Guide to Air Quality Health Index forecasts: chapter 3


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.  

These include:

  • 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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