Hamilton Downtown, Ontario, Canada Air Quality

Monitoring Station · Hamilton, Canada
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
58 10pm
58
53
58 1am
58
58
58 4am
58
38
38 7am
38
38
31 10am
29
29
— 1pm
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—
— 4pm
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— 7pm
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Station readings
53
CAMS model adj +4
54
54
54
54
54
54
54
54
34
34
34
34
27
25
25

Air Quality Forecast (24h)

PM2.513.1 µg/m³ ✓ WHO
Moderate
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Nearby Monitoring Stations

68
Hamilton Downtown, Ontario, Canada
0.0 km PM2.5: 20.2 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 2026-08-08T01:31 UTC.