:05:12   29    1.208     360.6     0.3     1.6     0.3
DS 5  15:36:59   30    1.145     362.2     3.5     2.1     0.8
DS 5  16:34:30   31    1.081     358.1     1.3     1.7     0.8
DS 5  17:45:54   31    1.071     356.6     1.2     2.2     0.4
DS 5  17:55:05   31    1.075     356.7     2.6     2.1     1.0
DS 0  18:10:47   32    1.085     376.5     2.9     6.0     0.6
DS 5  18:24:43   32    1.097     360.4     1.7     2.8     0.7

   DAILY MEANS   25    2.065     363.1             1.6
   STANDARD DEVIATION              4.3             2.1
                             22 / 22


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:46 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:58:54   17    4.350     338.7     4.4     7.9     1.2
ZS 0  11:12:50   18    3.736     351.3     3.1     2.9     0.9
ZS 0  11:33:00   19    3.093     357.3     1.8     0.5     0.5
ZS 0  11:46:56   20    2.761     359.3     1.9    -0.7     0.4
ZS 0  12:00:48   20    2.496     359.6     2.0    -0.5     0.4
ZS 0  12:14:38   21    2.278     362.4     3.7    -0.5     0.2
ZS 1  12:35:00   23    2.023     367.6     1.6    -0.7     0.4
ZS 1  12:48:54   23    1.882     369.8     5.0     0.0     0.7
ZS 1  13:02:49   24    1.762     371.4     4.2    -0.7     0.9
ZS 1  13:14:12   24    1.677     372.2     2.5    -1.0     0.6
ZS 1  13:34:32   25    1.548     367.1     2.1     1.2     0.7
ZS 1  13:48:29   25    1.474     367.9     2.4     0.7     0.5
ZS 2  14:02:23   26    1.410     371.9     2.8     1.4     2.1
ZS 1  14:16:20   27    1.353     370.2     2.5     0.7     0.7
ZS 1  14:36:41   28    1.284     371.5     2.1     0.4     0.6
ZS 2  14:55:30   29    1.231     369.7     3.8     1.5     1.2
ZS 1  15:09:23   30    1.198     371.2     2.3     0.6     1.0
ZS 1  15:20:46   30    1.174     370.1     1.8     0.6     0.6
ZS 2  16:09:03   30    1.102     365.8     3.2     1.6     1.1
ZS 1  16:47:57   31    1.073     369.0     1.1     0.7     0.6
ZS 2  17:01:48   32    1.068     362.4     5.0     3.1     1.3
ZS 1  17:22:13   31    1.066     361.2     3.7     4.5     1.2
ZS 2  17:36:04   31    1.068     366.3     3.0     2.4     0.7
ZS 2  18:14:53   32    1.088     373.0     2.8     1.4     1.0

   DAILY MEANS   26    1.800     365.3             1.2
   STANDARD DEVIATION              7.9             2.0
                             24 / 24


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-21
     LOCAL SOLAR NOON = 17:19:46 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:56:01    16     87.793      10.950    0.0     326.0   4.0      80
 10:15:02    16     84.803       8.160    0.1     361.0   5.0      84
 10:35:09    16     81.541       5.938    0.1     369.0   5.0      84
 10:49:01    17     79.244       4.911    0.2     375.0   4.0      84
 11:02:57    17     76.899       4.156    0.3     385.0   3.0      85
 11:16:49    18     74.521       3.590    0.4     374.0   2.0      85
 11:36:59    19     71.027       2.990    0.5     366.0   1.0      85
 11:50:55    20     68.583       2.679    0.7     369.0   1.0      85
 12:04:46    21     66.133       2.429    0.9     362.0   1.0      86
 12:18:37    22     63.663       2.223    1.1     369.0   1.0      89
 12:38:58    23     60.014       1.980    1.5     363.0   1.0      91
 12:52:56    24     57.510       1.846    1.5     351.0   1.0      74
 13:06:50    24     55.003       1.731    1.8     390.0   2.0      86
 13:38:29    25     49.287       1.526    3.1     361.0   1.0      98
 14:06:26    26     44.307       1.393    2.1     357.0   1.0      52
 14:20:18    27     41.854       1.339    3.8     421.0   4.0      96
 14:45:40    28     37.479       1.258    5.1     360.0   1.0      96
 14:59:33    29     35.167       1.221    5.6     358.0   1.0      99
 15:40:30    30     28.782       1.140    6.8     355.0   1.0     100
 15:49:51    30     27.455       1.126    6.9     353.0   1.0      98
 15:59:11    31     26.210       1.114    3.0     358.0   1.0      42
 16:13:06    30     24.520       1.098    3.3     360.0   1.0      44
 16:38:01    31     22.077       1.079    6.9     270.0   6.0      56
 16:52:00    31     21.127       1.072    8.1     349.0   1.0     100
 17:26:11    31     20.384       1.066    3.1     362.0   1.0      40
 17:40:03    31     20.766       1.069    7.5     361.0   4.0      99
 17:58:31    32     21.849       1.077    7.0     372.0   4.0      99
 18:18:55    32     23.694       1.091    3.3     352.0   1.0      43

DAILY MEANS  25                  2.545            361.0            81
STANDARD DEVIATION                                 24.1            20
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170621 18:26
SXCN10 CWTO 211931
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:46 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:40:51   16    5.471     361.8     1.7    -5.7     2.0
DS 1  10:54:46   17    4.568     364.8     2.2    -1.9     1.7
DS 2  11:08:42   17    3.901     365.9     1.4     0.7     1.0
DS 2  11:28:52   19    3.206     366.2     0.6     1.4     0.1
DS 3  11:42:47   19    2.852     366.6     0.6     1.4     0.7
DS 3  11:56:40   20    2.569     365.8     1.7     2.1     0.8
DS 3  12:10:31   21    2.339     367.0     0.5     1.7     0.2
DS 4  12:30:47   22    2.071     365.3     1.6     1.6     0.5
DS 4  12:44:43   23    1.922     363.6     1.6     1.7     0.8
DS 4  12:58:37   24    1.797     362.2     0.4     1.7     0.5
DS 4  13:30:21   24    1.572     360.6     2.4     2.8     0.7
DS 5  13:44:18   25    1.495     361.6     1.7     2.6     0.7
DS 4  14:12:09   26    1.370     361.5     1.7     2.7     0.5
DS 5  14:32:30   27    1.297     363.0     1.5     1.9     0.8
DS 5  14:51:24   29    1.242     361.2     2.3     2.1     0.5
DS 5  15:05:12   29    1.208     360.6     0.3     1.6     0.3
DS 5  15:36:59   30    1.145     362.2     3.5     2.1     0.8
DS 5  16:34:30   31    1.081     358.1     1.3     1.7     0.8
DS 5  17:45:54   31    1.071     356.6     1.2     2.2     0.4
DS 5  17:55:05   31    1.075     356.7     2.6     2.1     1.0
DS 0  18:10:47   32    1.085     376.5     2.9     6.0     0.6
DS 5  18:24:43   32    1.097     360.4     1.7     2.8     0.7
DS 5  18:33:54   32    1.106     357.8     2.1     3.0     0.4
DS 5  18:43:04   32    1.117     357.0     1.9     2.8     0.5
DS 5  18:58:40   33    1.139     354.2     2.2     2.1     0.5
DS 5  19:07:52   33    1.154     356.4     2.7     1.8     0.4
DS 5  19:21:40   33    1.180     352.8     2.5     2.2     0.5

   DAILY MEANS   26    1.894     361.7             1.7
   STANDARD DEVIATION              4.9             1.9
                             27 / 27


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:46 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:58:54   17    4.350     338.7     4.4     7.9     1.2
ZS 0  11:12:50   18    3.736     351.3     3.1     2.9     0.9
ZS 0  11:33:00   19    3.093     357.3     1.8     0.5     0.5
ZS 0  11:46:56   20    2.761     359.3     1.9    -0.7     0.4
ZS 0  12:00:48   20    2.496     359.6     2.0    -0.5     0.4
ZS 0  12:14:38   21    2.278     362.4     3.7    -0.5     0.2
ZS 1  12:35:00   23    2.023     367.6     1.6    -0.7     0.4
ZS 1  12:48:54   23    1.882     369.8     5.0     0.0     0.7
ZS 1  13:02:49   24    1.762     371.4     4.2    -0.7     0.9
ZS 1  13:14:12   24    1.677     372.2     2.5    -1.0     0.6
ZS 1  13:34:32   25    1.548     367.1     2.1     1.2     0.7
ZS 1  13:48:29   25    1.474     367.9     2.4     0.7     0.5
ZS 2  14:02:23   26    1.410     371.9     2.8     1.4     2.1
ZS 1  14:16:20   27    1.353     370.2     2.5     0.7     0.7
ZS 1  14:36:41   28    1.284     371.5     2.1     0.4     0.6
ZS 2  14:55:30   29    1.231     369.7     3.8     1.5     1.2
ZS 1  15:09:23   30    1.198     371.2     2.3     0.6     1.0
ZS 1  15:20:46   30    1.174     370.1     1.8     0.6     0.6
ZS 2  16:09:03   30    1.102     365.8     3.2     1.6     1.1
ZS 1  16:47:57   31    1.073     369.0     1.1     0.7     0.6
ZS 2  17:01:48   32    1.068     362.4     5.0     3.1     1.3
ZS 1  17:22:13   31    1.066     361.2     3.7     4.5     1.2
ZS 2  17:36:04   31    1.068     366.3     3.0     2.4     0.7
ZS 2  18:14:53   32    1.088     373.0     2.8     1.4     1.0
ZS 2  19:11:57   33    1.162     360.3     2.8     2.3     0.7
ZS 1  19:25:50   34    1.189     359.7     2.2     0.7     0.5

   DAILY MEANS   26    1.752     364.9             1.2
   STANDARD DEVIATION              7.7             1.9
                             26 / 26


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-21
     LOCAL SOLAR NOON = 17:19:46 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:56:01    16     87.793      10.950    0.0     326.0   4.0      80
 10:15:02    16     84.803       8.160    0.1     361.0   5.0      84
 10:35:09    16     81.541       5.938    0.1     369.0   5.0      84
 10:49:01    17     79.244       4.911    0.2     375.0   4.0      84
 11:02:57    17     76.899       4.156    0.3     385.0   3.0      85
 11:16:49    18     74.521       3.590    0.4     374.0   2.0      85
 11:36:59    19     71.027       2.990    0.5     366.0   1.0      85
 11:50:55    20     68.583       2.679    0.7     369.0   1.0      85
 12:04:46    21     66.133       2.429    0.9     362.0   1.0      86
 12:18:37    22     63.663       2.223    1.1     369.0   1.0      89
 12:38:58    23     60.014       1.980    1.5     363.0   1.0      91
 12:52:56    24     57.510       1.846    1.5     351.0   1.0      74
 13:06:50    24     55.003       1.731    1.8     390.0   2.0      86
 13:38:29    25     49.287       1.526    3.1     361.0   1.0      98
 14:06:26    26     44.307       1.393    2.1     357.0   1.0      52
 14:20:18    27     41.854       1.339    3.8     421.0   4.0      96
 14:45:40    28     37.479       1.258    5.1     360.0   1.0      96
 14:59:33    29     35.167       1.221    5.6     358.0   1.0      99
 15:40:30    30     28.782       1.140    6.8     355.0   1.0     100
 15:49:51    30     27.455       1.126    6.9     353.0   1.0      98
 15:59:11    31     26.210       1.114    3.0     358.0   1.0      42
 16:13:06    30     24.520       1.098    3.3     360.0   1.0      44
 16:38:01    31     22.077       1.079    6.9     270.0   6.0      56
 16:52:00    31     21.127       1.072    8.1     349.0   1.0     100
 17:26:11    31     20.384       1.066    3.1     362.0   1.0      40
 17:40:03    31     20.766       1.069    7.5     361.0   4.0      99
 17:58:31    32     21.849       1.077    7.0     372.0   4.0      99
 18:18:55    32     23.694       1.091    3.3     352.0   1.0      43
 18:28:10    32     24.727       1.100    7.2     354.0   1.0      96
 19:02:07    33     29.237       1.145    6.4     348.0   1.0      92
 19:16:00    33     31.320       1.169    6.0     351.0   1.0      93

DAILY MEANS  26                  2.409            360.1            82
STANDARD DEVIATION                                 23.1            19
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170621 19:28
SXCN10 CWTO 212030
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:47 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:40:51   16    5.471     361.8     1.7    -5.7     2.0
DS 1  10:54:46   17    4.568     364.8     2.2    -1.9     1.7
DS 2  11:08:42   17    3.901     365.9     1.4     0.7     1.0
DS 2  11:28:52   19    3.206     366.2     0.6     1.4     0.1
DS 3  11:42:47   19    2.852     366.6     0.6     1.4     0.7
DS 3  11:56:40   20    2.569     365.8     1.7     2.1     0.8
DS 3  12:10:31   21    2.339     367.0     0.5     1.7     0.2
DS 4  12:30:47   22    2.071     365.3     1.6     1.6     0.5
DS 4  12:44:43   23    1.922     363.6     1.6     1.7     0.8
DS 4  12:58:37   24    1.797     362.2     0.4     1.7     0.5
DS 4  13:30:21   24    1.572     360.6     2.4     2.8     0.7
DS 5  13:44:18   25    1.495     361.6     1.7     2.6     0.7
DS 4  14:12:09   26    1.370     361.5     1.7     2.7     0.5
DS 5  14:32:30   27    1.297     363.0     1.5     1.9     0.8
DS 5  14:51:24   29    1.242     361.2     2.3     2.1     0.5
DS 5  15:05:12   29    1.208     360.6     0.3     1.6     0.3
DS 5  15:36:59   30    1.145     362.2     3.5     2.1     0.8
DS 5  16:34:30   31    1.081     358.1     1.3     1.7     0.8
DS 5  17:45:54   31    1.071     356.6     1.2     2.2     0.4
DS 5  17:55:05   31    1.075     356.7     2.6     2.1     1.0
DS 0  18:10:47   32    1.085     376.5     2.9     6.0     0.6
DS 5  18:24:43   32    1.097     360.4     1.7     2.8     0.7
DS 5  18:33:54   32    1.106     357.8     2.1     3.0     0.4
DS 5  18:43:04   32    1.117     357.0     1.9     2.8     0.5
DS 5  18:58:40   33    1.139     354.2     2.2     2.1     0.5
DS 5  19:07:52   33    1.154     356.4     2.7     1.8     0.4
DS 5  19:21:40   33    1.180     352.8     2.5     2.2     0.5
DS 5  20:26:56   35    1.368     351.3     3.3     1.9     1.1

   DAILY MEANS   27    1.875     361.3             1.8
   STANDARD DEVIATION              5.2             1.9
                             28 / 28


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:47 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:58:54   17    4.350     338.7     4.4     7.9     1.2
ZS 0  11:12:50   18    3.736     351.3     3.1     2.9     0.9
ZS 0  11:33:00   19    3.093     357.3     1.8     0.5     0.5
ZS 0  11:46:56   20    2.761     359.3     1.9    -0.7     0.4
ZS 0  12:00:48   20    2.496     359.6     2.0    -0.5     0.4
ZS 0  12:14:38   21    2.278     362.4     3.7    -0.5     0.2
ZS 1  12:35:00   23    2.023     367.6     1.6    -0.7     0.4
ZS 1  12:48:54   23    1.882     369.8     5.0     0.0     0.7
ZS 1  13:02:49   24    1.762     371.4     4.2    -0.7     0.9
ZS 1  13:14:12   24    1.677     372.2     2.5    -1.0     0.6
ZS 1  13:34:32   25    1.548     367.1     2.1     1.2     0.7
ZS 1  13:48:29   25    1.474     367.9     2.4     0.7     0.5
ZS 2  14:02:23   26    1.410     371.9     2.8     1.4     2.1
ZS 1  14:16:20   27    1.353     370.2     2.5     0.7     0.7
ZS 1  14:36:41   28    1.284     371.5     2.1     0.4     0.6
ZS 2  14:55:30   29    1.231     369.7     3.8     1.5     1.2
ZS 1  15:09:23   30    1.198     371.2     2.3     0.6     1.0
ZS 1  15:20:46   30    1.174     370.1     1.8     0.6     0.6
ZS 2  16:09:03   30    1.102     365.8     3.2     1.6     1.1
ZS 1  16:47:57   31    1.073     369.0     1.1     0.7     0.6
ZS 2  17:01:48   32    1.068     362.4     5.0     3.1     1.3
ZS 1  17:22:13   31    1.066     361.2     3.7     4.5     1.2
ZS 2  17:36:04   31    1.068     366.3     3.0     2.4     0.7
ZS 2  18:14:53   32    1.088     373.0     2.8     1.4     1.0
ZS 2  19:11:57   33    1.162     360.3     2.8     2.3     0.7
ZS 1  19:25:50   34    1.189     359.7     2.2     0.7     0.5
ZS 1  19:39:42   34    1.221     357.9     1.9     1.6     0.9
ZS 1  20:00:00   34    1.276     357.1     1.0     1.1     0.4
ZS 1  20:17:05   35    1.332     356.4     1.3     1.3     0.6

   DAILY MEANS   27    1.703     364.1             1.2
   STANDARD DEVIATION              7.7             1.8
                             29 / 29


