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
56 3am
56
56
56 6am
56
56
56 9am
56
56
36 12pm
29
29
27 3pm
27
27
— 6pm
—
—
— 9pm
—
—
— 12am
—
—
CAMS model adj +2
54
54
54
54
54
54
54
54
54
34
27
27
25
25
25

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
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
18
Sarnia, Ontario, Canada
0.0 km PM2.5: 4.3 µg/m³
22
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.3 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 2026-04-15T06:54 UTC.