Newmarket, Ontario, Canada

Monitoring Station · Newmarket, Canada
59
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
74 7pm
34
82
30 10pm
82
82
55 1am
55
55
55 4am
55
55
55 7am
55
55
— 10am
—
—
— 1pm
—
—
— 4pm
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Station readings
74
34
30
59
CAMS model adj +28
34
54
54
54
54
54
27
27
27
27
27
27
27
27
27

Air Quality Trend (24h)

PM2.515.9 µg/m³ ×1.1 WHO
Moderate
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Nearby Monitoring Stations

55
Newmarket, Ontario, Canada
0.0 km PM2.5: 14.0 µg/m³
48
NASA GSFC Rutgers Calib. N15
31.6 km PM2.5: 11.5 µg/m³

Nearby Cities

55 Newmarket 55 Aurora 55 East Gwillimbury 55 Whitchurch-Stouffville 47 Richmond Hill 54 Stouffville 45 Keswick 43 Vaughan 49 Markham

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T22:46 UTC.