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-21
     LOCAL SOLAR NOON = 17:19:47 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:56:02    16     87.793      10.950    0.0     326.0   4.0      80
 10:15:03    16     84.803       8.160    0.1     361.0   5.0      84
 10:35:10    16     81.541       5.938    0.1     369.0   5.0      84
 10:49:02    17     79.244       4.911    0.2     375.0   4.0      84
 11:02:58    17     76.899       4.156    0.3     385.0   3.0      85
 11:16:49    18     74.521       3.590    0.4     374.0   2.0      85
 11:36:59    19     71.027       2.990    0.5     366.0   1.0      85
 11:50:55    20     68.583       2.679    0.7     369.0   1.0      85
 12:04:46    21     66.133       2.429    0.9     362.0   1.0      86
 12:18:37    22     63.663       2.223    1.1     369.0   1.0      89
 12:38:58    23     60.014       1.980    1.5     363.0   1.0      91
 12:52:57    24     57.510       1.846    1.5     351.0   1.0      74
 13:06:51    24     55.003       1.731    1.8     390.0   2.0      86
 13:38:29    25     49.287       1.526    3.1     361.0   1.0      98
 14:06:27    26     44.307       1.393    2.1     357.0   1.0      52
 14:20:18    27     41.854       1.339    3.8     421.0   4.0      96
 14:45:40    28     37.479       1.258    5.1     360.0   1.0      96
 14:59:34    29     35.167       1.221    5.6     358.0   1.0      99
 15:40:31    30     28.782       1.140    6.8     355.0   1.0     100
 15:49:51    30     27.455       1.126    6.9     353.0   1.0      98
 15:59:11    31     26.210       1.114    3.0     358.0   1.0      42
 16:13:07    30     24.520       1.098    3.3     360.0   1.0      44
 16:38:02    31     22.077       1.079    6.9     270.0   6.0      56
 16:52:01    31     21.127       1.072    8.1     349.0   1.0     100
 17:26:11    31     20.384       1.066    3.1     362.0   1.0      40
 17:40:03    31     20.766       1.069    7.5     361.0   4.0      99
 17:58:31    32     21.849       1.077    7.0     372.0   4.0      99
 18:18:56    32     23.694       1.091    3.3     352.0   1.0      43
 18:28:10    32     24.727       1.100    7.2     354.0   1.0      96
 19:02:07    33     29.237       1.145    6.4     348.0   1.0      92
 19:16:01    33     31.320       1.169    6.0     351.0   1.0      93
 19:29:49    34     33.514       1.198    5.7     348.0   1.0      92
 19:43:45    34     35.787       1.231    5.5     349.0   1.0      95
 20:08:59    35     40.091       1.304    4.6     347.0   1.0      92
 20:21:03    35     42.194       1.346    4.2     346.0   1.0      92

DAILY MEANS  27                  2.278            358.6            83
STANDARD DEVIATION                                 22.1            18
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170621 20:29
SXCN10 CWTO 212130
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:48 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:40:51   16    5.471     361.8     1.7    -5.7     2.0
DS 1  10:54:46   17    4.568     364.8     2.2    -1.9     1.7
DS 2  11:08:42   17    3.901     365.9     1.4     0.7     1.0
DS 2  11:28:52   19    3.206     366.2     0.6     1.4     0.1
DS 3  11:42:47   19    2.852     366.6     0.6     1.4     0.7
DS 3  11:56:40   20    2.569     365.8     1.7     2.1     0.8
DS 3  12:10:31   21    2.339     367.0     0.5     1.7     0.2
DS 4  12:30:47   22    2.071     365.3     1.6     1.6     0.5
DS 4  12:44:43   23    1.922     363.6     1.6     1.7     0.8
DS 4  12:58:37   24    1.797     362.2     0.4     1.7     0.5
DS 4  13:30:21   24    1.572     360.6     2.4     2.8     0.7
DS 5  13:44:18   25    1.495     361.6     1.7     2.6     0.7
DS 4  14:12:09   26    1.370     361.5     1.7     2.7     0.5
DS 5  14:32:30   27    1.297     363.0     1.5     1.9     0.8
DS 5  14:51:24   29    1.242     361.2     2.3     2.1     0.5
DS 5  15:05:12   29    1.208     360.6     0.3     1.6     0.3
DS 5  15:36:59   30    1.145     362.2     3.5     2.1     0.8
DS 5  16:34:30   31    1.081     358.1     1.3     1.7     0.8
DS 5  17:45:54   31    1.071     356.6     1.2     2.2     0.4
DS 5  17:55:05   31    1.075     356.7     2.6     2.1     1.0
DS 0  18:10:47   32    1.085     376.5     2.9     6.0     0.6
DS 5  18:24:43   32    1.097     360.4     1.7     2.8     0.7
DS 5  18:33:54   32    1.106     357.8     2.1     3.0     0.4
DS 5  18:43:04   32    1.117     357.0     1.9     2.8     0.5
DS 5  18:58:40   33    1.139     354.2     2.2     2.1     0.5
DS 5  19:07:52   33    1.154     356.4     2.7     1.8     0.4
DS 5  19:21:40   33    1.180     352.8     2.5     2.2     0.5
DS 5  20:26:56   35    1.368     351.3     3.3     1.9     1.1
DS 5  21:15:00   35    1.609     347.0     1.2     1.9     0.5

   DAILY MEANS   27    1.866     360.9             1.8
   STANDARD DEVIATION              5.8             1.9
                             29 / 29


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:48 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:58:54   17    4.350     338.7     4.4     7.9     1.2
ZS 0  11:12:50   18    3.736     351.3     3.1     2.9     0.9
ZS 0  11:33:00   19    3.093     357.3     1.8     0.5     0.5
ZS 0  11:46:56   20    2.761     359.3     1.9    -0.7     0.4
ZS 0  12:00:48   20    2.496     359.6     2.0    -0.5     0.4
ZS 0  12:14:38   21    2.278     362.4     3.7    -0.5     0.2
ZS 1  12:35:00   23    2.023     367.6     1.6    -0.7     0.4
ZS 1  12:48:54   23    1.882     369.8     5.0     0.0     0.7
ZS 1  13:02:49   24    1.762     371.4     4.2    -0.7     0.9
ZS 1  13:14:12   24    1.677     372.2     2.5    -1.0     0.6
ZS 1  13:34:32   25    1.548     367.1     2.1     1.2     0.7
ZS 1  13:48:29   25    1.474     367.9     2.4     0.7     0.5
ZS 2  14:02:23   26    1.410     371.9     2.8     1.4     2.1
ZS 1  14:16:20   27    1.353     370.2     2.5     0.7     0.7
ZS 1  14:36:41   28    1.284     371.5     2.1     0.4     0.6
ZS 2  14:55:30   29    1.231     369.7     3.8     1.5     1.2
ZS 1  15:09:23   30    1.198     371.2     2.3     0.6     1.0
ZS 1  15:20:46   30    1.174     370.1     1.8     0.6     0.6
ZS 2  16:09:03   30    1.102     365.8     3.2     1.6     1.1
ZS 1  16:47:57   31    1.073     369.0     1.1     0.7     0.6
ZS 2  17:01:48   32    1.068     362.4     5.0     3.1     1.3
ZS 1  17:22:13   31    1.066     361.2     3.7     4.5     1.2
ZS 2  17:36:04   31    1.068     366.3     3.0     2.4     0.7
ZS 2  18:14:53   32    1.088     373.0     2.8     1.4     1.0
ZS 2  19:11:57   33    1.162     360.3     2.8     2.3     0.7
ZS 1  19:25:50   34    1.189     359.7     2.2     0.7     0.5
ZS 1  19:39:42   34    1.221     357.9     1.9     1.6     0.9
ZS 1  20:00:00   34    1.276     357.1     1.0     1.1     0.4
ZS 1  20:17:05   35    1.332     356.4     1.3     1.3     0.6
ZS 1  20:31:06   35    1.385     356.1     1.1     1.0     0.5
ZS 1  20:45:00   35    1.445     355.1     1.8     1.3     0.7
ZS 1  21:05:17   35    1.550     352.0     1.4     0.9     0.4
ZS 1  21:19:12   35    1.636     352.6     3.4     0.4     1.0

   DAILY MEANS   28    1.679     362.9             1.2
   STANDARD DEVIATION              8.0             1.7
                             33 / 33


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-21
     LOCAL SOLAR NOON = 17:19:48 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:56:03    16     87.793      10.950    0.0     326.0   4.0      80
 10:15:04    16     84.803       8.160    0.1     361.0   5.0      84
 10:35:11    16     81.541       5.938    0.1     369.0   5.0      84
 10:49:03    17     79.244       4.911    0.2     375.0   4.0      84
 11:02:59    17     76.899       4.156    0.3     385.0   3.0      85
 11:16:49    18     74.521       3.590    0.4     374.0   2.0      85
 11:36:59    19     71.027       2.990    0.5     366.0   1.0      85
 11:50:55    20     68.583       2.679    0.7     369.0   1.0      85
 12:04:46    21     66.133       2.429    0.9     362.0   1.0      86
 12:18:37    22     63.663       2.223    1.1     369.0   1.0      89
 12:38:58    23     60.014       1.980    1.5     363.0   1.0      91
 12:52:58    24     57.510       1.846    1.5     351.0   1.0      74
 13:06:52    24     55.003       1.731    1.8     390.0   2.0      86
 13:38:29    25     49.287       1.526    3.1     361.0   1.0      98
 14:06:28    26     44.307       1.393    2.1     357.0   1.0      52
 14:20:18    27     41.854       1.339    3.8     421.0   4.0      96
 14:45:40    28     37.479       1.258    5.1     360.0   1.0      96
 14:59:35    29     35.167       1.221    5.6     358.0   1.0      99
 15:40:32    30     28.782       1.140    6.8     355.0   1.0     100
 15:49:51    30     27.455       1.126    6.9     353.0   1.0      98
 15:59:11    31     26.210       1.114    3.0     358.0   1.0      42
 16:13:08    30     24.520       1.098    3.3     360.0   1.0      44
 16:38:03    31     22.077       1.079    6.9     270.0   6.0      56
 16:52:02    31     21.127       1.072    8.1     349.0   1.0     100
 17:26:11    31     20.384       1.066    3.1     362.0   1.0      40
 17:40:03    31     20.766       1.069    7.5     361.0   4.0      99
 17:58:31    32     21.849       1.077    7.0     372.0   4.0      99
 18:18:57    32     23.694       1.091    3.3     352.0   1.0      43
 18:28:10    32     24.727       1.100    7.2     354.0   1.0      96
 19:02:07    33     29.237       1.145    6.4     348.0   1.0      92
 19:16:02    33     31.320       1.169    6.0     351.0   1.0      93
 19:29:49    34     33.514       1.198    5.7     348.0   1.0      92
 19:43:46    34     35.787       1.231    5.5     349.0   1.0      95
 20:08:59    35     40.091       1.304    4.6     347.0   1.0      92
 20:21:03    35     42.194       1.346    4.2     346.0   1.0      92
 20:35:10    35     44.666       1.401    3.7     348.0   1.0      89
 20:48:58    35     47.142       1.464    3.3     346.0   1.0      89
 21:09:15    35     50.782       1.574    2.7     347.0   1.0      88
 21:23:09    35     53.290       1.663    2.4     342.0   1.0      86

DAILY MEANS  28                  2.201            357.3            84
STANDARD DEVIATION                                 21.3            17
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170621 21:30
SXCN10 CWTO 212230
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:48 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:40:51   16    5.471     361.8     1.7    -5.7     2.0
DS 1  10:54:46   17    4.568     364.8     2.2    -1.9     1.7
DS 2  11:08:42   17    3.901     365.9     1.4     0.7     1.0
DS 2  11:28:52   19    3.206     366.2     0.6     1.4     0.1
DS 3  11:42:47   19    2.852     366.6     0.6     1.4     0.7
DS 3  11:56:40   20    2.569     365.8     1.7     2.1     0.8
DS 3  12:10:31   21    2.339     367.0     0.5     1.7     0.2
DS 4  12:30:47   22    2.071     365.3     1.6     1.6     0.5
DS 4  12:44:43   23    1.922     363.6     1.6     1.7     0.8
DS 4  12:58:37   24    1.797     362.2     0.4     1.7     0.5
DS 4  13:30:21   24    1.572     360.6     2.4     2.8     0.7
DS 5  13:44:18   25    1.495     361.6     1.7     2.6     0.7
DS 4  14:12:09   26    1.370     361.5     1.7     2.7     0.5
DS 5  14:32:30   27    1.297     363.0     1.5     1.9     0.8
DS 5  14:51:24   29    1.242     361.2     2.3     2.1     0.5
DS 5  15:05:12   29    1.208     360.6     0.3     1.6     0.3
DS 5  15:36:59   30    1.145     362.2     3.5     2.1     0.8
DS 5  16:34:30   31    1.081     358.1     1.3     1.7     0.8
DS 5  17:45:54   31    1.071     356.6     1.2     2.2     0.4
DS 5  17:55:05   31    1.075     356.7     2.6     2.1     1.0
DS 0  18:10:47   32    1.085     376.5     2.9     6.0     0.6
DS 5  18:24:43   32    1.097     360.4     1.7     2.8     0.7
DS 5  18:33:54   32    1.106     357.8     2.1     3.0     0.4
DS 5  18:43:04   32    1.117     357.0     1.9     2.8     0.5
DS 5  18:58:40   33    1.139     354.2     2.2     2.1     0.5
DS 5  19:07:52   33    1.154     356.4     2.7     1.8     0.4
DS 5  19:21:40   33    1.180     352.8     2.5     2.2     0.5
DS 5  20:26:56   35    1.368     351.3     3.3     1.9     1.1
DS 5  21:15:00   35    1.609     347.0     1.2     1.9     0.5
DS 4  21:28:59   35    1.704     345.5     1.2     2.3     0.4
DS 4  21:42:53   34    1.814     345.1     1.5     2.0     0.7
DS 0  22:03:14   34    2.010     334.2     4.9     4.7     2.4
DS 4  22:17:19   33    2.177     342.5     1.2     2.1     0.6

   DAILY MEANS   28    1.873     358.5             1.9
   STANDARD DEVIATION              8.4             1.8
                             33 / 33


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-21
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:48 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:58:54   17    4.350     338.7     4.4     7.9     1.2
ZS 0  11:12:50   18    3.736     351.3     3.1     2.9     0.9
ZS 0  11:33:00   19    3.093     357.3     1.8     0.5     0.5
ZS 0  11:46:56   20    2.761     359.3     1.9    -0.7     0.4
ZS 0  12:00:48   20    2.496     359.6     2.0    -0.5     0.4
ZS 0  12:14:38   21    2.278     362.4     3.7    -0.5     0.2
ZS 1  12:35:00   23    2.023     367.6     1.6    -0.7     0.4
ZS 1  12:48:54   23    1.882     369.8     5.0     0.0     0.7
ZS 1  13:02:49   24    1.762     371.4     4.2    -0.7     0.9
ZS 1  13:14:12   24    1.677     372.2     2.5    -1.0     0.6
ZS 1  13:34:32   25    1.548     367.1     2.1     1.2     0.7
ZS 1  13:48:29   25    1.474     367.9     2.4     0.7     0.5
ZS 2  14:02:23   26    1.410     371.9     2.8     1.4     2.1
ZS 1  14:16:20   27    1.353     370.2     2.5     0.7     0.7
ZS 1  14:36:41   28    1.284     371.5     2.1     0.4     0.6
ZS 2  14:55:30   29    1.231     369.7     3.8     1.5     1.2
ZS 1  15:09:23   30    1.198     371.2     2.3     0.6     1.0
ZS 1  15:20:46   30    1.174     370.1     1.8     0.6     0.6
ZS 2  16:09:03   30    1.102     365.8     3.2     1.6     1.1
ZS 1  16:47:57   31    1.073     369.0     1.1     0.7     0.6
ZS 2  17:01:48   32    1.068     362.4     5.0     3.1     1.3
ZS 1  17:22:13   31    1.066     361.2     3.7     4.5     1.2
ZS 2  17:36:04   31    1.068     366.3     3.0     2.4     0.7
ZS 2  18:14:53   32    1.088     373.0     2.8     1.4     1.0
ZS 2  19:11:57   33    1.162     360.3     2.8     2.3     0.7
ZS 1  19:25:50   34    1.189     359.7     2.2     0.7     0.5
ZS 1  19:39:42   34    1.221     357.9     1.9     1.6     0.9
ZS 1  20:00:00   34    1.276     357.1     1.0     1.1     0.4
ZS 1  20:17:05   35    1.332     356.4     1.3     1.3     0.6
ZS 1  20:31:06   35    1.385     356.1     1.1     1.0     0.5
ZS 1  20:45:00   35    1.445     355.1     1.8     1.3     0.7
ZS 1  21:05:17   35    1.550     352.0     1.4     0.9     0.4
ZS 1  21:19:12   35    1.636     352.6     3.4     0.4     1.0
ZS 1  21:33:10   35    1.736     345.8     1.4     1.2     0.4
ZS 1  21:47:04   34    1.851     346.1     4.1     0.6     0.8
ZS 0  22:07:25   34    2.057     345.2     4.7     0.6     0.4
ZS 0  22:21:27   33    2.232     344.8     1.3    -0.1     0.3

   DAILY MEANS   29    1.710     361.0             1.1
   STANDARD DEVIATION              9.3             1.6
                             37 / 37


