Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
44 8am
44
35
44 11am
44
24
17 2pm
17
17
15 5pm
15
15
17 8pm
17
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— 11pm
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— 2am
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Station readings
35
CAMS model adj -10
54
54
54
54
54
34
27
27
27
25
25
25
27
27

Air Quality Trend (24h)

PM2.58.4 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

35
Sarnia, Ontario, Canada
0.0 km PM2.5: 8.4 µg/m³
35
Port Huron, Michigan, USA
5.3 km PM2.5: 8.4 µg/m³
34
Port Huron, Michigan, USA
5.3 km PM2.5: 8.2 µg/m³

Nearby Cities

35 Sarnia 35 Port Huron 25 Mount Clemens 26 Clinton Township 25 Shelby 36 Strathroy 35 Chatham 28 Saint Clair Shores 26 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-18T11:04 UTC.