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 10pm
55
37
50 1am
50
50
50 4am
37
37
37 7am
37
37
50 10am
37
37
— 1pm
—
—
— 4pm
—
—
— 7pm
—
—

Air Quality Trend (24h)

Nearby Monitoring Stations

50
Toronto Downtown, Ontario, Canada
0.0 km
50
Toronto Downtown, Ontario, Canada
0.0 km
53
Toronto Downtown, Ontario, Canada
0.0 km
5
canada-toronto-richmond-street-west
1.4 km PM2.5: 1.1 µg/m³
50
Toronto East, Ontario, Canada
13.2 km
50
Toronto East, Ontario, Canada
13.2 km
57
Toronto East, Ontario, Canada
13.2 km
65
Toronto North, Ontario, Canada
13.4 km

Nearby Cities

16 Bay Street Corridor 16 Church-Yonge Corridor 16 North St.James Town 16 Kensington-Chinatown 16 Annex 16 Moss Park 16 Rosedale-Moore Park 16 Trinity-Bellwoods 16 Niagara

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-10T01:53 UTC.