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-21
     LOCAL SOLAR NOON = 17:19:48 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:56:03    16     87.793      10.950    0.0     326.0   4.0      80
 10:15:04    16     84.803       8.160    0.1     361.0   5.0      84
 10:35:11    16     81.541       5.938    0.1     369.0   5.0      84
 10:49:03    17     79.244       4.911    0.2     375.0   4.0      84
 11:02:59    17     76.899       4.156    0.3     385.0   3.0      85
 11:16:49    18     74.521       3.590    0.4     374.0   2.0      85
 11:36:59    19     71.027       2.990    0.5     366.0   1.0      85
 11:50:55    20     68.583       2.679    0.7     369.0   1.0      85
 12:04:46    21     66.133       2.429    0.9     362.0   1.0      86
 12:18:37    22     63.663       2.223    1.1     369.0   1.0      89
 12:38:58    23     60.014       1.980    1.5     363.0   1.0      91
 12:52:58    24     57.510       1.846    1.5     351.0   1.0      74
 13:06:52    24     55.003       1.731    1.8     390.0   2.0      86
 13:38:29    25     49.287       1.526    3.1     361.0   1.0      98
 14:06:28    26     44.307       1.393    2.1     357.0   1.0      52
 14:20:18    27     41.854       1.339    3.8     421.0   4.0      96
 14:45:40    28     37.479       1.258    5.1     360.0   1.0      96
 14:59:35    29     35.167       1.221    5.6     358.0   1.0      99
 15:40:32    30     28.782       1.140    6.8     355.0   1.0     100
 15:49:51    30     27.455       1.126    6.9     353.0   1.0      98
 15:59:11    31     26.210       1.114    3.0     358.0   1.0      42
 16:13:08    30     24.520       1.098    3.3     360.0   1.0      44
 16:38:03    31     22.077       1.079    6.9     270.0   6.0      56
 16:52:02    31     21.127       1.072    8.1     349.0   1.0     100
 17:26:11    31     20.384       1.066    3.1     362.0   1.0      40
 17:40:03    31     20.766       1.069    7.5     361.0   4.0      99
 17:58:31    32     21.849       1.077    7.0     372.0   4.0      99
 18:18:57    32     23.694       1.091    3.3     352.0   1.0      43
 18:28:10    32     24.727       1.100    7.2     354.0   1.0      96
 19:02:07    33     29.237       1.145    6.4     348.0   1.0      92
 19:16:02    33     31.320       1.169    6.0     351.0   1.0      93
 19:29:49    34     33.514       1.198    5.7     348.0   1.0      92
 19:43:46    34     35.787       1.231    5.5     349.0   1.0      95
 20:08:59    35     40.091       1.304    4.6     347.0   1.0      92
 20:21:03    35     42.194       1.346    4.2     346.0   1.0      92
 20:35:10    35     44.666       1.401    3.7     348.0   1.0      89
 20:48:58    35     47.142       1.464    3.3     346.0   1.0      89
 21:09:15    35     50.782       1.574    2.7     347.0   1.0      88
 21:23:09    35     53.290       1.663    2.4     342.0   1.0      86
 21:37:08    35     55.814       1.767    2.0     344.0   1.0      85
 21:51:08    34     58.320       1.887    1.1     334.0   1.0      54
 22:11:24    33     61.982       2.103    1.3     350.0   1.0      83
 22:25:26    33     64.492       2.288    1.0     346.0   1.0      81

DAILY MEANS  28                  2.184            356.0            83
STANDARD DEVIATION                                 20.7            17
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170621 22:29
SXCN10 CWTO 220030
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170622 00:29
SXCN10 CWTO 220130
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170622 01:23
SXCN10 CWTO 220230
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170622 02:29
SXCN10 CWTO 220330
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170622 03:29
SXCN10 CWTO 220430
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17217.145
LATEST B-FILE TIMESTAMP:  20170622 04:24
SXCN10 CWTO 220530
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 05:29
SXCN10 CWTO 220630
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 06:29
SXCN10 CWTO 220730
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 07:28
SXCN10 CWTO 220830
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 08:29
SXCN10 CWTO 220930
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 09:30
SXCN10 CWTO 221030


    ***      INSUFFICIENT DATA TO CALCULATE      ***
    ***  STATISTICS FOR THIS DAY'S OBSERVATIONS. ***


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:19:54 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:14    16     87.629      10.804    0.0     288.0   3.0      84

DAILY MEANS  16                 10.804            288.0            84
STANDARD DEVIATION                                  0.0             0
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 10:29
SXCN10 CWTO 221130
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:55 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4

   DAILY MEANS   18    4.530     293.6            -0.6
   STANDARD DEVIATION              4.3             2.8
                             4 / 4


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:55 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7

   DAILY MEANS   18    4.260     312.1             8.7
   STANDARD DEVIATION              3.7             5.2
                             2 / 2


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:19:55 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:15    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:47    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:38    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:29    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:20    18     75.330       3.765    0.4     293.0   2.0      77

DAILY MEANS  17                  6.104            303.8            76
STANDARD DEVIATION                                 12.5             7
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 11:29
SXCN10 CWTO 221230
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:55 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6

   DAILY MEANS   20    3.538     294.8             0.4
   STANDARD DEVIATION              3.4             2.1
                             8 / 8


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:55 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3

   DAILY MEANS   20    3.214     300.0             2.8
   STANDARD DEVIATION              9.5             5.2
                             6 / 6


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:19:55 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:15    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:47    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:38    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:29    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:20    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95

DAILY MEANS  18                  4.863            302.9            82
STANDARD DEVIATION                                  9.6             9
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 12:30
SXCN10 CWTO 221330
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:56 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6
DS 4  12:37:30   24    1.999     291.7     1.3     2.1     0.5
DS 2  12:51:29   25    1.861     294.4     4.8     1.5     1.1

   DAILY MEANS   21    3.216     294.4             0.7
   STANDARD DEVIATION              3.2             2.0
                             10 / 10


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:56 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3
ZS 1  12:41:42   25    1.955     300.7     1.0    -0.8     0.5
ZS 1  12:55:40   25    1.824     297.2     1.0    -1.3     0.5
ZS 1  13:08:58   26    1.717     300.8     1.7    -1.2     0.4

   DAILY MEANS   22    2.754     299.9             1.5
   STANDARD DEVIATION              7.6             4.5
                             9 / 9


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:19:56 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:16    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:48    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:39    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:30    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:21    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95
 12:31:46    24     61.350       2.062    1.9     296.0   1.0     101
 12:45:40    25     58.851       1.915    1.7     291.0   1.0      73
 12:59:38    26     56.336       1.790    1.9     305.0   1.0      76
 13:12:56    26     53.933       1.688    1.4     294.0   1.0      44

DAILY MEANS  21                  3.864            300.8            79
STANDARD DEVIATION                                  8.8            15
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 13:29
SXCN10 CWTO 221430
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:57 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6
DS 4  12:37:30   24    1.999     291.7     1.3     2.1     0.5
DS 2  12:51:29   25    1.861     294.4     4.8     1.5     1.1
DS 0  13:39:03   25    1.524     296.6     3.4     4.8     1.7

   DAILY MEANS   21    3.063     294.6             1.1
   STANDARD DEVIATION              3.1             2.2
                             11 / 11


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:57 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3
ZS 1  12:41:42   25    1.955     300.7     1.0    -0.8     0.5
ZS 1  12:55:40   25    1.824     297.2     1.0    -1.3     0.5
ZS 1  13:08:58   26    1.717     300.8     1.7    -1.2     0.4
ZS 1  13:29:18   26    1.580     304.3     1.9     1.3     0.5
ZS 1  13:43:14   25    1.502     307.4     2.0     2.0     0.5
ZS 1  13:57:10   25    1.434     315.4     1.6     4.4     0.7
ZS 1  14:11:05   25    1.375     309.4     2.6     2.5     1.0

   DAILY MEANS   23    2.359     302.7             1.8
   STANDARD DEVIATION              8.0             3.8
                             13 / 13


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:19:57 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:17    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:49    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:40    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:31    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:22    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95
 12:31:46    24     61.350       2.062    1.9     296.0   1.0     101
 12:45:40    25     58.851       1.915    1.7     291.0   1.0      73
 12:59:39    26     56.336       1.790    1.9     305.0   1.0      76
 13:12:56    26     53.933       1.688    1.4     294.0   1.0      44
 13:33:15    25     50.271       1.557    1.3     299.0   1.0      35
 13:47:12    25     47.767       1.482    1.1     303.0   1.0      26
 14:01:07    25     45.281       1.416    1.2     311.0   1.0      26
 14:15:03    25     42.817       1.359    1.6     307.0   1.0      30

DAILY MEANS  22                  3.261            301.8            67
STANDARD DEVIATION                                  8.1            26
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 14:29
SXCN10 CWTO 221530
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:57 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6
DS 4  12:37:30   24    1.999     291.7     1.3     2.1     0.5
DS 2  12:51:29   25    1.861     294.4     4.8     1.5     1.1
DS 0  13:39:03   25    1.524     296.6     3.4     4.8     1.7
DS 0  14:46:10   25    1.257     305.2     2.9     8.4     1.9

   DAILY MEANS   21    2.912     295.5             1.7
   STANDARD DEVIATION              4.2             3.0
                             12 / 12


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:57 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3
ZS 1  12:41:42   25    1.955     300.7     1.0    -0.8     0.5
ZS 1  12:55:40   25    1.824     297.2     1.0    -1.3     0.5
ZS 1  13:08:58   26    1.717     300.8     1.7    -1.2     0.4
ZS 1  13:29:18   26    1.580     304.3     1.9     1.3     0.5
ZS 1  13:43:14   25    1.502     307.4     2.0     2.0     0.5
ZS 1  13:57:10   25    1.434     315.4     1.6     4.4     0.7
ZS 1  14:11:05   25    1.375     309.4     2.6     2.5     1.0
ZS 1  14:31:26   25    1.301     323.3     3.1     8.1     0.6
ZS 1  14:50:21   25    1.245     311.3     2.1     5.1     0.5
ZS 1  15:04:16   25    1.210     315.6     1.7     7.4     0.5
ZS 1  15:18:12   25    1.180     345.8     2.0    12.3     0.7

   DAILY MEANS   23    2.095     307.7             3.3
   STANDARD DEVIATION             13.4             4.5
                             17 / 17


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:19:57 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:17    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:49    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:40    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:31    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:22    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95
 12:31:46    24     61.350       2.062    1.9     296.0   1.0     101
 12:45:40    25     58.851       1.915    1.7     291.0   1.0      73
 12:59:39    26     56.336       1.790    1.9     305.0   1.0      76
 13:12:56    26     53.933       1.688    1.4     294.0   1.0      44
 13:33:15    25     50.271       1.557    1.3     299.0   1.0      35
 13:47:12    25     47.767       1.482    1.1     303.0   1.0      26
 14:01:07    25     45.281       1.416    1.2     311.0   1.0      26
 14:15:03    25     42.817       1.359    1.6     307.0   1.0      30
 14:40:23    25     38.420       1.274    2.0     310.0   1.0      33
 14:54:19    25     36.065       1.235    2.1     311.0   1.0      32
 15:08:16    25     33.776       1.201    1.5     316.0   1.0      22
 15:22:13    24     31.561       1.172    0.8     374.0   1.0      13

DAILY MEANS  22                  2.853            307.0            58
STANDARD DEVIATION                                 17.8            29
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 15:28
SXCN10 CWTO 221630
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:58 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6
DS 4  12:37:30   24    1.999     291.7     1.3     2.1     0.5
DS 2  12:51:29   25    1.861     294.4     4.8     1.5     1.1
DS 0  13:39:03   25    1.524     296.6     3.4     4.8     1.7
DS 0  14:46:10   25    1.257     305.2     2.9     8.4     1.9

   DAILY MEANS   21    2.912     295.5             1.7
   STANDARD DEVIATION              4.2             3.0
                             12 / 12


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:58 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3
ZS 1  12:41:42   25    1.955     300.7     1.0    -0.8     0.5
ZS 1  12:55:40   25    1.824     297.2     1.0    -1.3     0.5
ZS 1  13:08:58   26    1.717     300.8     1.7    -1.2     0.4
ZS 1  13:29:18   26    1.580     304.3     1.9     1.3     0.5
ZS 1  13:43:14   25    1.502     307.4     2.0     2.0     0.5
ZS 1  13:57:10   25    1.434     315.4     1.6     4.4     0.7
ZS 1  14:11:05   25    1.375     309.4     2.6     2.5     1.0
ZS 1  14:31:26   25    1.301     323.3     3.1     8.1     0.6
ZS 1  14:50:21   25    1.245     311.3     2.1     5.1     0.5
ZS 1  15:04:16   25    1.210     315.6     1.7     7.4     0.5
ZS 1  15:18:12   25    1.180     345.8     2.0    12.3     0.7
ZS 1  15:38:33   24    1.143     344.9     2.0    12.5     0.6
ZS 0  15:52:27   23    1.123     360.7     2.5    17.4     1.3
ZS 0  16:06:23   22    1.106     347.1     2.9    13.8     1.5
ZS 1  16:20:19   22    1.092     339.4     2.3    12.1     0.9

   DAILY MEANS   23    1.908     315.4             5.3
   STANDARD DEVIATION             20.5             6.0
                             21 / 21


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:19:58 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:18    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:50    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:41    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:32    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:23    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95
 12:31:46    24     61.350       2.062    1.9     296.0   1.0     101
 12:45:40    25     58.851       1.915    1.7     291.0   1.0      73
 12:59:40    26     56.336       1.790    1.9     305.0   1.0      76
 13:12:56    26     53.933       1.688    1.4     294.0   1.0      44
 13:33:15    25     50.271       1.557    1.3     299.0   1.0      35
 13:47:12    25     47.767       1.482    1.1     303.0   1.0      26
 14:01:07    25     45.281       1.416    1.2     311.0   1.0      26
 14:15:03    25     42.817       1.359    1.6     307.0   1.0      30
 14:40:23    25     38.420       1.274    2.0     310.0   1.0      33
 14:54:19    25     36.065       1.235    2.1     311.0   1.0      32
 15:08:17    25     33.776       1.201    1.5     316.0   1.0      22
 15:22:14    24     31.561       1.172    0.8     374.0   1.0      13
 15:42:34    23     28.519       1.137    0.7     371.0   1.0      11
 15:56:29    23     26.602       1.117    0.7     391.0   1.0      11
 16:10:26    22     24.859       1.101    0.9     374.0   1.0      12
 16:24:20    22     23.339       1.088    1.1     369.0   1.0      15

DAILY MEANS  22                  2.563            318.5            51
STANDARD DEVIATION                                 31.1            31
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 16:29
SXCN10 CWTO 221730
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:58 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6
DS 4  12:37:30   24    1.999     291.7     1.3     2.1     0.5
DS 2  12:51:29   25    1.861     294.4     4.8     1.5     1.1
DS 0  13:39:03   25    1.524     296.6     3.4     4.8     1.7
DS 0  14:46:10   25    1.257     305.2     2.9     8.4     1.9

   DAILY MEANS   21    2.912     295.5             1.7
   STANDARD DEVIATION              4.2             3.0
                             12 / 12


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:58 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3
ZS 1  12:41:42   25    1.955     300.7     1.0    -0.8     0.5
ZS 1  12:55:40   25    1.824     297.2     1.0    -1.3     0.5
ZS 1  13:08:58   26    1.717     300.8     1.7    -1.2     0.4
ZS 1  13:29:18   26    1.580     304.3     1.9     1.3     0.5
ZS 1  13:43:14   25    1.502     307.4     2.0     2.0     0.5
ZS 1  13:57:10   25    1.434     315.4     1.6     4.4     0.7
ZS 1  14:11:05   25    1.375     309.4     2.6     2.5     1.0
ZS 1  14:31:26   25    1.301     323.3     3.1     8.1     0.6
ZS 1  14:50:21   25    1.245     311.3     2.1     5.1     0.5
ZS 1  15:04:16   25    1.210     315.6     1.7     7.4     0.5
ZS 1  15:18:12   25    1.180     345.8     2.0    12.3     0.7
ZS 1  15:38:33   24    1.143     344.9     2.0    12.5     0.6
ZS 0  15:52:27   23    1.123     360.7     2.5    17.4     1.3
ZS 0  16:06:23   22    1.106     347.1     2.9    13.8     1.5
ZS 1  16:20:19   22    1.092     339.4     2.3    12.1     0.9
ZS 2  16:40:37   22    1.077     312.2     1.4     7.4     0.7
ZS 2  16:54:28   22    1.071     307.5     3.3     5.5     0.9
ZS 2  17:08:19   22    1.067     309.2     2.5     6.5     1.0
ZS 2  17:21:32   23    1.066     302.3     0.9     4.2     0.5

   DAILY MEANS   23    1.774     314.2             5.4
   STANDARD DEVIATION             18.9             5.5
                             25 / 25


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:19:58 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:18    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:50    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:41    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:32    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:23    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95
 12:31:46    24     61.350       2.062    1.9     296.0   1.0     101
 12:45:40    25     58.851       1.915    1.7     291.0   1.0      73
 12:59:40    26     56.336       1.790    1.9     305.0   1.0      76
 13:12:56    26     53.933       1.688    1.4     294.0   1.0      44
 13:33:15    25     50.271       1.557    1.3     299.0   1.0      35
 13:47:12    25     47.767       1.482    1.1     303.0   1.0      26
 14:01:07    25     45.281       1.416    1.2     311.0   1.0      26
 14:15:03    25     42.817       1.359    1.6     307.0   1.0      30
 14:40:23    25     38.420       1.274    2.0     310.0   1.0      33
 14:54:19    25     36.065       1.235    2.1     311.0   1.0      32
 15:08:17    25     33.776       1.201    1.5     316.0   1.0      22
 15:22:14    24     31.561       1.172    0.8     374.0   1.0      13
 15:42:34    23     28.519       1.137    0.7     371.0   1.0      11
 15:56:29    23     26.602       1.117    0.7     391.0   1.0      11
 16:10:26    22     24.859       1.101    0.9     374.0   1.0      12
 16:24:20    22     23.339       1.088    1.1     369.0   1.0      15
 16:44:35    22     21.606       1.075    3.9     310.0   1.0      42
 16:58:26    22     20.822       1.069    4.0     302.0   1.0      42
 17:12:19    22     20.408       1.066    4.1     314.0   1.0      45
 17:25:32    23     20.380       1.066    6.8     286.0   3.0      63

