Newmarket, Ontario, Canada Air Quality

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

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
115 4am
55
132
132 7am
132
132
132 10am
115
103
76 1pm
74
74
74 4pm
74
74
— 7pm
—
—
— 10pm
—
—
— 1am
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Station readings
55
CAMS model adj +49
66
66
83
83
83
83
83
66
54
27
25
25
25
25
25

Air Quality Forecast (24h)

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

55
Newmarket, Ontario, Canada
0.0 km PM2.5: 14.0 µg/m³
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
36
Newmarket, Ontario, Canada
0.0 km PM2.5: 8.6 µg/m³
53
Newmarket, Ontario, Canada
0.0 km PM2.5: 13.1 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 2026-08-08T07:18 UTC.