Newmarket, Ontario, Canada Air Quality

Monitoring Station · Newmarket, Canada
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
53 3am
72
72
89 6am
89
89
89 9am
89
72
60 12pm
33
31
31 3pm
31
31
— 6pm
—
—
— 9pm
—
—
— 12am
—
—
CAMS model adj +6
66
66
66
83
83
83
83
83
66
54
27
25
25
25
25

Air Quality Forecast (24h)

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

50
Newmarket, Ontario, Canada
0.0 km PM2.5: 12.0 µg/m³
57
Newmarket, Ontario, Canada
0.0 km PM2.5: 15.0 µg/m³
53
Newmarket, Ontario, Canada
0.0 km PM2.5: 13.1 µg/m³
55
Newmarket, Ontario, Canada
0.0 km PM2.5: 14.0 µg/m³
36
Newmarket, Ontario, Canada
0.0 km PM2.5: 8.6 µg/m³
42
Newmarket, Ontario, Canada
0.0 km PM2.5: 10.1 µg/m³
57
NASA GSFC Rutgers Calib. N15
31.6 km PM2.5: 14.8 µg/m³

Nearby Cities

57 Newmarket 57 Aurora 57 East Gwillimbury 57 Whitchurch-Stouffville 49 Richmond Hill 52 Stouffville 54 Keswick 47 Vaughan 49 Markham

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T06:22 UTC.