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Air quality in Ontario

Air quality index (AQI⁺) and PM2.5 air pollution in Ontario • 23:03, Oct 22

Government of Ontario, Ministry of the EnvironmentOklahoma Department of Environmental Quality AnonymousJim GuilletNational Air Pollution Surveillance ProgramPiéEVCO**Chris Fournier@airqualitybrampton & airqualitybrampton@gmail.comHamilton Air Monitoring Network - HAMNMark OberemkGraydonSouth 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 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 WepplerAnonymousMitch LPeter CornelisseGregMattAnonymous 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 ProgramPiéEVCO**Chris Fournier@airqualitybrampton & airqualitybrampton@gmail.comHamilton Air Monitoring Network - HAMNMark OberemkGraydonSouth 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 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 WepplerAnonymousMitch LPeter CornelisseGregMattAnonymous 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

76

2
The national flag of Canada

St. Catharines

62

3
The national flag of Canada

Selwyn

58

4
The national flag of Canada

Sault Ste. Marie

56

5
The national flag of Canada

Timmins

54

6
The national flag of Canada

Orangeville

52

7
The national flag of Canada

Woodstock

49

8
The national flag of Canada

Sarnia

44

9
The national flag of Canada

Amherstburg

42

10
The national flag of Canada

Hamilton

42

Live cleanest city ranking

Real-time Ontario cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Canada

Bells Corners

0

2
The national flag of Canada

Embrun

0

3
The national flag of Canada

Breslau

1

4
The national flag of Canada

Larder Lake

1

5
The national flag of Canada

South Huron

2

6
The national flag of Canada

Lindsay

3

7
The national flag of Canada

Algoma

8

8
The national flag of Canada

Bainsville

9

9
The national flag of Canada

North York

9

10
The national flag of Canada

Sioux Narrows

9

Wildfires in Ontario

Real-time information

Active fires

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Flooded gas station.
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Multiple buildings aerial shot
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Pakistan Air Quality Alert

Small group of people cycling in morning smog.
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India Air Quality Alert

Which is the most polluted city in Ontario?