Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
45 4am
45
45
45 7am
45
45
45 10am
45
25
18 1pm
18
16
16 4pm
16
—
— 7pm
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—
— 10pm
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— 1am
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CAMS model adj -9
54
54
54
54
54
54
54
54
34
27
27
25
25
25

Air Quality Trend (24h)

PM2.55.3 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

24
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.8 µg/m³
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
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 2026-04-15T07:00 UTC.