Newmarket, Ontario, Canada Air Quality

Monitoring Station · Newmarket, Canada
84
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
27 3am
27
25
25 6am
25
25
25 9am
25
25
25 12pm
27
27
27 3pm
34
34
— 6pm
—
—
— 9pm
—
—
— 12am
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Air Quality Forecast (24h)

PM2.527.8 µg/m³ ×1.9 WHO
Moderate
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Nearby Monitoring Stations

94
Newmarket, Ontario, Canada
0.0 km PM2.5: 32.5 µg/m³
25
NASA GSFC Rutgers Calib. N15
31.6 km PM2.5: 5.9 µg/m³

Nearby Cities

25 Newmarket 26 Aurora 25 East Gwillimbury 25 Whitchurch-Stouffville 29 Richmond Hill 28 Stouffville 25 Keswick 28 Vaughan 27 Markham

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T06:48 UTC.