Sarnia, Ontario, Canada Air Quality

Monitoring Station · Sarnia, Canada
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
— 10pm
38
34
— 1am
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— 4am
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— 7am
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— 10am
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Station readings
38
34

Air Quality Forecast (24h)

PM2.58.2 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

28
Sarnia, Ontario, Canada
0.0 km PM2.5: 6.7 µg/m³
30
Sarnia, Ontario, Canada
0.0 km PM2.5: 7.2 µg/m³
26
Sarnia, Ontario, Canada
0.0 km PM2.5: 6.2 µg/m³
33
Port Huron, Michigan, USA
5.3 km PM2.5: 7.9 µg/m³
66
Port Huron, Michigan, USA
5.3 km PM2.5: 19.2 µg/m³
38
Port Huron, Michigan, USA
5.3 km PM2.5: 9.1 µg/m³

Nearby Cities

32 Sarnia 32 Port Huron 21 Mount Clemens 22 Clinton Township 19 Shelby 1 Strathroy 28 Chatham 32 Saint Clair Shores 23 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-10-21T01:06 UTC.