Thunder Bay, Ontario, Canada Air Quality

Monitoring Station · Thunder Bay, Canada
65
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

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AQI Forecast
24 11pm
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25
25 2am
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25
25 5am
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25 8am
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25 11am
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24
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Air Quality Forecast (24h)

PM2.518.8 µg/m³ ×1.3 WHO
Moderate
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Nearby Monitoring Stations

65
Thunder Bay, Ontario, Canada
0.0 km PM2.5: 18.8 µg/m³
117
Thunder Bay, Ontario, Canada
0.0 km PM2.5: 42.0 µg/m³

Nearby Cities

48 Thunder Bay 30 Marquette 49 Duluth 53 Superior 38 Hibbing

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T02:21 UTC.