1. North America
  2. Canada
  3. Ontario

Ontario

Canada

2026-08-08 19:00
AQI (US)
Good
Pollutants
PM2.5
μg/m³
8.7
O3
μg/m³
92.5
PM10
μg/m³
24.3
NO2
μg/m³
3.3
SO2
μg/m³
1.1
CO
μg/m³
0
Weather
  • ℃
  • ℉
23℃
42%
17 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • PM2.5
  • O3
  • PM10
  • NO2
  • SO2
  • CO
Places included
Algoma District
AQI 34
Brant County
AQI 50
Brantford
AQI 50
Bruce County
AQI 50
Chatham-Kent Division
AQI 52
Cochrane District
AQI 18
Dufferin County
AQI 44
Durham Regional Municipality
AQI 53
Elgin County
AQI 54
Essex County
AQI 59
Frontenac County
AQI 45
Greater Sudbury Division
AQI 15
Grey County
AQI 34
Haldimand County
AQI 37
Haliburton County
AQI 28
Halton Regional Municipality
AQI 53
Hamilton Division
AQI 51
Hastings County
AQI 50
Huron County
AQI 50
Kawartha Lakes Division
AQI 23
Kenora District
AQI 26
Lambton County
AQI 55
Lanark County
AQI 33
Leeds and Grenville United Counties
AQI 28
Lennox and Addington County
AQI 45
Manitoulin District
AQI 13
Middlesex County
AQI 50
Muskoka District Municipality
AQI 41
Niagara Regional Municipality
AQI 46
Nipissing District
AQI 42
Norfolk County
AQI 50
Northumberland County
AQI 34
Ottawa Division
AQI 43
Oxford County
AQI 52
Parry Sound District
AQI 49
Peel Regional Municipality
AQI 52
Perth County
AQI 52
Peterborough County
AQI 43
Prescott and Russell United Counties
AQI 36
Prince Edward County
AQI 50
Rainy River District
AQI 34
Renfrew County
AQI 34
Simcoe County
AQI 50
Stormont, Dundas and Glengarry United Counties
AQI 52
Sudbury District
AQI 24
Thunder Bay District
AQI 18
Timiskaming District
AQI 12
Toronto Division
AQI 54
Waterloo Regional Municipality
AQI 54
Wellington County
AQI 54
York Regional Municipality
AQI 58
Data Sources
http://www.airnow.gov/

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Cities Nearby

Hearst
AQI 11
Manitouwadge
AQI 17
Attawapiskat
AQI 18
Marathon
AQI 22
Kapuskasing
AQI 17
Moonbeam
AQI 18
Moosonee
AQI 20
Wawa
AQI 20
Cochrane
AQI 22
Timmins
AQI 23
Thunder Bay
AQI 20