Toronto Air Quality

Monitoring Station · Bay Street Corridor, Canada
59
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
47 1am
47
47
47 4am
47
47
27 7am
18
18
17 10am
17
17
18 1pm
18
18
— 4pm
—
—
— 7pm
—
—
— 10pm
—
—
CAMS model adj -7
54
54
54
54
54
54
34
25
25
24
24
24
25
25
25

Air Quality Forecast (24h)

PM2.515.9 µg/m³ ×1.1 WHO
Moderate
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Nearby Monitoring Stations

57
Toronto
0.0 km PM2.5: 15.0 µg/m³
-
canada-toronto-richmond-street-west
0.5 km PM2.5: 0.1 µg/m³
147
Toronto Downtown, Ontario, Canada
1.2 km PM2.5: 54.2 µg/m³
68
Toronto East, Ontario, Canada
13.7 km PM2.5: 20.2 µg/m³
17
Toronto East, Ontario, Canada
13.7 km PM2.5: 4.1 µg/m³
20
Toronto East, Ontario, Canada
13.7 km PM2.5: 4.8 µg/m³
35
Toronto West, Ontario, Canada
14.3 km PM2.5: 8.4 µg/m³
158
Toronto North, Ontario, Canada
14.5 km PM2.5: 69.1 µg/m³

Nearby Cities

34 Bay Street Corridor 34 Church-Yonge Corridor 34 Moss Park 34 Kensington-Chinatown 34 North St.James Town 34 Trinity-Bellwoods 34 Niagara 34 Waterfront Communities-The Island 34 Annex

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-30T04:52 UTC.