Warning: Data is preliminary. Errors sometimes occur.
Explanation:
- Ozone is most recent measurement, Dobson Units and time in UTC.
(If blank then there have been no direct sun measurements since midnight. It is too early or too cloudy.)
- UV Index Recent is most recent measurement, index and time in UTC.
- UV Index Max is highest measured since local midnight last night, index and time in UTC.
- Lat. and Long. are latitude and longitude of the observing station
This page is updated every 5 minutes.
For a map of the ozone layer over Canada, click here.
Or, for a map of the ozone layer compared to normal, click here.
These maps are updated every hour.
Clicking on a city name will bring up an unformatted, untranslated page showing the data that were used to prepare this page.
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