1. North America
  2. Canada
  3. Ontario

Ontario

Canada

2025-01-28 01:00
AQI (US)
Good
Pollutants
O3
μg/m³
79.3
PM2.5
μg/m³
3.8
PM10
μg/m³
19
NO2
μg/m³
7.4
CO
μg/m³
288.2
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
-21℃
89%
18 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Algoma District
AQI 38
Brant County
AQI 34
Brantford
AQI 34
Bruce County
AQI 35
Chatham-Kent Division
AQI 32
Cochrane District
AQI 39
Dufferin County
AQI 55
Durham Regional Municipality
AQI 33
Elgin County
AQI 34
Essex County
AQI 28
Frontenac County
AQI 39
Greater Sudbury Division
AQI 38
Grey County
AQI 55
Haldimand County
AQI 34
Haliburton County
AQI 44
Halton Regional Municipality
AQI 35
Hamilton Division
AQI 32
Hastings County
AQI 38
Huron County
AQI 35
Kawartha Lakes Division
AQI 31
Kenora District
AQI 36
Lambton County
AQI 35
Lanark County
AQI 49
Leeds and Grenville United Counties
AQI 42
Lennox and Addington County
AQI 39
Manitoulin District
AQI 55
Middlesex County
AQI 33
Muskoka District Municipality
AQI 34
Niagara Regional Municipality
AQI 37
Nipissing District
AQI 36
Norfolk County
AQI 34
Northumberland County
AQI 39
Ottawa Division
AQI 27
Oxford County
AQI 33
Parry Sound District
AQI 38
Peel Regional Municipality
AQI 35
Perth County
AQI 37
Peterborough County
AQI 31
Prescott and Russell United Counties
AQI 2
Prince Edward County
AQI 38
Rainy River District
AQI 57
Renfrew County
AQI 53
Simcoe County
AQI 34
Stormont, Dundas and Glengarry United Counties
AQI 43
Sudbury District
AQI 53
Thunder Bay District
AQI 38
Timiskaming District
AQI 51
Toronto Division
AQI 31
Waterloo Regional Municipality
AQI 34
Wellington County
AQI 34
York Regional Municipality
AQI 34
Data Sources
http://www.airnow.gov/http://www.airqualityontario.com/

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Cities Nearby

Hearst
AQI 50
Manitouwadge
AQI 53
Attawapiskat
AQI 46
Marathon
AQI 60
Kapuskasing
AQI 39
Moonbeam
AQI 39
Moosonee
AQI 57
Wawa
AQI 58
Cochrane
AQI 49
Timmins
AQI 50
Thunder Bay
AQI 38