Hamilton Downtown, Ontario, Canada Air Quality

Monitoring Station · Hamilton, Canada
68
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
54 10pm
54
54
54 1am
54
54
54 4am
54
34
34 7am
34
34
27 10am
25
25
— 1pm
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— 4pm
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— 7pm
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Air Quality Forecast (24h)

PM2.520.2 µg/m³ ×1.3 WHO
Moderate
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Nearby Monitoring Stations

53
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 13.1 µg/m³
55
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 14.0 µg/m³
30
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 7.2 µg/m³
34
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 8.2 µg/m³
42
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 10.1 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
44
Hamilton Mountain, Ontario, Canada
3.2 km PM2.5: 10.6 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 2026-08-08T01:29 UTC.