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Ontario Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Ontario

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Check the air quality level of thecities in Ontario

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Ontario

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Ontario's Cities

Real-time Air Pollution Level

cities
Status
AQI (US)
PM₂.₅(µg/m³)
PM₁₀(µg/m³)
Temp.(°C)
Humi.(%)
Good
25
6
20
12
80
Good
42
10
19
14
65
Moderate
58
16
20
14
56
Good
32
8
18
14
62
Good
48
12
13
14
57
Moderate
62
18
20
16
54
Good
38
9
11
16
63
Good
42
12
20
14
76
Good
23
6
20
14
74
Good
25
6
21
13
80
Good
25
6
20
14
56
Good
33
8
19
12
66
Good
49
12
13
13
58
Moderate
56
15
19
16
54
Good
29
7
20
11
68
Good
21
5
21
16
94
Good
42
10
11
13
70
Good
21
5
20
15
73
Good
46
11
12
14
54
Good
25
6
20
11
68
Good
42
10
12
14
54
Good
21
5
20
15
73
Good
25
6
20
15
53
Good
34
8
20
15
53
Good
33
8
21
17
76
Good
23
6
18
12
78
Good
29
7
19
11
71
Good
34
8
21
15
53
Good
38
9
21
14
81
Good
29
7
20
15
44
Good
33
8
20
13
74
Good
29
7
20
13
57
Good
29
7
20
13
68
Good
30
7
20
14
59
Good
38
9
21
17
81
Good
21
5
21
15
80
Good
42
10
21
14
78
Good
42
10
20
14
78
Good
38
9
20
17
58
Good
42
10
11
16
63
Good
38
9
20
17
58
Good
33
8
19
12
66
Good
29
7
20
11
72
Good
38
9
21
15
84
Good
29
7
11
13
70
Good
25
6
19
15
54
Good
34
8
8
14
54
Moderate
55
11
13
14
54
Good
37
9
15
16
50

Canada's Metro Cities

Air Quality Index

Calgary City AQI

Calgary

43

temp.18°C
hum.31%
Edmonton City AQI

Edmonton

47

temp.13°C
hum.67%
Halifax City AQI

Halifax

29

temp.11°C
hum.84%
Montreal City AQI

Montreal

41

temp.18°C
hum.53%
Toronto City AQI

Toronto

25

temp.16°C
hum.51%
Vancouver City AQI

Vancouver

20

temp.13°C
hum.76%
Windsor City AQI

Windsor

42

temp.16°C
hum.50%
Winnipeg City AQI

Winnipeg

21

temp.19°C
hum.69%

Most Polluted Cities 2026

Canada

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2026
World's Most PollutedCity Rankings (2025)
World's Most PollutedCountry Rankings(2025)
RankCityAQI Status

Standard Value

Follow

1.

Hope, British Columbia

67

Moderate

1xabove Standard

2.

Abbotsford, British Columbia

67

Moderate

1xabove Standard

3.

Chilliwack, British Columbia

66

Moderate

1xabove Standard

4.

Burlington, Ontario

66

Moderate

1xabove Standard

5.

Brantford, Ontario

65

Moderate

1xabove Standard

6.

Chatham, Ontario

64

Moderate

1xabove Standard

7.

Guelph, Ontario

60

Moderate

1xabove Standard

8.

Kamloops, British Columbia

60

Moderate

1xabove Standard

9.

Stony Plain, Alberta

59

Moderate

1xabove Standard

10.

Red Deer, Alberta

58

Moderate

1xabove Standard

Last Updated: 26 Sept 2026, 01:36 AM

AQI City Rankings

Air Quality Solutions For Ontario

Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

Prana Air offers the solutions of air quality monitoring and clean air machine for Ontario

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Ontario's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

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Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

Prana Air Ambient Air Quality Monitor - most realiable outdoor aqi monitoringPrana Air Ambient Air Quality Monitor - most realiable outdoor aqi monitoring
Prana Air Logo

Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

Prana Air Pocket PM2.5 Air Quality Monitor - portable, smallest and afforablePrana Air Pocket PM2.5 Air Quality Monitor - portable, smallest and afforable
Prana Air Logo

Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

Prana Air Cair+ Indoor Air Quality Monitor for home, office or institutesPrana Air Cair+ Indoor Air Quality Monitor for home, office or institutes