Sarnia, Ontario, Canada Air Quality

Monitoring Station · Sarnia, Canada
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
64 11pm
64
64
55 2am
64
62
62 5am
64
64
71 8am
91
91
91 11am
91
62
— 2pm
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—
— 5pm
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Station readings
55
CAMS model adj +37
27
27
27
27
27
25
25
27
27
34
54
54
54
54
25

Air Quality Forecast (24h)

PM2.514.0 µg/m³ ✓ WHO
Moderate
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Nearby Monitoring Stations

65
Sarnia, Ontario, Canada
0.0 km PM2.5: 18.8 µg/m³
14
Sarnia, Ontario, Canada
0.0 km PM2.5: 3.4 µg/m³
42
Sarnia, Ontario, Canada
0.0 km PM2.5: 10.1 µg/m³
55
Sarnia, Ontario, Canada
0.0 km PM2.5: 14.0 µg/m³
42
Sarnia, Ontario, Canada
0.0 km PM2.5: 10.1 µg/m³
62
Sarnia, Ontario, Canada
0.0 km PM2.5: 17.3 µg/m³
58
Sarnia, Ontario, Canada
0.0 km PM2.5: 15.4 µg/m³
53
Port Huron, Michigan, USA
5.3 km PM2.5: 13.1 µg/m³

Nearby Cities

53 Sarnia 53 Port Huron 31 Mount Clemens 31 Clinton Township 31 Shelby 38 Strathroy 42 Chatham 59 Saint Clair Shores 42 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T02:34 UTC.