Hamilton Downtown, Ontario, Canada Air Quality

Monitoring Station · Hamilton, Canada
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
55 11pm
80
80
80 2am
80
80
80 5am
60
60
60 8am
60
53
51 11am
51
51
— 2pm
—
—
— 5pm
—
—
— 8pm
—
—
CAMS model adj +26
54
54
54
54
54
54
54
34
34
34
34
27
25
25
25

Air Quality Forecast (24h)

PM2.514.0 µg/m³ ✓ WHO
Moderate
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Nearby Monitoring Stations

30
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 7.2 µg/m³
42
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 10.1 µg/m³
34
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 8.2 µg/m³
53
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 13.1 µg/m³
46
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 11.0 µg/m³
68
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 20.2 µg/m³
44
Hamilton Mountain, Ontario, Canada
3.2 km PM2.5: 10.6 µg/m³
34
Hamilton Mountain, Ontario, Canada
3.2 km PM2.5: 8.2 µg/m³

Nearby Cities

36 Hamilton 38 Waterdown 38 Stoney Creek 38 Ancaster 38 Burlington 38 Grimsby 39 Oakville 41 Milton 46 Brantford

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T02:57 UTC.