Sarnia, Ontario, Canada Air Quality

Monitoring Station · Sarnia, Canada
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
21 6am
21
27
48 9am
48
48
48 12pm
19
19
19 3pm
18
19
19 6pm
19
19
— 9pm
—
—
— 12am
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— 3am
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Station readings
27
CAMS model adj -6
27
27
34
54
54
54
54
25
25
25
24
25
25
25
25

Air Quality Forecast (24h)

PM2.56.5 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

53
Sarnia, Ontario, Canada
0.0 km PM2.5: 13.1 µg/m³
53
Sarnia, Ontario, Canada
0.0 km PM2.5: 13.1 µg/m³
50
Sarnia, Ontario, Canada
0.0 km PM2.5: 12.0 µg/m³
14
Sarnia, Ontario, Canada
0.0 km PM2.5: 3.4 µg/m³
42
Sarnia, Ontario, Canada
0.0 km PM2.5: 10.1 µg/m³
51
Port Huron, Michigan, USA
5.3 km PM2.5: 12.1 µg/m³
51
Port Huron, Michigan, USA
5.3 km PM2.5: 12.1 µg/m³
52
Port Huron, Michigan, USA
5.3 km PM2.5: 12.6 µg/m³

Nearby Cities

53 Sarnia 53 Port Huron 31 Mount Clemens 31 Clinton Township 31 Shelby 38 Strathroy 42 Chatham 59 Saint Clair Shores 42 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T09:20 UTC.