Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
21 11am
21
19
19 2pm
19
19
19 5pm
19
19
19 8pm
—
—
— 11pm
—
—
— 2am
—
—
— 5am
—
—
— 8am
—
—
CAMS model adj -6
27
27
25
25
25
25
25
25
25
25

Air Quality Trend (24h)

PM2.55.3 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

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
19
Sarnia, Ontario, Canada
0.0 km PM2.5: 4.6 µg/m³
18
Port Huron, Michigan, USA
5.3 km PM2.5: 4.3 µg/m³

Nearby Cities

42 Sarnia 42 Port Huron 41 Mount Clemens 41 Clinton Township 41 Shelby 35 Strathroy 41 Chatham 41 Saint Clair Shores 41 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-17T14:57 UTC.