Toronto Downtown, Ontario, Canada Air Quality
Monitoring Station
· Bay Street Corridor, Canada
50
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
92
9pm
104
50
92
12am
92
92
92
3am
92
92
92
6am
92
72
72
9am
65
65
—
12pm
—
—
—
3pm
—
—
—
6pm
—
—
Station readings
50
CAMS model
adj +38
54
66
66
54
54
54
54
54
54
54
54
34
34
27
27
Air Quality Forecast (24h)
PM2.512.0 µg/m³
✓ WHO
Good
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T00:43 UTC.