DAILY MEANS  22                  2.349            316.3            50
STANDARD DEVIATION                                 29.6            29
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 17:29
SXCN10 CWTO 221830
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:59 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6
DS 4  12:37:30   24    1.999     291.7     1.3     2.1     0.5
DS 2  12:51:29   25    1.861     294.4     4.8     1.5     1.1
DS 0  13:39:03   25    1.524     296.6     3.4     4.8     1.7
DS 0  14:46:10   25    1.257     305.2     2.9     8.4     1.9
DS 2  17:50:58   24    1.073     299.6     0.4     1.3     0.3
DS 0  18:05:08   24    1.081     294.2     2.9     3.3     1.4

   DAILY MEANS   22    2.650     295.7             1.8
   STANDARD DEVIATION              4.1             2.8
                             14 / 14


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:59 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3
ZS 1  12:41:42   25    1.955     300.7     1.0    -0.8     0.5
ZS 1  12:55:40   25    1.824     297.2     1.0    -1.3     0.5
ZS 1  13:08:58   26    1.717     300.8     1.7    -1.2     0.4
ZS 1  13:29:18   26    1.580     304.3     1.9     1.3     0.5
ZS 1  13:43:14   25    1.502     307.4     2.0     2.0     0.5
ZS 1  13:57:10   25    1.434     315.4     1.6     4.4     0.7
ZS 1  14:11:05   25    1.375     309.4     2.6     2.5     1.0
ZS 1  14:31:26   25    1.301     323.3     3.1     8.1     0.6
ZS 1  14:50:21   25    1.245     311.3     2.1     5.1     0.5
ZS 1  15:04:16   25    1.210     315.6     1.7     7.4     0.5
ZS 1  15:18:12   25    1.180     345.8     2.0    12.3     0.7
ZS 1  15:38:33   24    1.143     344.9     2.0    12.5     0.6
ZS 0  15:52:27   23    1.123     360.7     2.5    17.4     1.3
ZS 0  16:06:23   22    1.106     347.1     2.9    13.8     1.5
ZS 1  16:20:19   22    1.092     339.4     2.3    12.1     0.9
ZS 2  16:40:37   22    1.077     312.2     1.4     7.4     0.7
ZS 2  16:54:28   22    1.071     307.5     3.3     5.5     0.9
ZS 2  17:08:19   22    1.067     309.2     2.5     6.5     1.0
ZS 2  17:21:32   23    1.066     302.3     0.9     4.2     0.5
ZS 2  17:41:17   23    1.069     303.2     1.4     4.4     1.2
ZS 2  17:55:01   24    1.075     301.7     0.9     3.0     0.4
ZS 2  18:08:54   25    1.083     303.6     1.7     3.7     0.6
ZS 2  18:22:44   25    1.095     303.8     1.9     3.9     0.5

   DAILY MEANS   23    1.678     312.6             5.2
   STANDARD DEVIATION             18.0             5.1
                             29 / 29


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:19:59 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:19    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:51    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:42    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:33    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:24    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95
 12:31:46    24     61.350       2.062    1.9     296.0   1.0     101
 12:45:40    25     58.851       1.915    1.7     291.0   1.0      73
 12:59:41    26     56.336       1.790    1.9     305.0   1.0      76
 13:12:56    26     53.933       1.688    1.4     294.0   1.0      44
 13:33:15    25     50.271       1.557    1.3     299.0   1.0      35
 13:47:12    25     47.767       1.482    1.1     303.0   1.0      26
 14:01:07    25     45.281       1.416    1.2     311.0   1.0      26
 14:15:03    25     42.817       1.359    1.6     307.0   1.0      30
 14:40:23    25     38.420       1.274    2.0     310.0   1.0      33
 14:54:19    25     36.065       1.235    2.1     311.0   1.0      32
 15:08:18    25     33.776       1.201    1.5     316.0   1.0      22
 15:22:15    24     31.561       1.172    0.8     374.0   1.0      13
 15:42:35    23     28.519       1.137    0.7     371.0   1.0      11
 15:56:30    23     26.602       1.117    0.7     391.0   1.0      11
 16:10:27    22     24.859       1.101    0.9     374.0   1.0      12
 16:24:21    22     23.339       1.088    1.1     369.0   1.0      15
 16:44:35    22     21.606       1.075    3.9     310.0   1.0      42
 16:58:26    22     20.822       1.069    4.0     302.0   1.0      42
 17:12:19    22     20.408       1.066    4.1     314.0   1.0      45
 17:25:32    23     20.380       1.066    6.8     286.0   3.0      63
 17:45:15    24     21.004       1.071    6.0     297.0   1.0      63
 17:59:01    24     21.878       1.077    6.9     292.0   1.0      71
 18:12:52    25     23.074       1.086    5.7     294.0   1.0      60

DAILY MEANS  23                  2.226            314.2            52
STANDARD DEVIATION                                 28.8            28
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 18:25
SXCN10 CWTO 221930
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:59 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6
DS 4  12:37:30   24    1.999     291.7     1.3     2.1     0.5
DS 2  12:51:29   25    1.861     294.4     4.8     1.5     1.1
DS 0  13:39:03   25    1.524     296.6     3.4     4.8     1.7
DS 0  14:46:10   25    1.257     305.2     2.9     8.4     1.9
DS 2  17:50:58   24    1.073     299.6     0.4     1.3     0.3
DS 0  18:05:08   24    1.081     294.2     2.9     3.3     1.4
DS 4  18:38:56   26    1.112     293.5     1.5     1.6     0.3
DS 5  18:48:10   27    1.124     293.2     1.4     3.0     0.7
DS 3  18:57:29   27    1.137     300.1     1.9     2.1     0.3
DS 4  19:26:52   29    1.191     293.5     3.1     3.2     1.2

   DAILY MEANS   23    2.315     295.6             1.9
   STANDARD DEVIATION              3.8             2.5
                             18 / 18


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:19:59 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3
ZS 1  12:41:42   25    1.955     300.7     1.0    -0.8     0.5
ZS 1  12:55:40   25    1.824     297.2     1.0    -1.3     0.5
ZS 1  13:08:58   26    1.717     300.8     1.7    -1.2     0.4
ZS 1  13:29:18   26    1.580     304.3     1.9     1.3     0.5
ZS 1  13:43:14   25    1.502     307.4     2.0     2.0     0.5
ZS 1  13:57:10   25    1.434     315.4     1.6     4.4     0.7
ZS 1  14:11:05   25    1.375     309.4     2.6     2.5     1.0
ZS 1  14:31:26   25    1.301     323.3     3.1     8.1     0.6
ZS 1  14:50:21   25    1.245     311.3     2.1     5.1     0.5
ZS 1  15:04:16   25    1.210     315.6     1.7     7.4     0.5
ZS 1  15:18:12   25    1.180     345.8     2.0    12.3     0.7
ZS 1  15:38:33   24    1.143     344.9     2.0    12.5     0.6
ZS 0  15:52:27   23    1.123     360.7     2.5    17.4     1.3
ZS 0  16:06:23   22    1.106     347.1     2.9    13.8     1.5
ZS 1  16:20:19   22    1.092     339.4     2.3    12.1     0.9
ZS 2  16:40:37   22    1.077     312.2     1.4     7.4     0.7
ZS 2  16:54:28   22    1.071     307.5     3.3     5.5     0.9
ZS 2  17:08:19   22    1.067     309.2     2.5     6.5     1.0
ZS 2  17:21:32   23    1.066     302.3     0.9     4.2     0.5
ZS 2  17:41:17   23    1.069     303.2     1.4     4.4     1.2
ZS 2  17:55:01   24    1.075     301.7     0.9     3.0     0.4
ZS 2  18:08:54   25    1.083     303.6     1.7     3.7     0.6
ZS 2  18:22:44   25    1.095     303.8     1.9     3.9     0.5
ZS 2  19:10:42   28    1.159     301.1     2.0     3.7     0.6

   DAILY MEANS   23    1.661     312.3             5.1
   STANDARD DEVIATION             17.8             5.0
                             30 / 30


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:19:59 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:19    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:51    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:42    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:33    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:24    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95
 12:31:46    24     61.350       2.062    1.9     296.0   1.0     101
 12:45:40    25     58.851       1.915    1.7     291.0   1.0      73
 12:59:41    26     56.336       1.790    1.9     305.0   1.0      76
 13:12:56    26     53.933       1.688    1.4     294.0   1.0      44
 13:33:15    25     50.271       1.557    1.3     299.0   1.0      35
 13:47:12    25     47.767       1.482    1.1     303.0   1.0      26
 14:01:07    25     45.281       1.416    1.2     311.0   1.0      26
 14:15:03    25     42.817       1.359    1.6     307.0   1.0      30
 14:40:23    25     38.420       1.274    2.0     310.0   1.0      33
 14:54:19    25     36.065       1.235    2.1     311.0   1.0      32
 15:08:18    25     33.776       1.201    1.5     316.0   1.0      22
 15:22:15    24     31.561       1.172    0.8     374.0   1.0      13
 15:42:35    23     28.519       1.137    0.7     371.0   1.0      11
 15:56:30    23     26.602       1.117    0.7     391.0   1.0      11
 16:10:27    22     24.859       1.101    0.9     374.0   1.0      12
 16:24:21    22     23.339       1.088    1.1     369.0   1.0      15
 16:44:35    22     21.606       1.075    3.9     310.0   1.0      42
 16:58:26    22     20.822       1.069    4.0     302.0   1.0      42
 17:12:19    22     20.408       1.066    4.1     314.0   1.0      45
 17:25:32    23     20.380       1.066    6.8     286.0   3.0      63
 17:45:15    24     21.004       1.071    6.0     297.0   1.0      63
 17:59:01    24     21.878       1.077    6.9     292.0   1.0      71
 18:12:52    25     23.074       1.086    5.7     294.0   1.0      60
 18:26:42    25     24.539       1.099    8.8     307.0   2.0      98
 18:42:22    26     26.466       1.116    8.4     289.0   1.0      94
 18:51:37    27     27.713       1.129    8.3     265.0   2.0      82
 19:00:59    28     29.036       1.143    7.0     313.0   3.0      97
 19:14:44    28     31.096       1.166    6.4     327.0   2.0      91

DAILY MEANS  23                  2.074            312.2            57
STANDARD DEVIATION                                 28.3            30
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 19:30
SXCN10 CWTO 222030
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:00 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6
DS 4  12:37:30   24    1.999     291.7     1.3     2.1     0.5
DS 2  12:51:29   25    1.861     294.4     4.8     1.5     1.1
DS 0  13:39:03   25    1.524     296.6     3.4     4.8     1.7
DS 0  14:46:10   25    1.257     305.2     2.9     8.4     1.9
DS 2  17:50:58   24    1.073     299.6     0.4     1.3     0.3
DS 0  18:05:08   24    1.081     294.2     2.9     3.3     1.4
DS 4  18:38:56   26    1.112     293.5     1.5     1.6     0.3
DS 5  18:48:10   27    1.124     293.2     1.4     3.0     0.7
DS 3  18:57:29   27    1.137     300.1     1.9     2.1     0.3
DS 4  19:26:52   29    1.191     293.5     3.1     3.2     1.2
DS 3  19:40:43   30    1.223     303.9     3.2     2.0     0.6
DS 0  19:54:35   31    1.259     305.1     4.3     5.3     1.5
DS 4  20:08:27   31    1.302     295.5     1.8     2.2     0.5

   DAILY MEANS   24    2.164     296.4             2.1
   STANDARD DEVIATION              4.4             2.4
                             21 / 21


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:00 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3
ZS 1  12:41:42   25    1.955     300.7     1.0    -0.8     0.5
ZS 1  12:55:40   25    1.824     297.2     1.0    -1.3     0.5
ZS 1  13:08:58   26    1.717     300.8     1.7    -1.2     0.4
ZS 1  13:29:18   26    1.580     304.3     1.9     1.3     0.5
ZS 1  13:43:14   25    1.502     307.4     2.0     2.0     0.5
ZS 1  13:57:10   25    1.434     315.4     1.6     4.4     0.7
ZS 1  14:11:05   25    1.375     309.4     2.6     2.5     1.0
ZS 1  14:31:26   25    1.301     323.3     3.1     8.1     0.6
ZS 1  14:50:21   25    1.245     311.3     2.1     5.1     0.5
ZS 1  15:04:16   25    1.210     315.6     1.7     7.4     0.5
ZS 1  15:18:12   25    1.180     345.8     2.0    12.3     0.7
ZS 1  15:38:33   24    1.143     344.9     2.0    12.5     0.6
ZS 0  15:52:27   23    1.123     360.7     2.5    17.4     1.3
ZS 0  16:06:23   22    1.106     347.1     2.9    13.8     1.5
ZS 1  16:20:19   22    1.092     339.4     2.3    12.1     0.9
ZS 2  16:40:37   22    1.077     312.2     1.4     7.4     0.7
ZS 2  16:54:28   22    1.071     307.5     3.3     5.5     0.9
ZS 2  17:08:19   22    1.067     309.2     2.5     6.5     1.0
ZS 2  17:21:32   23    1.066     302.3     0.9     4.2     0.5
ZS 2  17:41:17   23    1.069     303.2     1.4     4.4     1.2
ZS 2  17:55:01   24    1.075     301.7     0.9     3.0     0.4
ZS 2  18:08:54   25    1.083     303.6     1.7     3.7     0.6
ZS 2  18:22:44   25    1.095     303.8     1.9     3.9     0.5
ZS 2  19:10:42   28    1.159     301.1     2.0     3.7     0.6
ZS 2  19:30:57   29    1.200     303.8     2.2     3.8     1.3
ZS 2  19:44:48   30    1.233     304.3     1.6     2.7     0.7
ZS 2  19:58:41   31    1.271     304.9     1.3     3.7     0.9
ZS 2  20:12:33   31    1.315     303.7     1.2     1.8     0.4

   DAILY MEANS   24    1.613     311.3             4.9
   STANDARD DEVIATION             16.9             4.8
                             34 / 34


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:20:00 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:20    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:52    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:43    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:34    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:25    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95
 12:31:46    24     61.350       2.062    1.9     296.0   1.0     101
 12:45:40    25     58.851       1.915    1.7     291.0   1.0      73
 12:59:42    26     56.336       1.790    1.9     305.0   1.0      76
 13:12:56    26     53.933       1.688    1.4     294.0   1.0      44
 13:33:15    25     50.271       1.557    1.3     299.0   1.0      35
 13:47:12    25     47.767       1.482    1.1     303.0   1.0      26
 14:01:07    25     45.281       1.416    1.2     311.0   1.0      26
 14:15:03    25     42.817       1.359    1.6     307.0   1.0      30
 14:40:23    25     38.420       1.274    2.0     310.0   1.0      33
 14:54:19    25     36.065       1.235    2.1     311.0   1.0      32
 15:08:19    25     33.776       1.201    1.5     316.0   1.0      22
 15:22:16    24     31.561       1.172    0.8     374.0   1.0      13
 15:42:36    23     28.519       1.137    0.7     371.0   1.0      11
 15:56:31    23     26.602       1.117    0.7     391.0   1.0      11
 16:10:28    22     24.859       1.101    0.9     374.0   1.0      12
 16:24:22    22     23.339       1.088    1.1     369.0   1.0      15
 16:44:35    22     21.606       1.075    3.9     310.0   1.0      42
 16:58:26    22     20.822       1.069    4.0     302.0   1.0      42
 17:12:19    22     20.408       1.066    4.1     314.0   1.0      45
 17:25:32    23     20.380       1.066    6.8     286.0   3.0      63
 17:45:15    24     21.004       1.071    6.0     297.0   1.0      63
 17:59:01    24     21.878       1.077    6.9     292.0   1.0      71
 18:12:52    25     23.074       1.086    5.7     294.0   1.0      60
 18:26:42    25     24.539       1.099    8.8     307.0   2.0      98
 18:42:22    26     26.466       1.116    8.4     289.0   1.0      94
 18:51:37    27     27.713       1.129    8.3     265.0   2.0      82
 19:01:00    28     29.036       1.143    7.0     313.0   3.0      97
 19:14:45    28     31.096       1.166    6.4     327.0   2.0      91
 19:34:55    30     34.315       1.209    6.7     298.0   2.0      94
 19:48:47    30     36.612       1.243    4.0     285.0   1.0      56
 20:02:44    31     38.968       1.283    3.4     307.0   1.0      56
 20:16:32    31     41.371       1.329    3.3     283.0   1.0      55

DAILY MEANS  24                  1.993            310.4            58
STANDARD DEVIATION                                 27.6            29
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 20:29
SXCN10 CWTO 222130
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:01 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6
DS 4  12:37:30   24    1.999     291.7     1.3     2.1     0.5
DS 2  12:51:29   25    1.861     294.4     4.8     1.5     1.1
DS 0  13:39:03   25    1.524     296.6     3.4     4.8     1.7
DS 0  14:46:10   25    1.257     305.2     2.9     8.4     1.9
DS 2  17:50:58   24    1.073     299.6     0.4     1.3     0.3
DS 0  18:05:08   24    1.081     294.2     2.9     3.3     1.4
DS 4  18:38:56   26    1.112     293.5     1.5     1.6     0.3
DS 5  18:48:10   27    1.124     293.2     1.4     3.0     0.7
DS 3  18:57:29   27    1.137     300.1     1.9     2.1     0.3
DS 4  19:26:52   29    1.191     293.5     3.1     3.2     1.2
DS 3  19:40:43   30    1.223     303.9     3.2     2.0     0.6
DS 0  19:54:35   31    1.259     305.1     4.3     5.3     1.5
DS 4  20:08:27   31    1.302     295.5     1.8     2.2     0.5
DS 0  20:28:45   31    1.375     300.6     2.8     6.8     0.6
DS 0  20:47:43   31    1.457     294.1     1.7     4.8     2.3

