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Air Quality Ontario

Thunder Bay: station information

Thursday, November 6, 2025, 4:00 pm

Thunder Bay Air Monitoring Station

Photo: Thunder Bay Ambient Air Monitoring Site

Map of Ontario with Thunder Bay
Station data for Thunder Bay
Station information
Station name: Thunder Bay
Address: 615 James St. S., Mto
Latitude: 48.374049
Longitude: -89.289658
Station type: Urban
Height of air intake: 3 m
Elevation ASL: 191 m
Pollutants measured: O3, PM2.5, NO2
Measured pollutants at Thunder Bay
Pollutant Measured 1-hour
concentration
O3 24 ppbOzone [O3]graph
PM2.5 2 µg/m3Fine Particulate Matter [PM2.5]graph
NO2 5 ppbNitrogen Dioxide [NO2]graph
Ontario 1-hour AAQC for the measured pollutants
Pollutant Ontario
1-hour AAQC
O380 ppb
NO2200 ppb

Note: N/A (not available) denotes invalid or missing data.

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