Sarnia, Ontario, Canada Air Quality

Monitoring Station · Sarnia, Canada
47
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
55 6pm
55
57
47 9pm
57
55
55 12am
57
57
57 3am
57
57
57 6am
55
55
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Station readings
47
CAMS model adj +30
25
25
27
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25
27
27
27
27
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27
25
25

Air Quality Forecast (24h)

PM2.511.3 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

32
Sarnia, Ontario, Canada
0.0 km PM2.5: 7.7 µg/m³
46
Sarnia, Ontario, Canada
0.0 km PM2.5: 11.0 µg/m³
42
Sarnia, Ontario, Canada
0.0 km PM2.5: 10.1 µg/m³
50
Port Huron, Michigan, USA
5.3 km PM2.5: 12.0 µg/m³
49
Port Huron, Michigan, USA
5.3 km PM2.5: 11.8 µg/m³
49
Port Huron, Michigan, USA
5.3 km PM2.5: 11.8 µg/m³

Nearby Cities

41 Sarnia 41 Port Huron 45 Mount Clemens 45 Clinton Township 45 Shelby 30 Strathroy 48 Chatham 50 Saint Clair Shores 41 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-10T21:44 UTC.