   DAILY MEANS   25    2.099     296.5             2.4
   STANDARD DEVIATION              4.4             2.6
                             23 / 23


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:01 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3
ZS 1  12:41:42   25    1.955     300.7     1.0    -0.8     0.5
ZS 1  12:55:40   25    1.824     297.2     1.0    -1.3     0.5
ZS 1  13:08:58   26    1.717     300.8     1.7    -1.2     0.4
ZS 1  13:29:18   26    1.580     304.3     1.9     1.3     0.5
ZS 1  13:43:14   25    1.502     307.4     2.0     2.0     0.5
ZS 1  13:57:10   25    1.434     315.4     1.6     4.4     0.7
ZS 1  14:11:05   25    1.375     309.4     2.6     2.5     1.0
ZS 1  14:31:26   25    1.301     323.3     3.1     8.1     0.6
ZS 1  14:50:21   25    1.245     311.3     2.1     5.1     0.5
ZS 1  15:04:16   25    1.210     315.6     1.7     7.4     0.5
ZS 1  15:18:12   25    1.180     345.8     2.0    12.3     0.7
ZS 1  15:38:33   24    1.143     344.9     2.0    12.5     0.6
ZS 0  15:52:27   23    1.123     360.7     2.5    17.4     1.3
ZS 0  16:06:23   22    1.106     347.1     2.9    13.8     1.5
ZS 1  16:20:19   22    1.092     339.4     2.3    12.1     0.9
ZS 2  16:40:37   22    1.077     312.2     1.4     7.4     0.7
ZS 2  16:54:28   22    1.071     307.5     3.3     5.5     0.9
ZS 2  17:08:19   22    1.067     309.2     2.5     6.5     1.0
ZS 2  17:21:32   23    1.066     302.3     0.9     4.2     0.5
ZS 2  17:41:17   23    1.069     303.2     1.4     4.4     1.2
ZS 2  17:55:01   24    1.075     301.7     0.9     3.0     0.4
ZS 2  18:08:54   25    1.083     303.6     1.7     3.7     0.6
ZS 2  18:22:44   25    1.095     303.8     1.9     3.9     0.5
ZS 2  19:10:42   28    1.159     301.1     2.0     3.7     0.6
ZS 2  19:30:57   29    1.200     303.8     2.2     3.8     1.3
ZS 2  19:44:48   30    1.233     304.3     1.6     2.7     0.7
ZS 2  19:58:41   31    1.271     304.9     1.3     3.7     0.9
ZS 2  20:12:33   31    1.315     303.7     1.2     1.8     0.4
ZS 1  20:32:56   31    1.392     305.1     1.9     2.4     0.4
ZS 2  20:51:49   31    1.477     304.7     2.2     1.3     1.0
ZS 1  21:05:42   30    1.552     305.7     1.9     1.0     0.5
ZS 1  21:19:40   30    1.638     305.8     2.2     0.3     0.7

   DAILY MEANS   25    1.603     310.7             4.5
   STANDARD DEVIATION             16.0             4.6
                             38 / 38


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:20:01 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:21    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:53    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:44    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:35    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:26    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95
 12:31:46    24     61.350       2.062    1.9     296.0   1.0     101
 12:45:40    25     58.851       1.915    1.7     291.0   1.0      73
 12:59:43    26     56.336       1.790    1.9     305.0   1.0      76
 13:12:56    26     53.933       1.688    1.4     294.0   1.0      44
 13:33:15    25     50.271       1.557    1.3     299.0   1.0      35
 13:47:12    25     47.767       1.482    1.1     303.0   1.0      26
 14:01:07    25     45.281       1.416    1.2     311.0   1.0      26
 14:15:03    25     42.817       1.359    1.6     307.0   1.0      30
 14:40:23    25     38.420       1.274    2.0     310.0   1.0      33
 14:54:19    25     36.065       1.235    2.1     311.0   1.0      32
 15:08:20    25     33.776       1.201    1.5     316.0   1.0      22
 15:22:17    24     31.561       1.172    0.8     374.0   1.0      13
 15:42:37    23     28.519       1.137    0.7     371.0   1.0      11
 15:56:32    23     26.602       1.117    0.7     391.0   1.0      11
 16:10:29    22     24.859       1.101    0.9     374.0   1.0      12
 16:24:23    22     23.339       1.088    1.1     369.0   1.0      15
 16:44:35    22     21.606       1.075    3.9     310.0   1.0      42
 16:58:26    22     20.822       1.069    4.0     302.0   1.0      42
 17:12:19    22     20.408       1.066    4.1     314.0   1.0      45
 17:25:32    23     20.380       1.066    6.8     286.0   3.0      63
 17:45:15    24     21.004       1.071    6.0     297.0   1.0      63
 17:59:01    24     21.878       1.077    6.9     292.0   1.0      71
 18:12:52    25     23.074       1.086    5.7     294.0   1.0      60
 18:26:42    25     24.539       1.099    8.8     307.0   2.0      98
 18:42:22    26     26.466       1.116    8.4     289.0   1.0      94
 18:51:37    27     27.713       1.129    8.3     265.0   2.0      82
 19:01:01    28     29.036       1.143    7.0     313.0   3.0      97
 19:14:46    28     31.096       1.166    6.4     327.0   2.0      91
 19:34:55    30     34.315       1.209    6.7     298.0   2.0      94
 19:48:47    30     36.612       1.243    4.0     285.0   1.0      56
 20:02:45    31     38.968       1.283    3.4     307.0   1.0      56
 20:16:32    31     41.371       1.329    3.3     283.0   1.0      55
 20:41:54    30     45.847       1.430    1.8     289.0   1.0      36
 20:55:49    30     48.317       1.497    0.4     547.0  21.0      18
 21:09:41    30     50.826       1.575    1.0     303.0   1.0      29
 21:23:37    30     53.341       1.665    0.9     298.0   1.0      28

DAILY MEANS  24                  1.952            314.8            55
STANDARD DEVIATION                                 44.6            29
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 21:30
SXCN10 CWTO 222230
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:01 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:32   17    5.835     287.1     4.1    -4.6     3.3
DS 0  10:50:23   17    4.837     296.1     1.2    -0.3     1.7
DS 0  11:04:14   18    4.105     295.5     1.4     0.9     0.4
DS 2  11:24:33   19    3.342     295.7     1.1     1.5     0.4
DS 3  11:38:28   20    2.959     296.4     1.3     1.8     0.4
DS 3  11:52:19   21    2.656     297.9     1.5     1.0     0.6
DS 3  12:06:11   22    2.410     296.6     1.4     1.5     0.4
DS 4  12:23:39   23    2.160     292.9     1.3     1.7     0.6
DS 4  12:37:30   24    1.999     291.7     1.3     2.1     0.5
DS 2  12:51:29   25    1.861     294.4     4.8     1.5     1.1
DS 0  13:39:03   25    1.524     296.6     3.4     4.8     1.7
DS 0  14:46:10   25    1.257     305.2     2.9     8.4     1.9
DS 2  17:50:58   24    1.073     299.6     0.4     1.3     0.3
DS 0  18:05:08   24    1.081     294.2     2.9     3.3     1.4
DS 4  18:38:56   26    1.112     293.5     1.5     1.6     0.3
DS 5  18:48:10   27    1.124     293.2     1.4     3.0     0.7
DS 3  18:57:29   27    1.137     300.1     1.9     2.1     0.3
DS 4  19:26:52   29    1.191     293.5     3.1     3.2     1.2
DS 3  19:40:43   30    1.223     303.9     3.2     2.0     0.6
DS 0  19:54:35   31    1.259     305.1     4.3     5.3     1.5
DS 4  20:08:27   31    1.302     295.5     1.8     2.2     0.5
DS 0  20:28:45   31    1.375     300.6     2.8     6.8     0.6
DS 0  20:47:43   31    1.457     294.1     1.7     4.8     2.3
DS 0  21:35:47   30    1.754     289.7     3.5     4.9     1.4
DS 0  21:49:45   30    1.874     295.8     1.6     2.0     0.7

   DAILY MEANS   25    2.076     296.2             2.5
   STANDARD DEVIATION              4.4             2.5
                             25 / 25


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-22
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:01 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:31   17    4.595     314.7     3.2    12.3     0.7
ZS 0  11:08:21   18    3.925     309.5     2.1     5.0     0.7
ZS 0  11:28:41   19    3.218     294.4     1.5     1.1     0.4
ZS 0  11:42:36   20    2.862     294.3     1.6    -0.2     0.4
ZS 0  11:56:28   21    2.577     294.3     1.3    -1.0     0.4
ZS 0  12:27:47   23    2.109     292.8     0.8    -0.7     0.3
ZS 1  12:41:42   25    1.955     300.7     1.0    -0.8     0.5
ZS 1  12:55:40   25    1.824     297.2     1.0    -1.3     0.5
ZS 1  13:08:58   26    1.717     300.8     1.7    -1.2     0.4
ZS 1  13:29:18   26    1.580     304.3     1.9     1.3     0.5
ZS 1  13:43:14   25    1.502     307.4     2.0     2.0     0.5
ZS 1  13:57:10   25    1.434     315.4     1.6     4.4     0.7
ZS 1  14:11:05   25    1.375     309.4     2.6     2.5     1.0
ZS 1  14:31:26   25    1.301     323.3     3.1     8.1     0.6
ZS 1  14:50:21   25    1.245     311.3     2.1     5.1     0.5
ZS 1  15:04:16   25    1.210     315.6     1.7     7.4     0.5
ZS 1  15:18:12   25    1.180     345.8     2.0    12.3     0.7
ZS 1  15:38:33   24    1.143     344.9     2.0    12.5     0.6
ZS 0  15:52:27   23    1.123     360.7     2.5    17.4     1.3
ZS 0  16:06:23   22    1.106     347.1     2.9    13.8     1.5
ZS 1  16:20:19   22    1.092     339.4     2.3    12.1     0.9
ZS 2  16:40:37   22    1.077     312.2     1.4     7.4     0.7
ZS 2  16:54:28   22    1.071     307.5     3.3     5.5     0.9
ZS 2  17:08:19   22    1.067     309.2     2.5     6.5     1.0
ZS 2  17:21:32   23    1.066     302.3     0.9     4.2     0.5
ZS 2  17:41:17   23    1.069     303.2     1.4     4.4     1.2
ZS 2  17:55:01   24    1.075     301.7     0.9     3.0     0.4
ZS 2  18:08:54   25    1.083     303.6     1.7     3.7     0.6
ZS 2  18:22:44   25    1.095     303.8     1.9     3.9     0.5
ZS 2  19:10:42   28    1.159     301.1     2.0     3.7     0.6
ZS 2  19:30:57   29    1.200     303.8     2.2     3.8     1.3
ZS 2  19:44:48   30    1.233     304.3     1.6     2.7     0.7
ZS 2  19:58:41   31    1.271     304.9     1.3     3.7     0.9
ZS 2  20:12:33   31    1.315     303.7     1.2     1.8     0.4
ZS 1  20:32:56   31    1.392     305.1     1.9     2.4     0.4
ZS 2  20:51:49   31    1.477     304.7     2.2     1.3     1.0
ZS 1  21:05:42   30    1.552     305.7     1.9     1.0     0.5
ZS 1  21:19:40   30    1.638     305.8     2.2     0.3     0.7
ZS 1  21:39:59   30    1.788     303.9     1.6    -1.2     0.5
ZS 1  21:53:56   30    1.913     306.5     0.8    -2.0     0.3
ZS 1  22:07:50   30    2.059     307.3     1.4    -1.8     0.5
ZS 1  22:21:38   30    2.232     307.5     1.8    -1.5     0.5

   DAILY MEANS   25    1.641     310.3             3.9
   STANDARD DEVIATION             15.3             4.8
                             42 / 42


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-22
     LOCAL SOLAR NOON = 17:20:01 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:21    16     87.629      10.804    0.0     288.0   3.0      84
 10:30:53    16     82.285       6.354    0.1     309.0   4.0      75
 10:44:44    17     80.003       5.213    0.1     316.0   3.0      65
 10:58:35    18     77.684       4.383    0.3     313.0   2.0      81
 11:12:26    18     75.330       3.765    0.4     293.0   2.0      77
 11:32:39    19     71.824       3.108    0.6     301.0   1.0      88
 11:46:35    20     69.387       2.774    0.8     301.0   1.0      88
 12:00:26    22     66.944       2.506    1.1     302.0   1.0      95
 12:31:46    24     61.350       2.062    1.9     296.0   1.0     101
 12:45:40    25     58.851       1.915    1.7     291.0   1.0      73
 12:59:43    26     56.336       1.790    1.9     305.0   1.0      76
 13:12:56    26     53.933       1.688    1.4     294.0   1.0      44
 13:33:15    25     50.271       1.557    1.3     299.0   1.0      35
 13:47:12    25     47.767       1.482    1.1     303.0   1.0      26
 14:01:07    25     45.281       1.416    1.2     311.0   1.0      26
 14:15:03    25     42.817       1.359    1.6     307.0   1.0      30
 14:40:23    25     38.420       1.274    2.0     310.0   1.0      33
 14:54:19    25     36.065       1.235    2.1     311.0   1.0      32
 15:08:20    25     33.776       1.201    1.5     316.0   1.0      22
 15:22:17    24     31.561       1.172    0.8     374.0   1.0      13
 15:42:37    23     28.519       1.137    0.7     371.0   1.0      11
 15:56:32    23     26.602       1.117    0.7     391.0   1.0      11
 16:10:29    22     24.859       1.101    0.9     374.0   1.0      12
 16:24:23    22     23.339       1.088    1.1     369.0   1.0      15
 16:44:35    22     21.606       1.075    3.9     310.0   1.0      42
 16:58:26    22     20.822       1.069    4.0     302.0   1.0      42
 17:12:19    22     20.408       1.066    4.1     314.0   1.0      45
 17:25:32    23     20.380       1.066    6.8     286.0   3.0      63
 17:45:15    24     21.004       1.071    6.0     297.0   1.0      63
 17:59:01    24     21.878       1.077    6.9     292.0   1.0      71
 18:12:52    25     23.074       1.086    5.7     294.0   1.0      60
 18:26:42    25     24.539       1.099    8.8     307.0   2.0      98
 18:42:22    26     26.466       1.116    8.4     289.0   1.0      94
 18:51:37    27     27.713       1.129    8.3     265.0   2.0      82
 19:01:01    28     29.036       1.143    7.0     313.0   3.0      97
 19:14:46    28     31.096       1.166    6.4     327.0   2.0      91
 19:34:55    30     34.315       1.209    6.7     298.0   2.0      94
 19:48:47    30     36.612       1.243    4.0     285.0   1.0      56
 20:02:45    31     38.968       1.283    3.4     307.0   1.0      56
 20:16:32    31     41.371       1.329    3.3     283.0   1.0      55
 20:41:54    30     45.847       1.430    1.8     289.0   1.0      36
 20:55:49    30     48.317       1.497    0.4     547.0  21.0      18
 21:09:41    30     50.826       1.575    1.0     303.0   1.0      29
 21:23:37    30     53.341       1.665    0.9     298.0   1.0      28
 21:43:57    30     57.010       1.822    1.4     291.0   1.0      55
 21:57:55    30     59.526       1.953    1.3     292.0   1.0      57
 22:11:47    30     62.017       2.106    0.7     292.0   1.0      38
 22:25:36    29     64.488       2.288    0.7     304.0   1.0      48

DAILY MEANS  25                  1.960            313.1            55
STANDARD DEVIATION                                 43.1            28
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170622 22:29
SXCN10 CWTO 230030
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170623 00:29
SXCN10 CWTO 230130
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170623 01:27
SXCN10 CWTO 230230
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170623 02:23
SXCN10 CWTO 230330
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170623 03:29
SXCN10 CWTO 230430
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17317.145
LATEST B-FILE TIMESTAMP:  20170623 04:24
SXCN10 CWTO 230530
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 05:26
SXCN10 CWTO 230630
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 06:29
SXCN10 CWTO 230730
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 07:29
SXCN10 CWTO 230830
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 08:28
SXCN10 CWTO 230930
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 09:19
SXCN10 CWTO 231030


    ***      INSUFFICIENT DATA TO CALCULATE      ***
    ***  STATISTICS FOR THIS DAY'S OBSERVATIONS. ***


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:07 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:57:59    23     87.556      10.737    0.0     306.0   9.0      26

DAILY MEANS  23                 10.737            306.0            26
STANDARD DEVIATION                                  0.0             0
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 10:29
SXCN10 CWTO 231130
PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:08 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7

   DAILY MEANS   24    4.046     299.3            12.5
   STANDARD DEVIATION              2.3             2.7
                             3 / 3


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:08 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:00    23     87.556      10.737    0.0     306.0   9.0      26
 10:32:58    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:13    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:27    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:42    24     74.283       3.541    0.0     305.0   3.0       2

DAILY MEANS  24                  5.919            335.8            18
STANDARD DEVIATION                                 29.0            15
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 11:29
SXCN10 CWTO 231230
PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:09 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6

   DAILY MEANS   24    3.156     297.2             6.1
   STANDARD DEVIATION              2.5             5.3
                             9 / 9


