Sarnia, Ontario, Canada Air Quality

Monitoring Station · Sarnia, Canada
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
— 10pm
—
—
— 1am
—
—
— 4am
—
—
— 7am
—
—
— 10am
—
—
— 1pm
—
—
— 4pm
—
—
— 7pm
—
—

Air Quality Forecast (24h)

PM2.56.2 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

28
Sarnia, Ontario, Canada
0.0 km PM2.5: 6.7 µg/m³
30
Sarnia, Ontario, Canada
0.0 km PM2.5: 7.2 µg/m³
34
Sarnia, Ontario, Canada
0.0 km PM2.5: 8.2 µg/m³
33
Port Huron, Michigan, USA
5.3 km PM2.5: 7.9 µg/m³
66
Port Huron, Michigan, USA
5.3 km PM2.5: 19.2 µg/m³
38
Port Huron, Michigan, USA
5.3 km PM2.5: 9.1 µg/m³

Nearby Cities

32 Sarnia 32 Port Huron 21 Mount Clemens 22 Clinton Township 19 Shelby 1 Strathroy 28 Chatham 32 Saint Clair Shores 23 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-10-21T01:06 UTC.