Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
39 4pm
39
39
25 7pm
39
39
41 10pm
41
41
41 1am
41
41
41 4am
41
41
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Station readings
25
CAMS model adj +14
25
25
25
25
25
25
27
27
27
27
27
27
27
27
27

Air Quality Trend (24h)

PM2.56.0 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

24
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.8 µg/m³
26
Sarnia, Ontario, Canada
0.0 km PM2.5: 6.2 µg/m³
32
Port Huron, Michigan, USA
5.3 km PM2.5: 7.7 µg/m³

Nearby Cities

25 Sarnia 27 Port Huron 24 Mount Clemens 32 Clinton Township 21 Shelby 35 Strathroy 39 Chatham 34 Saint Clair Shores 32 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-26T19:43 UTC.