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:09 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:01    23     87.556      10.737    0.0     306.0   9.0      26
 10:32:59    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:14    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:28    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:43    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:15    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:29    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:17    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:05    23     62.956       2.171    0.1     314.0   1.0       9

DAILY MEANS  24                  4.406            323.3            18
STANDARD DEVIATION                                 26.2            11
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 12:29
SXCN10 CWTO 231330
PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:09 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6
ZS 0  12:39:14   23    1.983     294.6     0.8     1.1     0.4
ZS 0  12:53:12   23    1.848     306.3     2.1     3.8     0.4
ZS 1  13:07:11   23    1.732     298.2     1.6    -0.1     0.6

   DAILY MEANS   24    2.831     297.9             4.9
   STANDARD DEVIATION              3.5             5.0
                             12 / 12


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:09 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:01    23     87.556      10.737    0.0     306.0   9.0      26
 10:32:59    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:14    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:28    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:43    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:15    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:29    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:17    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:05    23     62.956       2.171    0.1     314.0   1.0       9
 12:43:13    23     59.341       1.942    0.4     301.0   2.0      20
 12:57:12    23     56.822       1.813    0.5     322.0   2.0      21
 13:11:09    23     54.301       1.702    1.0     284.0   1.0      32
 13:25:06    23     51.785       1.608    1.0     292.0   1.0      29

DAILY MEANS  23                  3.594            316.1            21
STANDARD DEVIATION                                 25.5            10
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 13:28
SXCN10 CWTO 231430
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:10 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  14:04:30   24    1.403     291.1     5.0     8.4     1.5
DS 0  14:18:21   24    1.348     295.5     2.8     7.3     1.9

   DAILY MEANS   24    1.376     293.3             7.8
   STANDARD DEVIATION              3.1             0.8
                             2 / 2


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:10 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6
ZS 0  12:39:14   23    1.983     294.6     0.8     1.1     0.4
ZS 0  12:53:12   23    1.848     306.3     2.1     3.8     0.4
ZS 1  13:07:11   23    1.732     298.2     1.6    -0.1     0.6
ZS 1  13:41:27   23    1.513     300.2     1.3     2.3     0.8
ZS 1  13:54:45   24    1.446     294.8     1.5     1.3     0.5
ZS 2  14:08:36   24    1.386     296.6     2.3     2.2     1.1
ZS 1  14:22:32   24    1.333     301.9     2.7     5.3     0.9

   DAILY MEANS   24    2.478     298.0             4.4
   STANDARD DEVIATION              3.3             4.5
                             16 / 16


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:10 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:02    23     87.556      10.737    0.0     306.0   9.0      26
 10:33:00    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:15    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:29    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:44    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:16    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:30    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:18    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:06    23     62.956       2.171    0.1     314.0   1.0       9
 12:43:14    23     59.341       1.942    0.4     301.0   2.0      20
 12:57:13    23     56.822       1.813    0.5     322.0   2.0      21
 13:11:09    23     54.301       1.702    1.0     284.0   1.0      32
 13:25:06    23     51.785       1.608    1.0     292.0   1.0      29
 13:45:25    23     48.133       1.492    1.7     287.0   1.0      39
 13:58:43    24     45.758       1.428    2.0     288.0   1.0      40
 14:12:35    24     43.298       1.370    2.6     283.0   1.0      47

DAILY MEANS  23                  3.188            310.4            25
STANDARD DEVIATION                                 25.9            13
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 14:25
SXCN10 CWTO 231530
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:10 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  14:04:30   24    1.403     291.1     5.0     8.4     1.5
DS 0  14:18:21   24    1.348     295.5     2.8     7.3     1.9
DS 0  14:38:42   24    1.279     297.5     3.1    10.9     1.5
DS 0  14:57:39   24    1.227     295.6     3.1     8.8     1.5

   DAILY MEANS   24    1.314     294.9             8.9
   STANDARD DEVIATION              2.7             1.5
                             4 / 4


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:10 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6
ZS 0  12:39:14   23    1.983     294.6     0.8     1.1     0.4
ZS 0  12:53:12   23    1.848     306.3     2.1     3.8     0.4
ZS 1  13:07:11   23    1.732     298.2     1.6    -0.1     0.6
ZS 1  13:41:27   23    1.513     300.2     1.3     2.3     0.8
ZS 1  13:54:45   24    1.446     294.8     1.5     1.3     0.5
ZS 2  14:08:36   24    1.386     296.6     2.3     2.2     1.1
ZS 1  14:22:32   24    1.333     301.9     2.7     5.3     0.9
ZS 1  14:42:52   24    1.267     297.2     0.6     4.5     0.5
ZS 1  15:01:48   24    1.217     295.6     1.8     6.0     0.6
ZS 1  15:15:43   24    1.186     302.5     2.8     8.5     0.7

   DAILY MEANS   24    2.280     298.1             4.7
   STANDARD DEVIATION              3.3             4.2
                             19 / 19


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:10 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:02    23     87.556      10.737    0.0     306.0   9.0      26
 10:33:00    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:15    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:29    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:44    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:16    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:30    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:18    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:06    23     62.956       2.171    0.1     314.0   1.0       9
 12:43:14    23     59.341       1.942    0.4     301.0   2.0      20
 12:57:13    23     56.822       1.813    0.5     322.0   2.0      21
 13:11:09    23     54.301       1.702    1.0     284.0   1.0      32
 13:25:06    23     51.785       1.608    1.0     292.0   1.0      29
 13:45:25    23     48.133       1.492    1.7     287.0   1.0      39
 13:58:43    24     45.758       1.428    2.0     288.0   1.0      40
 14:12:35    24     43.298       1.370    2.6     283.0   1.0      47
 14:26:32    24     40.860       1.319    1.0     311.0   1.0      18
 14:51:53    24     36.523       1.242    1.6     297.0   1.0      24
 15:05:47    24     34.219       1.207    2.1     283.0   1.0      28
 15:19:43    24     31.995       1.178    1.3     303.0   1.0      18

DAILY MEANS  24                  2.798            308.1            24
STANDARD DEVIATION                                 24.0            11
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 15:29
SXCN10 CWTO 231630
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:11 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  14:04:30   24    1.403     291.1     5.0     8.4     1.5
DS 0  14:18:21   24    1.348     295.5     2.8     7.3     1.9
DS 0  14:38:42   24    1.279     297.5     3.1    10.9     1.5
DS 0  14:57:39   24    1.227     295.6     3.1     8.8     1.5
DS 0  15:59:41   24    1.114     326.8     2.2    14.6     3.6
DS 0  16:13:36   24    1.098     319.9     3.2    11.8     1.1

   DAILY MEANS   24    1.245     304.4            10.3
   STANDARD DEVIATION             15.0             2.7
                             6 / 6


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:11 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6
ZS 0  12:39:14   23    1.983     294.6     0.8     1.1     0.4
ZS 0  12:53:12   23    1.848     306.3     2.1     3.8     0.4
ZS 1  13:07:11   23    1.732     298.2     1.6    -0.1     0.6
ZS 1  13:41:27   23    1.513     300.2     1.3     2.3     0.8
ZS 1  13:54:45   24    1.446     294.8     1.5     1.3     0.5
ZS 2  14:08:36   24    1.386     296.6     2.3     2.2     1.1
ZS 1  14:22:32   24    1.333     301.9     2.7     5.3     0.9
ZS 1  14:42:52   24    1.267     297.2     0.6     4.5     0.5
ZS 1  15:01:48   24    1.217     295.6     1.8     6.0     0.6
ZS 1  15:15:43   24    1.186     302.5     2.8     8.5     0.7
ZS 1  15:29:37   24    1.159     312.2     2.0    11.3     0.5
ZS 1  15:49:57   24    1.127     327.0     2.7    16.1     0.8
ZS 1  16:03:51   24    1.109     320.6     2.6    11.8     0.8
ZS 2  16:17:41   24    1.094     319.7     2.4    10.4     1.1

   DAILY MEANS   24    2.078     301.9             6.0
   STANDARD DEVIATION              9.2             4.9
                             23 / 23


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:11 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:03    23     87.556      10.737    0.0     306.0   9.0      26
 10:33:01    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:16    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:30    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:45    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:17    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:31    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:19    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:07    23     62.956       2.171    0.1     314.0   1.0       9
 12:43:15    23     59.341       1.942    0.4     301.0   2.0      20
 12:57:14    23     56.822       1.813    0.5     322.0   2.0      21
 13:11:09    23     54.301       1.702    1.0     284.0   1.0      32
 13:25:06    23     51.785       1.608    1.0     292.0   1.0      29
 13:45:25    23     48.133       1.492    1.7     287.0   1.0      39
 13:58:43    24     45.758       1.428    2.0     288.0   1.0      40
 14:12:35    24     43.298       1.370    2.6     283.0   1.0      47
 14:26:33    24     40.860       1.319    1.0     311.0   1.0      18
 14:51:54    24     36.523       1.242    1.6     297.0   1.0      24
 15:05:47    24     34.219       1.207    2.1     283.0   1.0      28
 15:19:44    24     31.995       1.178    1.3     303.0   1.0      18
 15:33:38    24     29.867       1.152    1.3     317.0   1.0      16
 15:53:59    24     26.977       1.121    1.1     340.0   1.0      14
 16:07:52    24     25.203       1.104    1.8     331.0   1.0      22
 16:21:43    24     23.641       1.091    3.0     355.0   2.0      41

DAILY MEANS  24                  2.518            312.7            24
STANDARD DEVIATION                                 24.9            11
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 16:30
SXCN10 CWTO 231730
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:11 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  14:04:30   24    1.403     291.1     5.0     8.4     1.5
DS 0  14:18:21   24    1.348     295.5     2.8     7.3     1.9
DS 0  14:38:42   24    1.279     297.5     3.1    10.9     1.5
DS 0  14:57:39   24    1.227     295.6     3.1     8.8     1.5
DS 0  15:59:41   24    1.114     326.8     2.2    14.6     3.6
DS 0  16:13:36   24    1.098     319.9     3.2    11.8     1.1

   DAILY MEANS   24    1.245     304.4            10.3
   STANDARD DEVIATION             15.0             2.7
                             6 / 6


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:11 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6
ZS 0  12:39:14   23    1.983     294.6     0.8     1.1     0.4
ZS 0  12:53:12   23    1.848     306.3     2.1     3.8     0.4
ZS 1  13:07:11   23    1.732     298.2     1.6    -0.1     0.6
ZS 1  13:41:27   23    1.513     300.2     1.3     2.3     0.8
ZS 1  13:54:45   24    1.446     294.8     1.5     1.3     0.5
ZS 2  14:08:36   24    1.386     296.6     2.3     2.2     1.1
ZS 1  14:22:32   24    1.333     301.9     2.7     5.3     0.9
ZS 1  14:42:52   24    1.267     297.2     0.6     4.5     0.5
ZS 1  15:01:48   24    1.217     295.6     1.8     6.0     0.6
ZS 1  15:15:43   24    1.186     302.5     2.8     8.5     0.7
ZS 1  15:29:37   24    1.159     312.2     2.0    11.3     0.5
ZS 1  15:49:57   24    1.127     327.0     2.7    16.1     0.8
ZS 1  16:03:51   24    1.109     320.6     2.6    11.8     0.8
ZS 2  16:17:41   24    1.094     319.7     2.4    10.4     1.1
ZS 2  16:31:33   24    1.083     314.6     1.7     8.4     1.1
ZS 1  16:52:03   24    1.072     317.4     1.5     7.6     0.8
ZS 2  17:05:47   25    1.068     299.2     2.2     4.8     0.6
ZS 2  17:19:38   26    1.066     311.9     3.9    10.1     1.3

   DAILY MEANS   24    1.929     303.2             6.3
   STANDARD DEVIATION              9.5             4.6
                             27 / 27


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:11 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:03    23     87.556      10.737    0.0     306.0   9.0      26
 10:33:01    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:16    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:30    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:45    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:17    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:31    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:19    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:07    23     62.956       2.171    0.1     314.0   1.0       9
 12:43:15    23     59.341       1.942    0.4     301.0   2.0      20
 12:57:14    23     56.822       1.813    0.5     322.0   2.0      21
 13:11:09    23     54.301       1.702    1.0     284.0   1.0      32
 13:25:06    23     51.785       1.608    1.0     292.0   1.0      29
 13:45:25    23     48.133       1.492    1.7     287.0   1.0      39
 13:58:43    24     45.758       1.428    2.0     288.0   1.0      40
 14:12:35    24     43.298       1.370    2.6     283.0   1.0      47
 14:26:33    24     40.860       1.319    1.0     311.0   1.0      18
 14:51:54    24     36.523       1.242    1.6     297.0   1.0      24
 15:05:47    24     34.219       1.207    2.1     283.0   1.0      28
 15:19:44    24     31.995       1.178    1.3     303.0   1.0      18
 15:33:38    24     29.867       1.152    1.3     317.0   1.0      16
 15:53:59    24     26.977       1.121    1.1     340.0   1.0      14
 16:07:52    24     25.203       1.104    1.8     331.0   1.0      22
 16:21:43    24     23.641       1.091    3.0     355.0   2.0      41
 16:35:31    24     22.332       1.080    3.4     314.0   1.0      39
 16:55:55    24     20.962       1.070    6.4     294.0   2.0      64
 17:09:46    25     20.473       1.067    6.2     287.0   1.0      59
 17:23:37    26     20.374       1.066    2.6     315.0   1.0      29

DAILY MEANS  24                  2.311            311.2            27
STANDARD DEVIATION                                 23.7            15
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 17:29
SXCN10 CWTO 231830
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:12 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  14:04:30   24    1.403     291.1     5.0     8.4     1.5
DS 0  14:18:21   24    1.348     295.5     2.8     7.3     1.9
DS 0  14:38:42   24    1.279     297.5     3.1    10.9     1.5
DS 0  14:57:39   24    1.227     295.6     3.1     8.8     1.5
DS 0  15:59:41   24    1.114     326.8     2.2    14.6     3.6
DS 0  16:13:36   24    1.098     319.9     3.2    11.8     1.1
DS 0  17:29:24   27    1.067     304.3     4.0     8.7     1.2
DS 3  18:17:23   28    1.090     294.2     3.3     1.6     1.0

   DAILY MEANS   25    1.203     303.1             9.0
   STANDARD DEVIATION             13.2             3.8
                             8 / 8


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:12 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6
ZS 0  12:39:14   23    1.983     294.6     0.8     1.1     0.4
ZS 0  12:53:12   23    1.848     306.3     2.1     3.8     0.4
ZS 1  13:07:11   23    1.732     298.2     1.6    -0.1     0.6
ZS 1  13:41:27   23    1.513     300.2     1.3     2.3     0.8
ZS 1  13:54:45   24    1.446     294.8     1.5     1.3     0.5
ZS 2  14:08:36   24    1.386     296.6     2.3     2.2     1.1
ZS 1  14:22:32   24    1.333     301.9     2.7     5.3     0.9
ZS 1  14:42:52   24    1.267     297.2     0.6     4.5     0.5
ZS 1  15:01:48   24    1.217     295.6     1.8     6.0     0.6
ZS 1  15:15:43   24    1.186     302.5     2.8     8.5     0.7
ZS 1  15:29:37   24    1.159     312.2     2.0    11.3     0.5
ZS 1  15:49:57   24    1.127     327.0     2.7    16.1     0.8
ZS 1  16:03:51   24    1.109     320.6     2.6    11.8     0.8
ZS 2  16:17:41   24    1.094     319.7     2.4    10.4     1.1
ZS 2  16:31:33   24    1.083     314.6     1.7     8.4     1.1
ZS 1  16:52:03   24    1.072     317.4     1.5     7.6     0.8
ZS 2  17:05:47   25    1.068     299.2     2.2     4.8     0.6
ZS 2  17:19:38   26    1.066     311.9     3.9    10.1     1.3
ZS 2  17:33:29   27    1.067     301.0     2.0     6.3     0.5
ZS 2  17:53:48   27    1.074     310.5     2.7     7.4     0.8
ZS 2  18:07:38   28    1.082     302.4     2.9     5.7     1.4

   DAILY MEANS   24    1.844     303.3             6.3
   STANDARD DEVIATION              9.1             4.4
                             30 / 30


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:12 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:04    23     87.556      10.737    0.0     306.0   9.0      26
 10:33:02    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:17    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:31    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:46    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:18    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:32    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:20    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:08    23     62.956       2.171    0.1     314.0   1.0       9
 12:43:16    23     59.341       1.942    0.4     301.0   2.0      20
 12:57:15    23     56.822       1.813    0.5     322.0   2.0      21
 13:11:09    23     54.301       1.702    1.0     284.0   1.0      32
 13:25:06    23     51.785       1.608    1.0     292.0   1.0      29
 13:45:25    23     48.133       1.492    1.7     287.0   1.0      39
 13:58:43    24     45.758       1.428    2.0     288.0   1.0      40
 14:12:35    24     43.298       1.370    2.6     283.0   1.0      47
 14:26:34    24     40.860       1.319    1.0     311.0   1.0      18
 14:51:55    24     36.523       1.242    1.6     297.0   1.0      24
 15:05:47    24     34.219       1.207    2.1     283.0   1.0      28
 15:19:45    24     31.995       1.178    1.3     303.0   1.0      18
 15:33:39    24     29.867       1.152    1.3     317.0   1.0      16
 15:54:00    24     26.977       1.121    1.1     340.0   1.0      14
 16:07:53    24     25.203       1.104    1.8     331.0   1.0      22
 16:21:44    24     23.641       1.091    3.0     355.0   2.0      41
 16:35:31    24     22.332       1.080    3.4     314.0   1.0      39
 16:55:55    24     20.962       1.070    6.4     294.0   2.0      64
 17:09:46    25     20.473       1.067    6.2     287.0   1.0      59
 17:23:37    26     20.374       1.066    2.6     315.0   1.0      29
 17:37:29    27     20.672       1.068    6.6     292.0   1.0      66
 17:57:46    27     21.782       1.076    2.8     313.0   1.0      31
 18:11:37    28     22.947       1.085    6.4     320.0   2.0      77
 18:20:49    28     23.876       1.093    5.2     296.0   1.0      56

