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
34 2am
54
54
54 5am
54
54
54 8am
54
54
54 11am
34
27
27 2pm
25
25
— 5pm
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—
— 8pm
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—
— 11pm
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Air Quality Trend (24h)

PM2.55.8 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
22
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.3 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 2026-04-15T05:12 UTC.