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Air quality in Ontario

Air quality index (AQI⁺) and PM2.5 air pollution in Ontario • 00:08, Nov 07

Live most polluted city ranking

Real-time Ontario most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of Canada

Brockville

48

2
The national flag of Canada

Magnetawan

45

3
The national flag of Canada

Thunder Bay

39

4
The national flag of Canada

Algoma

32

5
The national flag of Canada

Merrickville-Wolford

32

6
The national flag of Canada

Perth

32

7
The national flag of Canada

Buckhorn

29

8
The national flag of Canada

Hawkesbury

29

9
The national flag of Canada

Bruce Mines

28

10
The national flag of Canada

Burlington

28

Live cleanest city ranking

Real-time Ontario cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Canada

Ajax

0

2
The national flag of Canada

Bells Corners

0

3
The national flag of Canada

Embrun

0

4
The national flag of Canada

Lindsay

1

5
The national flag of Canada

Selwyn

1

6
The national flag of Canada

Almonte

2

7
The national flag of Canada

East York

2

8
The national flag of Canada

Greenstone

2

9
The national flag of Canada

Pembroke

2

10
The national flag of Canada

Etobicoke

3

Wildfires in Ontario

Real-time information

Active fires

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