DAILY MEANS  24                  2.157            310.5            31
STANDARD DEVIATION                                 22.6            18
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 18:26
SXCN10 CWTO 231930
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:12 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  14:04:30   24    1.403     291.1     5.0     8.4     1.5
DS 0  14:18:21   24    1.348     295.5     2.8     7.3     1.9
DS 0  14:38:42   24    1.279     297.5     3.1    10.9     1.5
DS 0  14:57:39   24    1.227     295.6     3.1     8.8     1.5
DS 0  15:59:41   24    1.114     326.8     2.2    14.6     3.6
DS 0  16:13:36   24    1.098     319.9     3.2    11.8     1.1
DS 0  17:29:24   27    1.067     304.3     4.0     8.7     1.2
DS 3  18:17:23   28    1.090     294.2     3.3     1.6     1.0
DS 0  18:40:24   29    1.114     300.6     4.4     4.9     2.2
DS 0  18:54:15   29    1.132     298.1     5.0     5.7     1.0
DS 1  19:08:06   29    1.154     293.8     4.7     2.2     1.9

   DAILY MEANS   26    1.184     301.6             7.7
   STANDARD DEVIATION             11.4             4.0
                             11 / 11


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:12 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6
ZS 0  12:39:14   23    1.983     294.6     0.8     1.1     0.4
ZS 0  12:53:12   23    1.848     306.3     2.1     3.8     0.4
ZS 1  13:07:11   23    1.732     298.2     1.6    -0.1     0.6
ZS 1  13:41:27   23    1.513     300.2     1.3     2.3     0.8
ZS 1  13:54:45   24    1.446     294.8     1.5     1.3     0.5
ZS 2  14:08:36   24    1.386     296.6     2.3     2.2     1.1
ZS 1  14:22:32   24    1.333     301.9     2.7     5.3     0.9
ZS 1  14:42:52   24    1.267     297.2     0.6     4.5     0.5
ZS 1  15:01:48   24    1.217     295.6     1.8     6.0     0.6
ZS 1  15:15:43   24    1.186     302.5     2.8     8.5     0.7
ZS 1  15:29:37   24    1.159     312.2     2.0    11.3     0.5
ZS 1  15:49:57   24    1.127     327.0     2.7    16.1     0.8
ZS 1  16:03:51   24    1.109     320.6     2.6    11.8     0.8
ZS 2  16:17:41   24    1.094     319.7     2.4    10.4     1.1
ZS 2  16:31:33   24    1.083     314.6     1.7     8.4     1.1
ZS 1  16:52:03   24    1.072     317.4     1.5     7.6     0.8
ZS 2  17:05:47   25    1.068     299.2     2.2     4.8     0.6
ZS 2  17:19:38   26    1.066     311.9     3.9    10.1     1.3
ZS 2  17:33:29   27    1.067     301.0     2.0     6.3     0.5
ZS 2  17:53:48   27    1.074     310.5     2.7     7.4     0.8
ZS 2  18:07:38   28    1.082     302.4     2.9     5.7     1.4
ZS 2  18:44:29   29    1.119     299.7     2.4     5.5     0.8
ZS 2  18:58:21   29    1.138     299.9     2.3     3.3     0.9
ZS 2  19:12:12   30    1.162     300.7     3.1     3.4     0.3
ZS 2  19:25:25   30    1.187     302.2     1.7     3.2     0.6

   DAILY MEANS   25    1.762     303.0             6.0
   STANDARD DEVIATION              8.6             4.2
                             34 / 34


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:12 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:04    23     87.556      10.737    0.0     306.0   9.0      26
 10:33:02    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:17    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:31    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:46    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:18    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:32    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:20    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:08    23     62.956       2.171    0.1     314.0   1.0       9
 12:43:16    23     59.341       1.942    0.4     301.0   2.0      20
 12:57:15    23     56.822       1.813    0.5     322.0   2.0      21
 13:11:09    23     54.301       1.702    1.0     284.0   1.0      32
 13:25:06    23     51.785       1.608    1.0     292.0   1.0      29
 13:45:25    23     48.133       1.492    1.7     287.0   1.0      39
 13:58:43    24     45.758       1.428    2.0     288.0   1.0      40
 14:12:35    24     43.298       1.370    2.6     283.0   1.0      47
 14:26:34    24     40.860       1.319    1.0     311.0   1.0      18
 14:51:55    24     36.523       1.242    1.6     297.0   1.0      24
 15:05:47    24     34.219       1.207    2.1     283.0   1.0      28
 15:19:45    24     31.995       1.178    1.3     303.0   1.0      18
 15:33:39    24     29.867       1.152    1.3     317.0   1.0      16
 15:54:00    24     26.977       1.121    1.1     340.0   1.0      14
 16:07:53    24     25.203       1.104    1.8     331.0   1.0      22
 16:21:44    24     23.641       1.091    3.0     355.0   2.0      41
 16:35:31    24     22.332       1.080    3.4     314.0   1.0      39
 16:55:55    24     20.962       1.070    6.4     294.0   2.0      64
 17:09:46    25     20.473       1.067    6.2     287.0   1.0      59
 17:23:37    26     20.374       1.066    2.6     315.0   1.0      29
 17:37:29    27     20.672       1.068    6.6     292.0   1.0      66
 17:57:46    27     21.782       1.076    2.8     313.0   1.0      31
 18:11:37    28     22.947       1.085    6.4     320.0   2.0      77
 18:20:49    28     23.876       1.093    5.2     296.0   1.0      56
 18:28:11    28     24.698       1.100    5.4     273.0   1.0      54
 18:48:28    29     27.263       1.124    3.7     296.0   1.0      44
 19:02:19    29     29.220       1.145    4.7     297.0   1.0      57
 19:16:10    30     31.305       1.169    6.1     266.0   2.0      69

DAILY MEANS  25                  2.044            307.4            34
STANDARD DEVIATION                                 23.5            19
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 19:28
SXCN10 CWTO 232030
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:13 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  14:04:30   24    1.403     291.1     5.0     8.4     1.5
DS 0  14:18:21   24    1.348     295.5     2.8     7.3     1.9
DS 0  14:38:42   24    1.279     297.5     3.1    10.9     1.5
DS 0  14:57:39   24    1.227     295.6     3.1     8.8     1.5
DS 0  15:59:41   24    1.114     326.8     2.2    14.6     3.6
DS 0  16:13:36   24    1.098     319.9     3.2    11.8     1.1
DS 0  17:29:24   27    1.067     304.3     4.0     8.7     1.2
DS 3  18:17:23   28    1.090     294.2     3.3     1.6     1.0
DS 0  18:40:24   29    1.114     300.6     4.4     4.9     2.2
DS 0  18:54:15   29    1.132     298.1     5.0     5.7     1.0
DS 1  19:08:06   29    1.154     293.8     4.7     2.2     1.9

   DAILY MEANS   26    1.184     301.6             7.7
   STANDARD DEVIATION             11.4             4.0
                             11 / 11


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:13 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6
ZS 0  12:39:14   23    1.983     294.6     0.8     1.1     0.4
ZS 0  12:53:12   23    1.848     306.3     2.1     3.8     0.4
ZS 1  13:07:11   23    1.732     298.2     1.6    -0.1     0.6
ZS 1  13:41:27   23    1.513     300.2     1.3     2.3     0.8
ZS 1  13:54:45   24    1.446     294.8     1.5     1.3     0.5
ZS 2  14:08:36   24    1.386     296.6     2.3     2.2     1.1
ZS 1  14:22:32   24    1.333     301.9     2.7     5.3     0.9
ZS 1  14:42:52   24    1.267     297.2     0.6     4.5     0.5
ZS 1  15:01:48   24    1.217     295.6     1.8     6.0     0.6
ZS 1  15:15:43   24    1.186     302.5     2.8     8.5     0.7
ZS 1  15:29:37   24    1.159     312.2     2.0    11.3     0.5
ZS 1  15:49:57   24    1.127     327.0     2.7    16.1     0.8
ZS 1  16:03:51   24    1.109     320.6     2.6    11.8     0.8
ZS 2  16:17:41   24    1.094     319.7     2.4    10.4     1.1
ZS 2  16:31:33   24    1.083     314.6     1.7     8.4     1.1
ZS 1  16:52:03   24    1.072     317.4     1.5     7.6     0.8
ZS 2  17:05:47   25    1.068     299.2     2.2     4.8     0.6
ZS 2  17:19:38   26    1.066     311.9     3.9    10.1     1.3
ZS 2  17:33:29   27    1.067     301.0     2.0     6.3     0.5
ZS 2  17:53:48   27    1.074     310.5     2.7     7.4     0.8
ZS 2  18:07:38   28    1.082     302.4     2.9     5.7     1.4
ZS 2  18:44:29   29    1.119     299.7     2.4     5.5     0.8
ZS 2  18:58:21   29    1.138     299.9     2.3     3.3     0.9
ZS 2  19:12:12   30    1.162     300.7     3.1     3.4     0.3
ZS 2  19:25:25   30    1.187     302.2     1.7     3.2     0.6
ZS 2  19:45:39   30    1.235     302.1     2.2     2.9     0.7
ZS 2  19:59:31   31    1.273     306.2     1.2     4.3     1.2
ZS 2  20:13:23   31    1.318     300.8     3.0     3.1     0.7
ZS 1  20:27:22   31    1.369     304.6     2.0     2.9     1.0

   DAILY MEANS   25    1.714     303.0             5.7
   STANDARD DEVIATION              8.1             4.1
                             38 / 38


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:13 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:05    23     87.556      10.737    0.0     306.0   9.0      26
 10:33:03    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:18    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:32    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:47    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:19    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:33    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:21    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:09    23     62.956       2.171    0.1     314.0   1.0       9
 12:43:17    23     59.341       1.942    0.4     301.0   2.0      20
 12:57:16    23     56.822       1.813    0.5     322.0   2.0      21
 13:11:09    23     54.301       1.702    1.0     284.0   1.0      32
 13:25:06    23     51.785       1.608    1.0     292.0   1.0      29
 13:45:25    23     48.133       1.492    1.7     287.0   1.0      39
 13:58:43    24     45.758       1.428    2.0     288.0   1.0      40
 14:12:35    24     43.298       1.370    2.6     283.0   1.0      47
 14:26:35    24     40.860       1.319    1.0     311.0   1.0      18
 14:51:56    24     36.523       1.242    1.6     297.0   1.0      24
 15:05:47    24     34.219       1.207    2.1     283.0   1.0      28
 15:19:46    24     31.995       1.178    1.3     303.0   1.0      18
 15:33:40    24     29.867       1.152    1.3     317.0   1.0      16
 15:54:01    24     26.977       1.121    1.1     340.0   1.0      14
 16:07:54    24     25.203       1.104    1.8     331.0   1.0      22
 16:21:45    24     23.641       1.091    3.0     355.0   2.0      41
 16:35:31    24     22.332       1.080    3.4     314.0   1.0      39
 16:55:55    24     20.962       1.070    6.4     294.0   2.0      64
 17:09:46    25     20.473       1.067    6.2     287.0   1.0      59
 17:23:37    26     20.374       1.066    2.6     315.0   1.0      29
 17:37:29    27     20.672       1.068    6.6     292.0   1.0      66
 17:57:46    27     21.782       1.076    2.8     313.0   1.0      31
 18:11:37    28     22.947       1.085    6.4     320.0   2.0      77
 18:20:49    28     23.876       1.093    5.2     296.0   1.0      56
 18:28:11    28     24.698       1.100    5.4     273.0   1.0      54
 18:48:28    29     27.263       1.124    3.7     296.0   1.0      44
 19:02:19    29     29.220       1.145    4.7     297.0   1.0      57
 19:16:10    30     31.305       1.169    6.1     266.0   2.0      69
 19:29:22    30     33.388       1.196    5.2     298.0   1.0      70
 19:49:38    30     36.729       1.245    3.2     298.0   1.0      48
 20:03:29    31     39.083       1.285    3.3     299.0   1.0      54
 20:17:22    31     41.489       1.331    1.7     280.0   1.0      28

DAILY MEANS  25                  1.966            306.1            35
STANDARD DEVIATION                                 22.8            19
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 20:29
SXCN10 CWTO 232130
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:13 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  14:04:30   24    1.403     291.1     5.0     8.4     1.5
DS 0  14:18:21   24    1.348     295.5     2.8     7.3     1.9
DS 0  14:38:42   24    1.279     297.5     3.1    10.9     1.5
DS 0  14:57:39   24    1.227     295.6     3.1     8.8     1.5
DS 0  15:59:41   24    1.114     326.8     2.2    14.6     3.6
DS 0  16:13:36   24    1.098     319.9     3.2    11.8     1.1
DS 0  17:29:24   27    1.067     304.3     4.0     8.7     1.2
DS 3  18:17:23   28    1.090     294.2     3.3     1.6     1.0
DS 0  18:40:24   29    1.114     300.6     4.4     4.9     2.2
DS 0  18:54:15   29    1.132     298.1     5.0     5.7     1.0
DS 1  19:08:06   29    1.154     293.8     4.7     2.2     1.9
DS 3  20:43:31   31    1.437     293.2     0.5     2.4     0.3
DS 2  21:02:23   32    1.532     291.7     0.4     1.7     0.3
DS 1  21:16:15   32    1.614     290.9     2.9     1.1     0.6

   DAILY MEANS   27    1.258     299.5             6.4
   STANDARD DEVIATION             10.8             4.3
                             14 / 14


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:13 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6
ZS 0  12:39:14   23    1.983     294.6     0.8     1.1     0.4
ZS 0  12:53:12   23    1.848     306.3     2.1     3.8     0.4
ZS 1  13:07:11   23    1.732     298.2     1.6    -0.1     0.6
ZS 1  13:41:27   23    1.513     300.2     1.3     2.3     0.8
ZS 1  13:54:45   24    1.446     294.8     1.5     1.3     0.5
ZS 2  14:08:36   24    1.386     296.6     2.3     2.2     1.1
ZS 1  14:22:32   24    1.333     301.9     2.7     5.3     0.9
ZS 1  14:42:52   24    1.267     297.2     0.6     4.5     0.5
ZS 1  15:01:48   24    1.217     295.6     1.8     6.0     0.6
ZS 1  15:15:43   24    1.186     302.5     2.8     8.5     0.7
ZS 1  15:29:37   24    1.159     312.2     2.0    11.3     0.5
ZS 1  15:49:57   24    1.127     327.0     2.7    16.1     0.8
ZS 1  16:03:51   24    1.109     320.6     2.6    11.8     0.8
ZS 2  16:17:41   24    1.094     319.7     2.4    10.4     1.1
ZS 2  16:31:33   24    1.083     314.6     1.7     8.4     1.1
ZS 1  16:52:03   24    1.072     317.4     1.5     7.6     0.8
ZS 2  17:05:47   25    1.068     299.2     2.2     4.8     0.6
ZS 2  17:19:38   26    1.066     311.9     3.9    10.1     1.3
ZS 2  17:33:29   27    1.067     301.0     2.0     6.3     0.5
ZS 2  17:53:48   27    1.074     310.5     2.7     7.4     0.8
ZS 2  18:07:38   28    1.082     302.4     2.9     5.7     1.4
ZS 2  18:44:29   29    1.119     299.7     2.4     5.5     0.8
ZS 2  18:58:21   29    1.138     299.9     2.3     3.3     0.9
ZS 2  19:12:12   30    1.162     300.7     3.1     3.4     0.3
ZS 2  19:25:25   30    1.187     302.2     1.7     3.2     0.6
ZS 2  19:45:39   30    1.235     302.1     2.2     2.9     0.7
ZS 2  19:59:31   31    1.273     306.2     1.2     4.3     1.2
ZS 2  20:13:23   31    1.318     300.8     3.0     3.1     0.7
ZS 1  20:27:22   31    1.369     304.6     2.0     2.9     1.0
ZS 2  20:47:37   31    1.456     296.1     3.1     1.3     0.9
ZS 2  21:06:28   32    1.555     296.9     2.3     0.0     0.8
ZS 1  21:20:25   32    1.642     297.5     0.7    -1.3     0.2

   DAILY MEANS   26    1.702     302.6             5.3
   STANDARD DEVIATION              8.0             4.2
                             41 / 41


