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York Regional Municipality

Ontario

2026-01-21 03:00
AQI (US)
Good
Pollutants
PM2.5
μg/m³
7.8
O3
μg/m³
63.2
NO2
μg/m³
16.4
Weather
  • ℃
  • ℉
-12℃
76%
3 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • PM2.5
  • O3
  • NO2
Places included
Aurora
AQI 45
East Gwillimbury
AQI 45
Georgina
AQI 34
King
AQI 45
Markham
AQI 34
Mount Albert
AQI 45
Newmarket
AQI 45
Richmond Hill
AQI 50
Vaughan
AQI 50
Whitchurch-Stouffville
AQI 45
Data Sources
http://www.airnow.gov/

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Cities Nearby

Aurora
AQI 45
Newmarket
AQI 45
Richmond Hill
AQI 50
East Gwillimbury
AQI 45
Vaughan
AQI 50
Markham
AQI 34
Whitchurch-Stouffville
AQI 45
Mount Albert
AQI 45
Zephyr
AQI 34
Uxbridge
AQI 45
Georgina
AQI 34