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  4. York Regional Municipality
  5. Newmarket

Newmarket

York Regional Municipality

2026-05-20 15:00
AQHI (Canada)
Low
Pollutants
O3
μg/m³
55.7
PM2.5
μg/m³
1
NO2
μg/m³
4.1
Weather
  • ℃
  • ℉
16℃
51%
25 kph
7 of 11
Historical Data
  • Hourly
  • Daily
  • AQHI (Canada)
  • O3
  • PM2.5
  • NO2
Places included
Newmarket
AQI 2
Data Sources
http://www.airnow.gov/

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