Hamilton Downtown, Ontario, Canada

Monitoring Station · Hamilton, Canada
107
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
47 4pm
54
54
107 7pm
74
74
54 10pm
54
54
74 1am
74
74
74 4am
74
74
— 7am
—
—
— 10am
—
—
— 1pm
—
—
Station readings
107
CAMS model adj +20
27
34
34
34
54
54
34
34
34
54
54
54
54
54
54

Air Quality Trend (24h)

PM2.537.9 µg/m³ ×2.5 WHO
Unhealthy for sensitive groups
View city history →

Nearby Monitoring Stations

34
Hamilton Mountain, Ontario, Canada
3.2 km PM2.5: 8.2 µg/m³
57
Hamilton Mountain, Ontario, Canada
3.2 km PM2.5: 15.0 µg/m³
76
Hamilton Mountain, Ontario, Canada
3.2 km PM2.5: 24.0 µg/m³
25
Hamilton Mountain, Ontario, Canada
3.2 km PM2.5: 6.0 µg/m³
78
Hamilton West, Ontario, Canada
3.7 km PM2.5: 24.9 µg/m³
82
Hamilton West, Ontario, Canada
3.7 km PM2.5: 26.8 µg/m³
22
Burlington, Ontario, Canada
8.0 km PM2.5: 5.3 µg/m³

Nearby Cities

83 Hamilton 66 Waterdown 66 Stoney Creek 72 Ancaster 59 Burlington 62 Grimsby 54 Oakville 55 Milton 34 Brantford

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T19:21 UTC.