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
27 8pm
27
27
25 11pm
27
29
36 2am
56
56
56 5am
56
56
56 8am
56
56
— 11am
—
—
— 2pm
—
—
— 5pm
—
—
Station readings
25
CAMS model adj +2
25
25
25
25
25
27
34
54
54
54
54
54
54
54
54

Air Quality Trend (24h)

PM2.56.0 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

25
Sarnia, Ontario, Canada
0.0 km PM2.5: 6.0 µg/m³
34
Sarnia, Ontario, Canada
0.0 km PM2.5: 8.2 µg/m³
25
Port Huron, Michigan, USA
5.3 km PM2.5: 6.0 µg/m³

Nearby Cities

25 Sarnia 25 Port Huron 15 Mount Clemens 18 Clinton Township 12 Shelby 10 Strathroy 35 Chatham 20 Saint Clair Shores 18 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-14T23:23 UTC.