Toronto Downtown, Ontario, Canada

Monitoring Station · Bay Street Corridor, Canada
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
37 8pm
37
37
55 11pm
37
50
50 2am
50
50
37 5am
37
37
37 8am
37
—
— 11am
—
—
— 2pm
—
—
— 5pm
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Air Quality Trend (24h)

Nearby Monitoring Stations

50
Toronto Downtown, Ontario, Canada
0.0 km
-
canada-toronto-richmond-street-west
1.4 km PM2.5: 0.0 µg/m³
57
Toronto East, Ontario, Canada
13.2 km
65
Toronto North, Ontario, Canada
13.4 km
38
Toronto West, Ontario, Canada
13.5 km
46
Toronto West, Ontario, Canada
13.5 km
31
NASA GSFC Rutgers Calib. N20
15.6 km PM2.5: 7.5 µg/m³
53
Mississauga, Ontario, Canada
25.3 km

Nearby Cities

31 Bay Street Corridor 31 Church-Yonge Corridor 31 North St.James Town 31 Kensington-Chinatown 31 Annex 31 Moss Park 31 Rosedale-Moore Park 31 Trinity-Bellwoods 31 Niagara

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T23:05 UTC.