Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
49 1pm
42
42
30 4pm
40
40
40 7pm
42
42
42 10pm
40
40
39 1am
39
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Station readings
30
CAMS model adj +15
34
27
27
27
25
25
25
27
27
27
25
25
24
24

Air Quality Trend (24h)

PM2.57.2 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

34
Sarnia, Ontario, Canada
0.0 km PM2.5: 8.2 µg/m³
35
Sarnia, Ontario, Canada
0.0 km PM2.5: 8.4 µg/m³
30
Sarnia, Ontario, Canada
0.0 km PM2.5: 7.2 µg/m³
32
Port Huron, Michigan, USA
5.3 km PM2.5: 7.7 µg/m³

Nearby Cities

32 Sarnia 36 Port Huron 26 Mount Clemens 28 Clinton Township 23 Shelby 45 Strathroy 30 Chatham 27 Saint Clair Shores 27 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-18T16:31 UTC.