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Air quality in Ontario

Air quality index (AQI⁺) and PM2.5 air pollution in Ontario • 08:06, Nov 14

Government of Ontario, Ministry of the EnvironmentOklahoma Department of Environmental Quality AnonymousJim GuilletNational Air Pollution Surveillance ProgramPiéEVCOChris Fournier**@airqualitybrampton & airqualitybrampton@gmail.comMark OberemkGraydonSouth RichvaleHamilton Air Monitoring Network - HAMNMC2025Stacey SchacterstevepaulquinnMeBelltown - Oakley AveAmy CuriousKevin DamenNichols FamilyAnonymousElectric Vehicle Council of OttawaCSA HamiltonianMikoAirJayDeeVBbsummAnonymous DGEC - GreensvilleSlyyyMinistry of the Environment and the Fight against Climate ChangePaulAnonymousSteven RichierandalljhowardARTSean StewartJackBBriarwood Ave. Matt WojtowiczDataforge CanadaSWBijanBradley SangerMichiruWildflower Bee Farm Ontario and Nova ScotiaC McKTimothy DresserBBT Batteries Ltd.Eric SteinCaptain Benjamin WillardLara TAnonymousHaig BlvdDave McKeeCanadian Air and Precipitation Monitoring NetworkJpSKatwyks on the RiverPierreMeS WepplerMitch LPeter CornelisseAnonymousGregMattKaren-Ann XavierAnonymous 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.comMark OberemkGraydonSouth RichvaleHamilton Air Monitoring Network - HAMNMC2025Stacey SchacterstevepaulquinnMeBelltown - Oakley AveAmy CuriousKevin DamenNichols FamilyAnonymousElectric Vehicle Council of OttawaCSA HamiltonianMikoAirJayDeeVBbsummAnonymous DGEC - GreensvilleSlyyyMinistry of the Environment and the Fight against Climate ChangePaulAnonymousSteven RichierandalljhowardARTSean StewartJackBBriarwood Ave. Matt WojtowiczDataforge CanadaSWBijanBradley SangerMichiruWildflower Bee Farm Ontario and Nova ScotiaC McKTimothy DresserBBT Batteries Ltd.Eric SteinCaptain Benjamin WillardLara TAnonymousHaig BlvdDave McKeeCanadian Air and Precipitation Monitoring NetworkJpSKatwyks on the RiverPierreMeS WepplerMitch LPeter CornelisseAnonymousGregMattKaren-Ann XavierAnonymous 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

Timmins

41

2
The national flag of Canada

Renfrew

33

3
The national flag of Canada

Hawkesville

27

4
The national flag of Canada

Wellington County

26

5
The national flag of Canada

Caledon

24

6
The national flag of Canada

Collingwood

24

7
The national flag of Canada

East Garafraxa

24

8
The national flag of Canada

Hawkesbury

24

9
The national flag of Canada

Kenora District

24

10
The national flag of Canada

Magnetawan

24

Live cleanest city ranking

Real-time Ontario cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Canada

Concord

0

2
The national flag of Canada

Etobicoke

0

3
The national flag of Canada

Orangeville

0

4
The national flag of Canada

Orillia

0

5
The national flag of Canada

Greenstone

1

6
The national flag of Canada

Pembroke

1

7
The national flag of Canada

Cobourg

2

8
The national flag of Canada

Erin

2

9
The national flag of Canada

Woodstock

2

10
The national flag of Canada

Almonte

3

Wildfires in Ontario

Real-time information

Active fires

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