Newmarket, Ontario, Canada

Monitoring Station · Newmarket, Canada
63
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
34 3pm
34
36
43 6pm
43
63
63 9pm
63
63
63 12am
36
36
36 3am
36
36
— 6am
—
—
— 9am
—
—
— 12pm
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Station readings
63
CAMS model adj +9
25
25
27
34
34
54
54
54
54
54
27
27
27
27
27

Air Quality Trend (24h)

PM2.517.8 µg/m³ ×1.2 WHO
Moderate
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Nearby Monitoring Stations

46
Newmarket, Ontario, Canada
0.0 km PM2.5: 11.0 µg/m³
46
NASA GSFC Rutgers Calib. N15
31.6 km PM2.5: 11.1 µg/m³

Nearby Cities

35 Newmarket 36 Aurora 35 East Gwillimbury 35 Whitchurch-Stouffville 47 Richmond Hill 39 Stouffville 22 Keswick 47 Vaughan 40 Markham

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T18:49 UTC.