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
53 6am
29
9
9 9am
2
2
0 12pm
0
0
0 3pm
2
2
2 6pm
2
2
— 9pm
—
—
— 12am
—
—
— 3am
—
—
CAMS model adj -25
54
54
34
34
27
27
25
25
25
25
27
27
27
27
27

Air Quality Forecast (24h)

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

40
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 9.6 µg/m³
53
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 13.1 µg/m³
50
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 12.0 µg/m³
57
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 15.0 µg/m³
46
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 11.0 µg/m³
50
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 12.0 µg/m³
23
canada-toronto-richmond-street-west
1.4 km PM2.5: 5.4 µg/m³
85
Wood Glen
9.3 km PM2.5: 28.3 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 2026-08-08T09:10 UTC.