Toronto Downtown, Ontario, Canada Air Quality

Monitoring Station · Bay Street Corridor, Canada
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
58 9pm
70
70
58 12am
58
58
58 3am
58
58
58 6am
58
38
38 9am
31
31
— 12pm
—
—
— 3pm
—
—
— 6pm
—
—
CAMS model adj +4
54
66
66
54
54
54
54
54
54
54
54
34
34
27
27

Air Quality Forecast (24h)

PM2.513.1 µg/m³ ✓ WHO
Moderate
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Nearby Monitoring Stations

50
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 12.0 µg/m³
50
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 12.0 µg/m³
40
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 9.6 µg/m³
14
canada-toronto-richmond-street-west
1.4 km PM2.5: 3.4 µg/m³
61
Wood Glen
9.3 km PM2.5: 17.0 µg/m³
50
Toronto East, Ontario, Canada
13.2 km PM2.5: 12.0 µg/m³
39
Toronto East, Ontario, Canada
13.2 km PM2.5: 9.4 µg/m³
38
Toronto East, Ontario, Canada
13.2 km PM2.5: 9.1 µg/m³

Nearby Cities

55 Bay Street Corridor 55 Church-Yonge Corridor 55 North St.James Town 55 Kensington-Chinatown 55 Annex 55 Moss Park 55 Rosedale-Moore Park 55 Trinity-Bellwoods 55 Niagara

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T00:41 UTC.