Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
54 3am
54
54
54 6am
54
54
54 9am
54
54
34 12pm
27
27
25 3pm
25
25
— 6pm
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—
— 9pm
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— 12am
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Air Quality Trend (24h)

PM2.55.8 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

24
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.8 µg/m³
17
Sarnia, Ontario, Canada
0.0 km PM2.5: 4.1 µg/m³
25
Sarnia, Ontario, Canada
0.0 km PM2.5: 6.0 µg/m³
18
Sarnia, Ontario, Canada
0.0 km PM2.5: 4.3 µg/m³
22
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.3 µg/m³
25
Port Huron, Michigan, USA
5.3 km PM2.5: 6.0 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 26 Mount Clemens 27 Clinton Township 27 Shelby 9 Strathroy 26 Chatham 27 Saint Clair Shores 28 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T06:59 UTC.