Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
80 4am
80
80
30 7am
80
80
80 10am
80
60
53 1pm
53
51
51 4pm
51
51
— 7pm
—
—
— 10pm
—
—
— 1am
—
—
Station readings
30
CAMS model adj +26
54
54
54
54
54
54
54
54
34
27
27
25
25
25
25

Air Quality Trend (24h)

PM2.57.2 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

25
Sarnia, Ontario, Canada
0.0 km PM2.5: 6.0 µg/m³
24
Sarnia, Ontario, Canada
0.0 km PM2.5: 5.8 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
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
27
Port Huron, Michigan, USA
5.3 km PM2.5: 6.5 µg/m³
25
Port Huron, Michigan, USA
5.3 km PM2.5: 6.0 µg/m³

Nearby Cities

24 Sarnia 25 Port Huron 20 Mount Clemens 23 Clinton Township 17 Shelby 9 Strathroy 28 Chatham 25 Saint Clair Shores 24 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T07:55 UTC.