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Air quality in Ontario

Air quality index (AQI⁺) and PM2.5 air pollution in Ontario • 11:50, Oct 04

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 AveAmy CuriousMeKevin DamenNichols FamilyElectric Vehicle Council of OttawaCSA HamiltonianMikoAirJayDeeVBbsummAnonymous DGEC - GreensvilleSlyyyMinistry of the Environment and the Fight against Climate ChangePaulAnonymousSteven RichierandalljhowardARTSean StewartJackBBriarwood Ave. Matt WojtowiczDataforge CanadaMichiruBradley SangerSWWildflower Bee Farm Ontario and Nova ScotiaTimothy DresserBBT Batteries Ltd.Eric SteinCaptain Benjamin WillardAnonymousHaig BlvdDave McKeePierreCanadian Air and Precipitation Monitoring NetworkKatwyks on the RiverJpSMeS WepplerAnonymousPeter CornelisseGregMitch LMattAnonymous 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 AveAmy CuriousMeKevin DamenNichols FamilyElectric Vehicle Council of OttawaCSA HamiltonianMikoAirJayDeeVBbsummAnonymous DGEC - GreensvilleSlyyyMinistry of the Environment and the Fight against Climate ChangePaulAnonymousSteven RichierandalljhowardARTSean StewartJackBBriarwood Ave. Matt WojtowiczDataforge CanadaMichiruBradley SangerSWWildflower Bee Farm Ontario and Nova ScotiaTimothy DresserBBT Batteries Ltd.Eric SteinCaptain Benjamin WillardAnonymousHaig BlvdDave McKeePierreCanadian Air and Precipitation Monitoring NetworkKatwyks on the RiverJpSMeS WepplerAnonymousPeter CornelisseGregMitch LMattAnonymous 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

Windsor

43

2
The national flag of Canada

Dorchester

42

3
The national flag of Canada

Chatham

39

4
The national flag of Canada

Vaughan

37

5
The national flag of Canada

Wellington County

29

6
The national flag of Canada

Brampton

28

7
The national flag of Canada

Caledon

28

8
The national flag of Canada

Cornwall

28

9
The national flag of Canada

Egbert

28

10
The national flag of Canada

Hamilton

28

Live cleanest city ranking

Real-time Ontario cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Canada

Selwyn

0

2
The national flag of Canada

Sheguiandah

0

3
The national flag of Canada

Ajax

1

4
The national flag of Canada

Breslau

1

5
The national flag of Canada

North York

1

6
The national flag of Canada

East York

2

7
The national flag of Canada

Embrun

2

8
The national flag of Canada

New Hamburg

2

9
The national flag of Canada

South Huron

2

10
The national flag of Canada

Bells Corners

6

Wildfires in Ontario

Real-time information

Active fires

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Dry grass burning.
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Wildfire Map Spotlight: Bouquet Fire, California

Forest fire.
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Wildfire Map Spotlight: Dome Fire, Yosemite National Park, California

Forest fire.
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Wildfire Map Spotlight: Sand Creek and Bobcat Lakes Fires, Montana

Which is the most polluted city in Ontario?