Toronto Downtown: Station Information

Friday, June 20, 2025, 5:00 am

Toronto Downtown Air Monitoring Station
Photo: Toronto Downtown Ambient Air Monitoring Site
Map of Ontario with Toronto Downtown
Station Data for Toronto Downtown
Station Information
Station Name: Toronto Downtown
Address: 55 John St.
Latitude: 43.645451
Longitude: -79.3891
Station Type: Urban
Height of Air Intake: 3 m
Elevation ASL: 85 m
Pollutants Measured: O3, PM2.5, NO2
Measured Pollutants at Toronto Downtown
PollutantMeasured 1-Hour
Concentration
O3Ozone [O3]graph 23 ppb
PM2.5Fine Particulate Matter [PM2.5]graph 3 µg/m3
NO2Nitrogen Dioxide [NO2]graph 6.7 ppb
Ontario 1-hour AAQC for the measured pollutants
PollutantOntario 1-hour AAQC
O380 ppb
NO2200 ppb

Note: N/A (Not Available) denotes invalid or missing data.

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