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:13 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:05    23     87.556      10.737    0.0     306.0   9.0      26
 10:33:03    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:18    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:32    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:47    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:19    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:33    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:21    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:09    23     62.956       2.171    0.1     314.0   1.0       9
 12:43:17    23     59.341       1.942    0.4     301.0   2.0      20
 12:57:16    23     56.822       1.813    0.5     322.0   2.0      21
 13:11:09    23     54.301       1.702    1.0     284.0   1.0      32
 13:25:06    23     51.785       1.608    1.0     292.0   1.0      29
 13:45:25    23     48.133       1.492    1.7     287.0   1.0      39
 13:58:43    24     45.758       1.428    2.0     288.0   1.0      40
 14:12:35    24     43.298       1.370    2.6     283.0   1.0      47
 14:26:35    24     40.860       1.319    1.0     311.0   1.0      18
 14:51:56    24     36.523       1.242    1.6     297.0   1.0      24
 15:05:47    24     34.219       1.207    2.1     283.0   1.0      28
 15:19:46    24     31.995       1.178    1.3     303.0   1.0      18
 15:33:40    24     29.867       1.152    1.3     317.0   1.0      16
 15:54:01    24     26.977       1.121    1.1     340.0   1.0      14
 16:07:54    24     25.203       1.104    1.8     331.0   1.0      22
 16:21:45    24     23.641       1.091    3.0     355.0   2.0      41
 16:35:31    24     22.332       1.080    3.4     314.0   1.0      39
 16:55:55    24     20.962       1.070    6.4     294.0   2.0      64
 17:09:46    25     20.473       1.067    6.2     287.0   1.0      59
 17:23:37    26     20.374       1.066    2.6     315.0   1.0      29
 17:37:29    27     20.672       1.068    6.6     292.0   1.0      66
 17:57:46    27     21.782       1.076    2.8     313.0   1.0      31
 18:11:37    28     22.947       1.085    6.4     320.0   2.0      77
 18:20:49    28     23.876       1.093    5.2     296.0   1.0      56
 18:28:11    28     24.698       1.100    5.4     273.0   1.0      54
 18:48:28    29     27.263       1.124    3.7     296.0   1.0      44
 19:02:19    29     29.220       1.145    4.7     297.0   1.0      57
 19:16:10    30     31.305       1.169    6.1     266.0   2.0      69
 19:29:22    30     33.388       1.196    5.2     298.0   1.0      70
 19:49:38    30     36.729       1.245    3.2     298.0   1.0      48
 20:03:29    31     39.083       1.285    3.3     299.0   1.0      54
 20:17:22    31     41.489       1.331    1.7     280.0   1.0      28
 20:31:20    30     43.944       1.384    2.3     305.0   1.0      47
 20:56:35    31     48.443       1.501    2.6     288.0   1.0      60
 21:10:27    32     50.935       1.579    2.1     291.0   1.0      54
 21:24:23    32     53.446       1.669    1.6     289.0   1.0      48

DAILY MEANS  26                  1.926            304.9            37
STANDARD DEVIATION                                 22.1            19
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 21:29
SXCN10 CWTO 232230
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:14 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  14:04:30   24    1.403     291.1     5.0     8.4     1.5
DS 0  14:18:21   24    1.348     295.5     2.8     7.3     1.9
DS 0  14:38:42   24    1.279     297.5     3.1    10.9     1.5
DS 0  14:57:39   24    1.227     295.6     3.1     8.8     1.5
DS 0  15:59:41   24    1.114     326.8     2.2    14.6     3.6
DS 0  16:13:36   24    1.098     319.9     3.2    11.8     1.1
DS 0  17:29:24   27    1.067     304.3     4.0     8.7     1.2
DS 3  18:17:23   28    1.090     294.2     3.3     1.6     1.0
DS 0  18:40:24   29    1.114     300.6     4.4     4.9     2.2
DS 0  18:54:15   29    1.132     298.1     5.0     5.7     1.0
DS 1  19:08:06   29    1.154     293.8     4.7     2.2     1.9
DS 3  20:43:31   31    1.437     293.2     0.5     2.4     0.3
DS 2  21:02:23   32    1.532     291.7     0.4     1.7     0.3
DS 1  21:16:15   32    1.614     290.9     2.9     1.1     0.6
DS 0  21:50:31   32    1.879     288.8     4.5     6.1     1.0

   DAILY MEANS   28    1.299     298.8             6.4
   STANDARD DEVIATION             10.8             4.2
                             15 / 15


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-23
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:14 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:52   24    4.591     299.0     4.4    15.3     0.7
ZS 0  11:10:07   24    3.863     301.8     2.4    12.3     0.9
ZS 0  11:14:43   24    3.684     297.2     3.0    10.0     1.7
ZS 0  11:31:39   24    3.143     295.4     3.3     6.2     1.6
ZS 0  11:36:15   24    3.021     293.7     2.9     3.1     1.6
ZS 0  11:46:53   24    2.773     298.7     1.9     3.4     0.9
ZS 0  11:51:29   23    2.678     294.9     1.1    -0.2     0.9
ZS 0  12:05:18   23    2.429     296.3     0.9     1.2     0.2
ZS 0  12:19:05   23    2.223     298.2     2.6     3.2     1.6
ZS 0  12:39:14   23    1.983     294.6     0.8     1.1     0.4
ZS 0  12:53:12   23    1.848     306.3     2.1     3.8     0.4
ZS 1  13:07:11   23    1.732     298.2     1.6    -0.1     0.6
ZS 1  13:41:27   23    1.513     300.2     1.3     2.3     0.8
ZS 1  13:54:45   24    1.446     294.8     1.5     1.3     0.5
ZS 2  14:08:36   24    1.386     296.6     2.3     2.2     1.1
ZS 1  14:22:32   24    1.333     301.9     2.7     5.3     0.9
ZS 1  14:42:52   24    1.267     297.2     0.6     4.5     0.5
ZS 1  15:01:48   24    1.217     295.6     1.8     6.0     0.6
ZS 1  15:15:43   24    1.186     302.5     2.8     8.5     0.7
ZS 1  15:29:37   24    1.159     312.2     2.0    11.3     0.5
ZS 1  15:49:57   24    1.127     327.0     2.7    16.1     0.8
ZS 1  16:03:51   24    1.109     320.6     2.6    11.8     0.8
ZS 2  16:17:41   24    1.094     319.7     2.4    10.4     1.1
ZS 2  16:31:33   24    1.083     314.6     1.7     8.4     1.1
ZS 1  16:52:03   24    1.072     317.4     1.5     7.6     0.8
ZS 2  17:05:47   25    1.068     299.2     2.2     4.8     0.6
ZS 2  17:19:38   26    1.066     311.9     3.9    10.1     1.3
ZS 2  17:33:29   27    1.067     301.0     2.0     6.3     0.5
ZS 2  17:53:48   27    1.074     310.5     2.7     7.4     0.8
ZS 2  18:07:38   28    1.082     302.4     2.9     5.7     1.4
ZS 2  18:44:29   29    1.119     299.7     2.4     5.5     0.8
ZS 2  18:58:21   29    1.138     299.9     2.3     3.3     0.9
ZS 2  19:12:12   30    1.162     300.7     3.1     3.4     0.3
ZS 2  19:25:25   30    1.187     302.2     1.7     3.2     0.6
ZS 2  19:45:39   30    1.235     302.1     2.2     2.9     0.7
ZS 2  19:59:31   31    1.273     306.2     1.2     4.3     1.2
ZS 2  20:13:23   31    1.318     300.8     3.0     3.1     0.7
ZS 1  20:27:22   31    1.369     304.6     2.0     2.9     1.0
ZS 2  20:47:37   31    1.456     296.1     3.1     1.3     0.9
ZS 2  21:06:28   32    1.555     296.9     2.3     0.0     0.8
ZS 1  21:20:25   32    1.642     297.5     0.7    -1.3     0.2
ZS 1  21:34:22   32    1.742     300.7     0.9    -0.7     0.5
ZS 1  21:54:42   32    1.919     304.0     2.4    -1.2     0.4
ZS 0  22:08:40   32    2.067     304.7     0.6    -1.2     0.5
ZS 1  22:22:34   31    2.243     302.6     1.1    -1.0     0.5

   DAILY MEANS   26    1.728     302.6             4.8
   STANDARD DEVIATION              7.6             4.4
                             45 / 45


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-23
     LOCAL SOLAR NOON = 17:20:14 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:58:06    23     87.556      10.737    0.0     306.0   9.0      26
 10:33:04    24     81.972       6.173    0.1     361.0   5.0      37
 10:48:19    24     79.451       4.990    0.0     342.0   6.0      20
 11:03:33    24     76.888       4.153    0.0     365.0   6.0       5
 11:18:48    24     74.283       3.541    0.0     305.0   3.0       2
 11:40:20    24     70.547       2.923    0.2     319.0   2.0      24
 11:55:34    23     67.868       2.601    0.3     294.0   1.0      24
 12:09:22    23     65.422       2.366    0.2     304.0   1.0      18
 12:23:10    23     62.956       2.171    0.1     314.0   1.0       9
 12:43:18    23     59.341       1.942    0.4     301.0   2.0      20
 12:57:17    23     56.822       1.813    0.5     322.0   2.0      21
 13:11:09    23     54.301       1.702    1.0     284.0   1.0      32
 13:25:06    23     51.785       1.608    1.0     292.0   1.0      29
 13:45:25    23     48.133       1.492    1.7     287.0   1.0      39
 13:58:43    24     45.758       1.428    2.0     288.0   1.0      40
 14:12:35    24     43.298       1.370    2.6     283.0   1.0      47
 14:26:36    24     40.860       1.319    1.0     311.0   1.0      18
 14:51:57    24     36.523       1.242    1.6     297.0   1.0      24
 15:05:47    24     34.219       1.207    2.1     283.0   1.0      28
 15:19:47    24     31.995       1.178    1.3     303.0   1.0      18
 15:33:41    24     29.867       1.152    1.3     317.0   1.0      16
 15:54:02    24     26.977       1.121    1.1     340.0   1.0      14
 16:07:55    24     25.203       1.104    1.8     331.0   1.0      22
 16:21:46    24     23.641       1.091    3.0     355.0   2.0      41
 16:35:31    24     22.332       1.080    3.4     314.0   1.0      39
 16:55:55    24     20.962       1.070    6.4     294.0   2.0      64
 17:09:46    25     20.473       1.067    6.2     287.0   1.0      59
 17:23:37    26     20.374       1.066    2.6     315.0   1.0      29
 17:37:29    27     20.672       1.068    6.6     292.0   1.0      66
 17:57:46    27     21.782       1.076    2.8     313.0   1.0      31
 18:11:37    28     22.947       1.085    6.4     320.0   2.0      77
 18:20:49    28     23.876       1.093    5.2     296.0   1.0      56
 18:28:11    28     24.698       1.100    5.4     273.0   1.0      54
 18:48:28    29     27.263       1.124    3.7     296.0   1.0      44
 19:02:19    29     29.220       1.145    4.7     297.0   1.0      57
 19:16:10    30     31.305       1.169    6.1     266.0   2.0      69
 19:29:22    30     33.388       1.196    5.2     298.0   1.0      70
 19:49:38    30     36.729       1.245    3.2     298.0   1.0      48
 20:03:29    31     39.083       1.285    3.3     299.0   1.0      54
 20:17:22    31     41.489       1.331    1.7     280.0   1.0      28
 20:31:20    30     43.944       1.384    2.3     305.0   1.0      47
 20:56:35    31     48.443       1.501    2.6     288.0   1.0      60
 21:10:27    32     50.935       1.579    2.1     291.0   1.0      54
 21:24:23    32     53.446       1.669    1.6     289.0   1.0      48
 21:38:20    32     55.967       1.773    1.1     293.0   1.0      39
 21:58:40    32     59.632       1.959    0.6     291.0   1.0      25
 22:12:39    31     62.144       2.114    0.7     286.0   1.0      38

DAILY MEANS  26                  1.928            303.9            37
STANDARD DEVIATION                                 21.7            18
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170623 22:25
SXCN10 CWTO 240030
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170624 00:29
SXCN10 CWTO 240130
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170624 01:28
SXCN10 CWTO 240230
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170624 02:23
SXCN10 CWTO 240330
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170624 03:29
SXCN10 CWTO 240430
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17417.145
LATEST B-FILE TIMESTAMP:  20170624 04:24
SXCN10 CWTO 240530
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17517.145
LATEST B-FILE TIMESTAMP:  20170624 05:26
SXCN10 CWTO 240630
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17517.145
LATEST B-FILE TIMESTAMP:  20170624 06:27
SXCN10 CWTO 240730
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17517.145
LATEST B-FILE TIMESTAMP:  20170624 07:23
SXCN10 CWTO 240830
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17517.145
LATEST B-FILE TIMESTAMP:  20170624 08:29
SXCN10 CWTO 240930
*** NO VALID DATA FILES FOUND FOR BREWER #145 TODAY ***
=
LATEST B-FILE          :  C:/BR#145/DATA/B17517.145
LATEST B-FILE TIMESTAMP:  20170624 09:28
SXCN10 CWTO 241030


    ***      INSUFFICIENT DATA TO CALCULATE      ***
    ***  STATISTICS FOR THIS DAY'S OBSERVATIONS. ***


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-24
     LOCAL SOLAR NOON = 17:20:20 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:51:51    19     88.549      11.543    0.0     319.0   3.0      80
 10:10:51    18     85.584       8.854    0.1     314.0   5.0      86

DAILY MEANS  19                 10.198            316.5            83
STANDARD DEVIATION                                  3.5             4
=
LATEST B-FILE          :  C:/BR#145/DATA/B17517.145
LATEST B-FILE TIMESTAMP:  20170624 10:29
SXCN10 CWTO 241130
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-24
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:21 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:44   19    5.866     306.5     4.5    -7.2     1.8
DS 0  10:50:35   19    4.859     315.2     0.7     0.1     1.0
DS 1  11:04:31   20    4.117     316.9     0.7     1.5     0.6
DS 2  11:24:43   21    3.354     318.8     0.6     1.4     0.3

   DAILY MEANS   20    4.549     314.4            -1.1
   STANDARD DEVIATION              5.4             4.1
                             4 / 4


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-24
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:21 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:42   20    4.616     302.9     1.1    13.3     0.8
ZS 0  11:08:38   20    3.937     311.2     1.4     6.2     0.6

   DAILY MEANS   20    4.276     307.0             9.8
   STANDARD DEVIATION              5.9             5.0
                             2 / 2


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-24
     LOCAL SOLAR NOON = 17:20:21 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:51:52    19     88.549      11.543    0.0     319.0   3.0      80
 10:10:52    18     85.584       8.854    0.1     314.0   5.0      86
 10:31:00    19     82.344       6.390    0.1     328.0   4.0      88
 10:44:50    19     80.063       5.238    0.2     321.0   3.0      88
 10:58:41    20     77.744       4.401    0.3     335.0   2.0      87
 11:12:36    20     75.379       3.776    0.4     327.0   1.0      87

DAILY MEANS  19                  6.700            324.0            86
STANDARD DEVIATION                                  7.5             3
=
LATEST B-FILE          :  C:/BR#145/DATA/B17517.145
LATEST B-FILE TIMESTAMP:  20170624 11:29
SXCN10 CWTO 241230
PRELIMINARY DIRECT SUN DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-24
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:21 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
DS 0  10:36:44   19    5.866     306.5     4.5    -7.2     1.8
DS 0  10:50:35   19    4.859     315.2     0.7     0.1     1.0
DS 1  11:04:31   20    4.117     316.9     0.7     1.5     0.6
DS 2  11:24:43   21    3.354     318.8     0.6     1.4     0.3
DS 3  11:38:38   22    2.969     318.9     0.7     1.7     0.5
DS 3  11:52:31   23    2.663     319.7     1.3     1.6     0.2
DS 3  12:06:23   23    2.416     320.3     1.4     1.4     0.5
DS 4  12:26:39   24    2.129     318.0     1.9     2.3     0.8

   DAILY MEANS   21    3.547     316.8             0.3
   STANDARD DEVIATION              4.5             3.1
                             8 / 8


PRELIMINARY ZENITH SKY DATA


TORONTO OZONE - BREWER # 145
              PRELIMINARY DATA   -   LOCAL DATE 2017-06-24
              LATITUDE - 43.781  :   LONGITUDE - 79.468
              LOCAL SOLAR NOON = 17:20:21 GMT
   ETC'S - O3/SO2 - 1590 / 340  :   ABSORPTION - 0.346 / 1.151

TYPE  TIME-GMT  TEMP  AIRMASS    OZONE    ERROR    SO2    ERROR
ZS 0  10:54:42   20    4.616     302.9     1.1    13.3     0.8
ZS 0  11:08:38   20    3.937     311.2     1.4     6.2     0.6
ZS 0  11:28:51   22    3.230     315.7     1.2     1.8     0.3
ZS 0  11:42:47   22    2.870     316.2     1.2     0.3     0.5
ZS 0  11:56:40   23    2.584     317.2     0.9    -0.2     0.4
ZS 0  12:10:31   23    2.351     318.4     0.5    -0.4     0.2

   DAILY MEANS   22    3.265     313.6             3.5
   STANDARD DEVIATION              5.8             5.4
                             6 / 6


     SUMMARY OF BREWER UVB SCAN MEASUREMENTS FOR 2017-06-24
     LOCAL SOLAR NOON = 17:20:21 GMT
 TIME-GMT  TEMP  ZENITH ANGLE  AIRMASS  UV INDEX  OZONE ERROR  CLEARNESS

 09:51:52    19     88.549      11.543    0.0     319.0   3.0      80
 10:10:52    18     85.584       8.854    0.1     314.0   5.0      86
 10:31:00    19     82.344       6.390    0.1     328.0   4.0      88
 10:44:50    19     80.063       5.238    0.2     321.0   3.0      88
 10:58:41    20     77.744       4.401    0.3     335.0   2.0      87
 11:12:36    20     75.379       3.776    0.4     327.0   1.0      87
 11:32:49    22     71.891       3.119    0.6     331.0   1.0      87
 11:46:46    22     69.451       2.782    0.7     324.0   1.0      88
 12:00:38    23     67.005       2.512    1.0     320.0   1.0      88
 12:14:30    23     64.540       2.292    1.2     321.0   1.0      88

DAILY MEANS  21                  5.091            324.0            87
STANDARD DEVIATION                                  6.3             2
=
LATEST B-FILE          :  C:/BR#145/DATA/B17517.145
LATEST B-FILE TIMESTAMP:  20170624 12:29