Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
0 5pm
0
2
2 8pm
2
2
2 11pm
2
2
2 2am
9
9
9 5am
29
29
— 8am
—
—
— 11am
—
—
— 2pm
—
—
Station readings
28
CAMS model adj -25
25
25
27
27
27
27
27
27
27
27
34
34
34
54
54

Air Quality Trend (24h)

PM2.56.7 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

36
Sarnia, Ontario, Canada
0.0 km PM2.5: 8.6 µg/m³
23
Port Huron, Michigan, USA
5.3 km PM2.5: 5.5 µg/m³

Nearby Cities

57 Sarnia 53 Port Huron 33 Mount Clemens 35 Clinton Township 30 Shelby 24 Strathroy 82 Chatham 39 Saint Clair Shores 35 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T20:59 UTC.