1. North America
  2. Canada
  3. Ontario

Ontario

Canada

2026-04-29 10:00
AQI (China)
Excellent
Pollutants
O3
μg/m³
53.5
PM10
μg/m³
7.7
NO2
μg/m³
8.5
PM2.5
μg/m³
2.9
CO
μg/m³
0
SO2
μg/m³
0
Weather
  • ℃
  • ℉
-2℃
94%
14 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • O3
  • PM10
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Algoma District
AQI 18
Brant County
AQI 8
Brantford
AQI 14
Bruce County
AQI 19
Chatham-Kent Division
AQI 18
Cochrane District
AQI 21
Dufferin County
AQI 22
Durham Regional Municipality
AQI 19
Elgin County
AQI 13
Essex County
AQI 22
Frontenac County
AQI 25
Greater Sudbury Division
AQI 21
Grey County
AQI 20
Haldimand County
AQI 23
Haliburton County
AQI 18
Halton Regional Municipality
AQI 15
Hamilton Division
AQI 14
Hastings County
AQI 15
Huron County
AQI 22
Kawartha Lakes Division
AQI 3
Kenora District
AQI 19
Lambton County
AQI 23
Lanark County
AQI 14
Leeds and Grenville United Counties
AQI 18
Lennox and Addington County
AQI 8
Manitoulin District
AQI 22
Middlesex County
AQI 14
Muskoka District Municipality
AQI 13
Niagara Regional Municipality
AQI 21
Nipissing District
AQI 21
Norfolk County
AQI 8
Northumberland County
AQI 30
Ottawa Division
AQI 23
Oxford County
AQI 8
Parry Sound District
AQI 21
Peel Regional Municipality
AQI 14
Perth County
AQI 25
Peterborough County
AQI 9
Prescott and Russell United Counties
AQI 1
Prince Edward County
AQI 5
Rainy River District
AQI 19
Renfrew County
AQI 17
Simcoe County
AQI 17
Stormont, Dundas and Glengarry United Counties
AQI 29
Sudbury District
AQI 13
Thunder Bay District
AQI 11
Timiskaming District
AQI 13
Toronto Division
AQI 14
Waterloo Regional Municipality
AQI 11
Wellington County
AQI 9
York Regional Municipality
AQI 12
Data Sources
http://www.airnow.gov/

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Cities Nearby

Hearst
AQI 15
Manitouwadge
AQI 14
Attawapiskat
AQI 11
Marathon
AQI 18
Kapuskasing
AQI 2
Moonbeam
AQI 21
Moosonee
AQI 17
Wawa
AQI 17
Cochrane
AQI 13
Timmins
AQI 14
Thunder Bay
AQI 11