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Air quality in Ontario

Air quality index (AQI⁺) and PM2.5 air pollution in Ontario • 06:24, Oct 25

Government of Ontario, Ministry of the EnvironmentOklahoma Department of Environmental Quality AnonymousJim GuilletNational Air Pollution Surveillance ProgramPiéEVCOChris Fournier**@airqualitybrampton & airqualitybrampton@gmail.comHamilton Air Monitoring Network - HAMNGraydonMark OberemkSouth RichvaleMC2025Stacey SchacterstevepaulquinnBelltown - Oakley AveMeAmy CuriousKevin DamenNichols FamilyAnonymousElectric Vehicle Council of OttawaCSA HamiltonianMikoAirJayDeeVBbsummAnonymous DGEC - GreensvilleSlyyyMinistry of the Environment and the Fight against Climate ChangePaulAnonymousSteven RichierandalljhowardARTSean StewartJackBMatt WojtowiczDataforge CanadaBradley SangerMichiruSWWildflower 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 GuilletNational Air Pollution Surveillance ProgramPiéEVCOChris Fournier**@airqualitybrampton & airqualitybrampton@gmail.comHamilton Air Monitoring Network - HAMNGraydonMark OberemkSouth RichvaleMC2025Stacey SchacterstevepaulquinnBelltown - Oakley AveMeAmy CuriousKevin DamenNichols FamilyAnonymousElectric Vehicle Council of OttawaCSA HamiltonianMikoAirJayDeeVBbsummAnonymous DGEC - GreensvilleSlyyyMinistry of the Environment and the Fight against Climate ChangePaulAnonymousSteven RichierandalljhowardARTSean StewartJackBMatt WojtowiczDataforge CanadaBradley SangerMichiruSWWildflower 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

Etobicoke

93

2
The national flag of Canada

Brampton

79

3
The national flag of Canada

Willowdale

79

4
The national flag of Canada

Woodstock

79

5
The national flag of Canada

Mississauga

77

6
The national flag of Canada

Orangeville

75

7
The national flag of Canada

Hamilton

66

8
The national flag of Canada

Selwyn

65

9
The national flag of Canada

Milton

64

10
The national flag of Canada

East York

61

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

Greenstone

1

3
The national flag of Canada

Breslau

2

4
The national flag of Canada

Larder Lake

4

5
The national flag of Canada

Red Lake

4

6
The national flag of Canada

South Huron

7

7
The national flag of Canada

Bainsville

13

8
The national flag of Canada

Tobermory

13

9
The national flag of Canada

Lindsay

16

10
The national flag of Canada

Thunder Bay

16

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Real-time information

Active fires

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