Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
36
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
31 5pm
31
36
33 8pm
33
33
33 11pm
33
33
33 2am
40
40
40 5am
60
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— 8am
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Station readings
36
CAMS model adj +6
25
25
27
27
27
27
27
27
27
27
34
34
34
54

Air Quality Trend (24h)

PM2.58.6 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

34
Sarnia, Ontario, Canada
0.0 km PM2.5: 8.2 µg/m³
24
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.8 µg/m³
38
Port Huron, Michigan, USA
5.3 km PM2.5: 9.1 µg/m³
33
Port Huron, Michigan, USA
5.3 km PM2.5: 7.9 µg/m³
38
Port Huron, Michigan, USA
5.3 km PM2.5: 9.1 µg/m³

Nearby Cities

36 Sarnia 36 Port Huron 18 Mount Clemens 21 Clinton Township 15 Shelby 35 Strathroy 36 Chatham 27 Saint Clair Shores 23 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T20:00 UTC.