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Air quality in Ontario

Air quality index (AQI⁺) and PM2.5 air pollution in Ontario • 19:28, 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

Port Stanley

65

2
The national flag of Canada

Hamilton

55

3
The national flag of Canada

Windsor

55

4
The national flag of Canada

Tobermory

53

5
The national flag of Canada

Chatham

51

6
The national flag of Canada

Niagara on the Lake

50

7
The national flag of Canada

Sarnia

48

8
The national flag of Canada

Etobicoke

47

9
The national flag of Canada

Grand Bend

47

10
The national flag of Canada

London

45

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

Lindsay

1

4
The national flag of Canada

Breslau

2

5
The national flag of Canada

Sioux Narrows

2

6
The national flag of Canada

North York

3

7
The national flag of Canada

Selwyn

5

8
The national flag of Canada

Cobourg

6

9
The national flag of Canada

Hawkesbury

6

10
The national flag of Canada

Magnetawan

6

Wildfires in Ontario

Real-time information

Active fires

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Flooded gas station.
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Indoor Air Quality Alert: Southwest USA flooding

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?