Cornwall, Ontario, Canada Air Quality

Monitoring Station · Cornwall, Canada
74
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

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AQI Forecast
24 11pm
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25 2am
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25 5am
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27 8am
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25 11am
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Air Quality Forecast (24h)

PM2.523.0 µg/m³ ×1.5 WHO
Moderate
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Nearby Monitoring Stations

177
Cornwall, Ontario, Canada
0.0 km PM2.5: 105.9 µg/m³
14
Cornwall, Ontario, Canada
0.0 km PM2.5: 3.4 µg/m³

Nearby Cities

29 Cornwall 19 Les Coteaux 19 Salaberry-de-Valleyfield 19 Saint-Lazare 19 Vaudreuil-Dorion 27 Clarence-Rockland 32 Orléans 31 Fallingbrook 35 Gloucester

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T02:12 UTC.