Toronto Air Quality

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

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
56 5pm
56
53
56 8pm
56
56
56 11pm
56
27
27 2am
29
36
36 5am
56
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Station readings
53
CAMS model adj +2
54
54
54
54
54
54
54
54
25
25
27
34
34
54

Air Quality Forecast (24h)

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

38
Toronto
0.0 km PM2.5: 9.1 µg/m³
12
canada-toronto-richmond-street-west
0.5 km PM2.5: 2.8 µg/m³
50
Toronto Downtown, Ontario, Canada
1.2 km PM2.5: 12.0 µg/m³
15
Wood Glen
9.3 km PM2.5: 3.6 µg/m³
39
Toronto East, Ontario, Canada
13.7 km PM2.5: 9.4 µg/m³
61
Toronto East, Ontario, Canada
13.7 km PM2.5: 16.9 µg/m³
26
Toronto East, Ontario, Canada
13.7 km PM2.5: 6.2 µg/m³
34
Toronto West, Ontario, Canada
14.3 km PM2.5: 8.2 µg/m³

Nearby Cities

42 Bay Street Corridor 42 Church-Yonge Corridor 41 Moss Park 42 Kensington-Chinatown 41 North St.James Town 41 Trinity-Bellwoods 40 Niagara 39 Waterfront Communities-The Island 41 Annex

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:12 UTC.