Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
22 2am
47
47
47 5am
47
47
47 8am
47
47
47 11am
27
20
20 2pm
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— 5pm
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— 8pm
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— 11pm
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Station readings
22
CAMS model adj -7
34
54
54
54
54
54
54
54
54
54
34
27
27

Air Quality Trend (24h)

PM2.55.3 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

25
Sarnia, Ontario, Canada
0.0 km PM2.5: 6.0 µg/m³
24
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.8 µg/m³
24
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.8 µg/m³
18
Sarnia, Ontario, Canada
0.0 km PM2.5: 4.3 µg/m³
17
Sarnia, Ontario, Canada
0.0 km PM2.5: 4.1 µg/m³
18
Port Huron, Michigan, USA
5.3 km PM2.5: 4.3 µg/m³
27
Port Huron, Michigan, USA
5.3 km PM2.5: 6.5 µg/m³

Nearby Cities

18 Sarnia 19 Port Huron 25 Mount Clemens 29 Clinton Township 23 Shelby 9 Strathroy 26 Chatham 30 Saint Clair Shores 31 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T05:43 UTC.