Toronto Downtown, Ontario, Canada Air Quality

Monitoring Station · Bay Street Corridor, Canada
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
50 12pm
50
57
34 3pm
57
57
57 6pm
77
77
77 9pm
77
77
77 12am
77
77
— 3am
—
—
— 6am
—
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— 9am
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Station readings
50
34
CAMS model adj +23
27
34
34
34
34
34
34
54
54
54
54
54
54
54
54

Air Quality Forecast (24h)

PM2.58.2 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

38
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 9.1 µg/m³
25
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 6.0 µg/m³
30
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 7.2 µg/m³
30
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 7.2 µg/m³
-
canada-toronto-richmond-street-west
1.4 km PM2.5: 0.0 µg/m³
39
Wood Glen
9.3 km PM2.5: 9.3 µg/m³
30
Toronto East, Ontario, Canada
13.2 km PM2.5: 7.2 µg/m³
25
Toronto East, Ontario, Canada
13.2 km PM2.5: 6.0 µg/m³

Nearby Cities

24 Bay Street Corridor 25 Church-Yonge Corridor 27 North St.James Town 17 Kensington-Chinatown 26 Annex 20 Moss Park 25 Rosedale-Moore Park 18 Trinity-Bellwoods 16 Niagara

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-10T15:43 UTC.