Sarnia, Ontario, Canada Air Quality

Monitoring Station · Sarnia, Canada
65
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
39 11pm
39
65
39 2am
39
37
37 5am
39
39
46 8am
66
66
66 11am
66
37
— 2pm
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—
— 5pm
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— 8pm
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Station readings
65
CAMS model adj +12
27
27
27
27
27
25
25
27
27
34
54
54
54
54
25

Air Quality Forecast (24h)

PM2.518.8 µg/m³ ×1.3 WHO
Moderate
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Nearby Monitoring Stations

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
55
Sarnia, Ontario, Canada
0.0 km PM2.5: 14.0 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 2026-08-08T02:36 UTC.