Cornwall, Ontario, Canada

Monitoring Station · Cornwall, Canada
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
28 5am
15
35
35 8am
35
35
35 11am
28
28
28 2pm
28
26
26 5pm
26
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— 8pm
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Station readings
15
CAMS model adj +1
27
34
34
34
34
34
34
27
27
27
27
25
25
25

Air Quality Trend (24h)

PM2.53.6 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

34
Cornwall, Ontario, Canada
0.0 km PM2.5: 8.2 µg/m³
15
Cornwall, Ontario, Canada
0.0 km PM2.5: 3.6 µg/m³

Nearby Cities

15 Cornwall 51 Les Coteaux 51 Salaberry-de-Valleyfield 51 Saint-Lazare 51 Vaudreuil-Dorion 39 Clarence-Rockland 10 Orléans 10 Fallingbrook 10 Gloucester

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-17T08:58 UTC.