Newmarket, Ontario, Canada Air Quality

Monitoring Station · Newmarket, Canada
57
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
34 9pm
34
34
54 12am
54
54
66 3am
66
66
83 6am
83
83
83 9am
83
66
— 12pm
—
—
— 3pm
—
—
— 6pm
—
—

Air Quality Forecast (24h)

PM2.515.0 µg/m³ ✓ WHO
Moderate
View city history →

Nearby Monitoring Stations

50
Newmarket, Ontario, Canada
0.0 km PM2.5: 12.0 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
Newmarket, Ontario, Canada
0.0 km PM2.5: 12.0 µg/m³
39
NASA GSFC Rutgers Calib. N15
31.6 km PM2.5: 9.3 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 2026-08-08T00:41 UTC.