1. North America
  2. Canada
  3. Ontario

Ontario

Canada

2026-03-10 02:00
AQI (China)
Excellent
Pollutants
O3
μg/m³
76.8
PM10
μg/m³
13
NO2
μg/m³
13.5
PM2.5
μg/m³
4.3
CO
μg/m³
0
SO2
μg/m³
0
Weather
  • ℃
  • ℉
-22℃
100%
3 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • O3
  • PM10
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Algoma District
AQI 25
Brant County
AQI 5
Brantford
AQI 29
Bruce County
AQI 27
Chatham-Kent Division
AQI 24
Cochrane District
AQI 21
Dufferin County
AQI 22
Durham Regional Municipality
AQI 15
Elgin County
AQI 32
Essex County
AQI 25
Frontenac County
AQI 29
Greater Sudbury Division
AQI 27
Grey County
AQI 22
Haldimand County
AQI 28
Haliburton County
AQI 18
Halton Regional Municipality
AQI 28
Hamilton Division
AQI 30
Hastings County
AQI 31
Huron County
AQI 26
Kawartha Lakes Division
AQI 8
Kenora District
AQI 18
Lambton County
AQI 21
Lanark County
AQI 14
Leeds and Grenville United Counties
AQI 27
Lennox and Addington County
AQI 6
Manitoulin District
AQI 18
Middlesex County
AQI 28
Muskoka District Municipality
AQI 17
Niagara Regional Municipality
AQI 31
Nipissing District
AQI 33
Norfolk County
AQI 5
Northumberland County
AQI 28
Ottawa Division
AQI 25
Oxford County
AQI 6
Parry Sound District
AQI 22
Peel Regional Municipality
AQI 28
Perth County
AQI 21
Peterborough County
AQI 26
Prescott and Russell United Counties
AQI 1
Prince Edward County
AQI 27
Rainy River District
AQI 19
Renfrew County
AQI 17
Simcoe County
AQI 26
Stormont, Dundas and Glengarry United Counties
AQI 31
Sudbury District
AQI 16
Thunder Bay District
AQI 20
Timiskaming District
AQI 16
Toronto Division
AQI 23
Waterloo Regional Municipality
AQI 27
Wellington County
AQI 27
York Regional Municipality
AQI 20
Data Sources
http://www.airnow.gov/

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Cities Nearby

Hearst
AQI 13
Manitouwadge
AQI 16
Attawapiskat
AQI 12
Marathon
AQI 21
Kapuskasing
AQI 13
Moonbeam
AQI 21
Moosonee
AQI 18
Wawa
AQI 20
Cochrane
AQI 13
Timmins
AQI 14
Thunder Bay
AQI 20