Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
19 6am
44
44
46 9am
46
46
46 12pm
44
44
44 3pm
44
44
44 6pm
—
—
— 9pm
—
—
— 12am
—
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— 3am
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Station readings
19
CAMS model adj +19
25
25
25
27
27
27
27
25
25
25
25
25
25

Air Quality Trend (24h)

PM2.54.6 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

22
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.3 µg/m³
22
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.3 µg/m³
34
Sarnia, Ontario, Canada
0.0 km PM2.5: 8.2 µg/m³
18
Sarnia, Ontario, Canada
0.0 km PM2.5: 4.3 µg/m³
20
Sarnia, Ontario, Canada
0.0 km PM2.5: 4.8 µg/m³
18
Port Huron, Michigan, USA
5.3 km PM2.5: 4.3 µg/m³

Nearby Cities

19 Sarnia 19 Port Huron 41 Mount Clemens 41 Clinton Township 41 Shelby 37 Strathroy 24 Chatham 47 Saint Clair Shores 41 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-17T09:03 UTC.