Guide to Environment Canada's Air Quality Health Index (AQHI) Forecasts
Special Air Quality Statement
The purpose of the Special Air Quality Statement is to explain air quality situations that cannot be adequately described in the Air Quality Health Index forecast bulletin.
- To highlight significant events like forest fire smoke that is not impacting the AQHI value.
- To describe other air quality pollutants that are not included in the AQHI calculation such as odour producing pollutants like sulphur dioxide, or pollutants that may restrict visibility.
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