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Air quality in Ontario

Air quality index (AQI⁺) and PM2.5 air pollution in Ontario • 21:37, Oct 21

Government of Ontario, Ministry of the EnvironmentOklahoma Department of Environmental Quality AnonymousJim GuilletPiéEVCO**Chris Fournier@airqualitybrampton & airqualitybrampton@gmail.comHamilton Air Monitoring Network - HAMNGraydonMark OberemkSouth RichvaleMC2025Stacey SchacterstevepaulquinnBelltown - Oakley AveMeAmy CuriousKevin DamenNichols FamilyAnonymousElectric Vehicle Council of OttawaCSA HamiltonianMikoAirNational Air Pollution Surveillance ProgramJayDeeVBbsummAnonymous DGEC - GreensvilleSlyyyMinistry of the Environment and the Fight against Climate ChangePaulAnonymousSteven RichierandalljhowardARTSean StewartJackBMatt WojtowiczDataforge CanadaMichiruBradley SangerSWWildflower Bee Farm Ontario and Nova ScotiaBijanTimothy DresserBBT Batteries Ltd.Eric SteinCaptain Benjamin WillardLara TAnonymousHaig BlvdDave McKeeCanadian Air and Precipitation Monitoring NetworkKatwyks on the RiverPierreJpSMeS WepplerAnonymousPeter CornelisseMitch LGregMattAnonymous contributor
1 stations sponsored by The Foundation for Clean Air
Government of Ontario, Ministry of the EnvironmentOklahoma Department of Environmental Quality AnonymousJim GuilletPiéEVCO**Chris Fournier@airqualitybrampton & airqualitybrampton@gmail.comHamilton Air Monitoring Network - HAMNGraydonMark OberemkSouth RichvaleMC2025Stacey SchacterstevepaulquinnBelltown - Oakley AveMeAmy CuriousKevin DamenNichols FamilyAnonymousElectric Vehicle Council of OttawaCSA HamiltonianMikoAirNational Air Pollution Surveillance ProgramJayDeeVBbsummAnonymous DGEC - GreensvilleSlyyyMinistry of the Environment and the Fight against Climate ChangePaulAnonymousSteven RichierandalljhowardARTSean StewartJackBMatt WojtowiczDataforge CanadaMichiruBradley SangerSWWildflower Bee Farm Ontario and Nova ScotiaBijanTimothy DresserBBT Batteries Ltd.Eric SteinCaptain Benjamin WillardLara TAnonymousHaig BlvdDave McKeeCanadian Air and Precipitation Monitoring NetworkKatwyks on the RiverPierreJpSMeS WepplerAnonymousPeter CornelisseMitch LGregMattAnonymous contributor
1 stations sponsored by The Foundation for Clean Air

Live most polluted city ranking

Real-time Ontario most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of Canada

Waterloo

61

2
The national flag of Canada

Etobicoke

60

3
The national flag of Canada

Algoma

58

4
The national flag of Canada

Orillia

58

5
The national flag of Canada

Kitchener

49

6
The national flag of Canada

Wellington County

47

7
The national flag of Canada

Hawkesville

45

8
The national flag of Canada

Cornwall

44

9
The national flag of Canada

Innisfil

44

10
The national flag of Canada

Thunder Bay

44

Live cleanest city ranking

Real-time Ontario cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Canada

Kenora District

0

2
The national flag of Canada

Sioux Narrows

4

3
The national flag of Canada

Ajax

5

4
The national flag of Canada

Buckhorn

6

5
The national flag of Canada

Breslau

10

6
The national flag of Canada

Orangeville

10

7
The national flag of Canada

Sheguiandah

10

8
The national flag of Canada

Bainsville

11

9
The national flag of Canada

Magnetawan

11

10
The national flag of Canada

Nepean

11

Wildfires in Ontario

Real-time information

Active fires

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Aerial shot of buildings in haze.
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