Newmarket, Ontario, Canada

Monitoring Station · Newmarket, Canada
61
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
83 12am
46
56
61 3am
56
56
56 6am
56
56
56 9am
83
83
83 12pm
54
53
— 3pm
—
—
— 6pm
—
—
— 9pm
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Station readings
46
61
CAMS model adj +29
54
27
27
27
27
27
27
27
27
27
54
54
54
25
24

Air Quality Trend (24h)

PM2.516.9 µg/m³ ×1.1 WHO
Moderate
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Nearby Monitoring Stations

59
Newmarket, Ontario, Canada
0.0 km PM2.5: 15.9 µg/m³
56
NASA GSFC Rutgers Calib. N15
31.6 km PM2.5: 14.5 µg/m³

Nearby Cities

54 Newmarket 54 Aurora 54 East Gwillimbury 54 Whitchurch-Stouffville 48 Richmond Hill 49 Stouffville 30 Keswick 48 Vaughan 48 Markham

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-16T03:56 UTC.