Cornwall, Ontario, Canada Air Quality

Monitoring Station · Cornwall, Canada
87
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
87 8am
107
107
105 11am
105
105
105 2pm
105
105
105 5pm
105
105
105 8pm
105
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Station readings
87
CAMS model adj +80
27
27
27
25
25
25
25
25
25
25
25
25
25
25

Air Quality Forecast (24h)

PM2.529.2 µg/m³ ×1.9 WHO
Moderate
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Nearby Monitoring Stations

12
Cornwall, Ontario, Canada
0.0 km PM2.5: 2.9 µg/m³
30
Cornwall, Ontario, Canada
0.0 km PM2.5: 7.2 µg/m³

Nearby Cities

17 Cornwall 25 Les Coteaux 25 Salaberry-de-Valleyfield 25 Saint-Lazare 25 Vaudreuil-Dorion 29 Clarence-Rockland 16 Orléans 16 Fallingbrook 17 Gloucester

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T11:07 UTC.