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  3. Ontario

Ontario

Canada

2026-09-24 03:00
AQI (China)
Excellent
Pollutants
PM10
μg/m³
29.7
O3
μg/m³
43.8
PM2.5
μg/m³
2.9
NO2
μg/m³
7.9
CO
μg/m³
0
SO2
μg/m³
0
Weather
  • ℃
  • ℉
13℃
68%
14 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Algoma District
AQI 17
Brant County
AQI 3
Brantford
AQI 16
Bruce County
AQI 15
Chatham-Kent Division
AQI 15
Cochrane District
AQI 14
Dufferin County
AQI 7
Durham Regional Municipality
AQI 17
Elgin County
AQI 15
Essex County
AQI 30
Frontenac County
AQI 15
Greater Sudbury Division
AQI 14
Grey County
AQI 6
Haldimand County
AQI 10
Haliburton County
AQI 4
Halton Regional Municipality
AQI 17
Hamilton Division
AQI 15
Hastings County
AQI 18
Huron County
AQI 15
Kawartha Lakes Division
AQI 5
Kenora District
AQI 22
Lambton County
AQI 17
Lanark County
AQI 7
Leeds and Grenville United Counties
AQI 6
Lennox and Addington County
AQI 5
Manitoulin District
AQI 2
Middlesex County
AQI 15
Muskoka District Municipality
AQI 7
Niagara Regional Municipality
AQI 13
Nipissing District
AQI 12
Norfolk County
AQI 3
Northumberland County
AQI 4
Ottawa Division
AQI 9
Oxford County
AQI 4
Parry Sound District
AQI 15
Peel Regional Municipality
AQI 13
Perth County
AQI 9
Peterborough County
AQI 15
Prescott and Russell United Counties
AQI 8
Prince Edward County
AQI 5
Rainy River District
AQI 1
Renfrew County
AQI 5
Simcoe County
AQI 16
Stormont, Dundas and Glengarry United Counties
AQI 11
Sudbury District
AQI 1
Thunder Bay District
AQI 4
Timiskaming District
AQI 2
Toronto Division
AQI 14
Waterloo Regional Municipality
AQI 15
Wellington County
AQI 14
York Regional Municipality
AQI 15
Data Sources
http://www.airnow.gov/

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Cities Nearby

Hearst
AQI 1
Manitouwadge
AQI 1
Attawapiskat
AQI 3
Marathon
AQI 1
Kapuskasing
AQI 5
Moonbeam
AQI 14
Moosonee
AQI 2
Wawa
AQI 11
Cochrane
AQI 1
Timmins
AQI 1
Thunder Bay
AQI 2