Newmarket, Ontario, Canada Air Quality

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

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
60 2am
53
72
72 5am
89
89
89 8am
89
89
72 11am
60
33
31 2pm
31
31
— 5pm
—
—
— 8pm
—
—
— 11pm
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Station readings
53
CAMS model adj +6
54
66
66
66
83
83
83
83
83
66
54
27
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
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
50
NASA GSFC Rutgers Calib. N15
31.6 km PM2.5: 12.0 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 2026-08-08T05:53 UTC.