Hamilton Downtown, Ontario, Canada Air Quality

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

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
80 9pm
80
55
80 12am
80
80
80 3am
80
80
60 6am
60
60
60 9am
53
51
— 12pm
—
—
— 3pm
—
—
— 6pm
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Station readings
55
CAMS model adj +26
54
54
54
54
54
54
54
54
54
34
34
34
34
27
25

Air Quality Forecast (24h)

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

55
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 14.0 µg/m³
68
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 20.2 µg/m³
34
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 8.2 µg/m³
35
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 8.4 µg/m³
30
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 7.2 µg/m³
41
Hamilton Mountain, Ontario, Canada
3.2 km PM2.5: 9.8 µg/m³
42
Hamilton Mountain, Ontario, Canada
3.2 km PM2.5: 10.1 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 2026-08-08T00:05 UTC.