Toronto Air Quality

Monitoring Station · Bay Street Corridor, Canada
57
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
53 1am
57
48
48 4am
48
48
28 7am
19
19
18 10am
18
18
19 1pm
19
19
— 4pm
—
—
— 7pm
—
—
— 10pm
—
—
Station readings
53
57
CAMS model adj -6
54
54
54
54
54
54
34
25
25
24
24
24
25
25
25

Air Quality Forecast (24h)

PM2.515.0 µg/m³ ✓ WHO
Moderate
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Nearby Monitoring Stations

59
Toronto
0.0 km PM2.5: 15.9 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.