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Saint- St. Stephen Mills Air Quality Health Index (AQHI)
Health Canada & Environment and Climate Change Canada official environmental metrics
Current Air Quality Category
5
Moderate Risk
Canadian AQHI Scale (1 to 10+)
No need to modify usual outdoor activities unless you experience symptoms such as coughing or throat irritation.
At-Risk Population
Enjoy your usual outdoor activities. Ideal conditions for individuals with heart or breathing issues.
General Population
Ideal air quality for outdoor sports, recreation, and work in Saint- St. Stephen Mills.
Fine Particulate (PM2.5)
5.9 µg/m³
Well below health threshold
Particulate Matter (PM10)
7.3 µg/m³
Normal background levels
Ground-Level Ozone (O3)
83 ppb
Photochemical balance
Nitrogen Dioxide (NO2)
1 ppb
Traffic emission index