1. North America
  2. Canada
  3. Ontario

Ontario

Canada

2026-04-29 08:00
AQI (China)
Excellent
Pollutants
O3
μg/m³
53.9
PM10
μg/m³
5
PM2.5
μg/m³
3.1
NO2
μg/m³
8.2
CO
μg/m³
0
SO2
μg/m³
0
Weather
  • ℃
  • ℉
-2℃
93%
15 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Algoma District
AQI 18
Brant County
AQI 8
Brantford
AQI 9
Bruce County
AQI 19
Chatham-Kent Division
AQI 17
Cochrane District
AQI 23
Dufferin County
AQI 22
Durham Regional Municipality
AQI 21
Elgin County
AQI 11
Essex County
AQI 20
Frontenac County
AQI 27
Greater Sudbury Division
AQI 23
Grey County
AQI 20
Haldimand County
AQI 23
Haliburton County
AQI 18
Halton Regional Municipality
AQI 14
Hamilton Division
AQI 11
Hastings County
AQI 21
Huron County
AQI 22
Kawartha Lakes Division
AQI 2
Kenora District
AQI 22
Lambton County
AQI 25
Lanark County
AQI 14
Leeds and Grenville United Counties
AQI 18
Lennox and Addington County
AQI 8
Manitoulin District
AQI 22
Middlesex County
AQI 13
Muskoka District Municipality
AQI 16
Niagara Regional Municipality
AQI 18
Nipissing District
AQI 21
Norfolk County
AQI 8
Northumberland County
AQI 30
Ottawa Division
AQI 26
Oxford County
AQI 10
Parry Sound District
AQI 22
Peel Regional Municipality
AQI 14
Perth County
AQI 25
Peterborough County
AQI 15
Prescott and Russell United Counties
AQI 1
Prince Edward County
AQI 6
Rainy River District
AQI 19
Renfrew County
AQI 17
Simcoe County
AQI 15
Stormont, Dundas and Glengarry United Counties
AQI 29
Sudbury District
AQI 13
Thunder Bay District
AQI 12
Timiskaming District
AQI 13
Toronto Division
AQI 16
Waterloo Regional Municipality
AQI 11
Wellington County
AQI 8
York Regional Municipality
AQI 16
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Hearst
AQI 15
Manitouwadge
AQI 14
Attawapiskat
AQI 11
Marathon
AQI 18
Kapuskasing
AQI 13
Moonbeam
AQI 23
Moosonee
AQI 17
Wawa
AQI 17
Cochrane
AQI 13
Timmins
AQI 14
Thunder Bay
AQI 12