Toronto Downtown, Ontario, Canada Air Quality

Monitoring Station · Bay Street Corridor, Canada
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
63 11pm
51
51
46 2am
51
51
51 5am
51
51
31 8am
31
24
24 11am
22
22
— 2pm
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—
— 5pm
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— 8pm
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Station readings
46
CAMS model adj -3
66
54
54
54
54
54
54
54
54
34
34
27
27
25
25

Air Quality Forecast (24h)

PM2.511.0 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

50
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 12.0 µg/m³
50
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 12.0 µg/m³
40
Toronto Downtown, Ontario, Canada
0.0 km PM2.5: 9.6 µg/m³
25
canada-toronto-richmond-street-west
1.4 km PM2.5: 6.0 µg/m³
83
Wood Glen
9.3 km PM2.5: 27.5 µg/m³
50
Toronto East, Ontario, Canada
13.2 km PM2.5: 12.0 µg/m³
39
Toronto East, Ontario, Canada
13.2 km PM2.5: 9.4 µg/m³
38
Toronto East, Ontario, Canada
13.2 km PM2.5: 9.1 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 2026-08-08T02:35 UTC.