View aqi PageAQIView weather PageWeather

Ontario Air Quality Index (AQI) | Air Pollution

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

AQI Icon

Check the air quality level of thecities in Ontario

location image
Map

Ontario

Trending in Canada

Delhi’s AQI Dropped Overnight. But Why? 🌬️

Delhi’s AQI Dropped Overnight. But Why? 🌬️

Delhi’s Pollution Season Is Arriving Early This Year

Delhi’s Pollution Season Is Arriving Early This Year

Ontario's Cities

Real-time Air Pollution Level

cities
Status
AQI (US)
PM₂.₅(µg/m³)
PM₁₀(µg/m³)
Temp.(°C)
Humi.(%)
Good
33
8
10
11
54
Good
42
10
16
14
54
Good
50
12
23
12
58
Moderate
75
22
24
11
61
Good
46
11
22
11
61
Good
32
7
21
13
52
Good
50
12
20
14
54
Good
42
10
20
13
58
Good
50
12
22
12
66
Good
30
7
21
13
69
Good
33
8
10
11
54
Good
46
11
22
12
58
Good
42
10
20
11
62
Good
42
10
22
13
55
Good
50
12
21
14
54
Good
50
12
20
10
60
Good
29
7
21
13
91
Good
46
11
22
12
71
Good
50
12
22
13
65
Good
46
11
20
13
55
Good
50
12
20
10
60
Good
50
12
20
13
50
Good
50
12
21
13
65
Good
50
12
21
13
55
Good
50
12
19
13
55
Good
42
10
21
14
86
Good
34
8
10
11
61
Good
50
12
20
10
67
Good
50
12
22
13
55
Good
25
6
19
13
93
Good
50
12
19
14
49
Good
50
12
23
11
78
Good
34
8
10
12
58
Good
33
8
10
11
61
Good
50
12
21
13
51
Good
25
6
18
15
98
Good
50
12
23
15
62
Good
42
10
22
13
75
Good
42
10
20
13
75
Moderate
54
14
21
15
62
Good
29
7
19
13
58
Moderate
52
13
20
15
62
Good
21
5
20
11
62
Good
50
12
20
10
71
Good
21
5
22
13
92
Good
42
10
21
12
71
Good
46
11
22
13
53
Good
34
8
12
13
55
Good
17
3
4
13
55
Moderate
52
13
14
12
66

Canada's Metro Cities

Air Quality Index

Calgary City AQI

Calgary

37

temp.6°C
hum.76%
Edmonton City AQI

Edmonton

54

temp.2°C
hum.89%
Halifax City AQI

Halifax

16

temp.13°C
hum.69%
Ottawa City AQI

Ottawa

46

temp.13°C
hum.67%
Toronto City AQI

Toronto

41

temp.14°C
hum.47%
Vancouver City AQI

Vancouver

50

temp.11°C
hum.74%
Windsor City AQI

Windsor

52

temp.12°C
hum.66%
Winnipeg City AQI

Winnipeg

23

temp.15°C
hum.83%

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.

Estevan, Saskatchewan

63

Moderate

1xabove Standard

2.

Brandon, Manitoba

63

Moderate

1xabove Standard

3.

Weyburn, Saskatchewan

62

Moderate

1xabove Standard

4.

Regina, Saskatchewan

62

Moderate

1xabove Standard

5.

Swift Current, Saskatchewan

56

Moderate

1xequal Standard

6.

Saskatoon, Saskatchewan

56

Moderate

1xequal Standard

7.

Edson, Alberta

54

Moderate

1xbelow Standard

8.

Stony Plain, Alberta

54

Moderate

1xbelow Standard

9.

Prince Albert, Saskatchewan

54

Moderate

1xbelow Standard

10.

St Albert, Alberta

54

Moderate

1xbelow Standard

Last Updated: 26 Sept 2026, 01:18 PM

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.

Adelaide's Air Stayed Clean — But PM10 Tells a Different Story

Adelaide's Air Stayed Clean — But PM10 Tells a Different Story

15 Sept 2026AQI Newsroom
Melbourne's August Air: Clean Baseline, One Sharp Spike

Melbourne's August Air: Clean Baseline, One Sharp Spike

15 Sept 2026AQI Newsroom
Brisbane Air Quality Held Steady — Until September Arrived

Brisbane Air Quality Held Steady — Until September Arrived

15 Sept 2026AQI Newsroom
Sydney's Air Quality Stayed Clean but Ended August With a Sting

Sydney's Air Quality Stayed Clean but Ended August With a Sting

11 Sept 2026AQI Newsroom
The Night a Wall of Dust Swallowed Phoenix: What 1,520 Air Quality Readings Reveal About Arizona's Air

The Night a Wall of Dust Swallowed Phoenix: What 1,520 Air Quality Readings Reveal About Arizona's Air

24 Aug 2026Gyane Haobijam
New Delhi's Monsoon AQI Dip That Didn't Quite Last

New Delhi's Monsoon AQI Dip That Didn't Quite Last

14 Aug 2026AQI Newsroom
Gurgaon's Air Grew Steadily Worse Through Monsoon 2026

Gurgaon's Air Grew Steadily Worse Through Monsoon 2026

14 Aug 2026AQI Newsroom
Allahabad Air Quality Dips Then Swings Through Monsoon 2026

Allahabad Air Quality Dips Then Swings Through Monsoon 2026

13 Aug 2026AQI Newsroom
Mumbai's Monsoon Air: Clean Spells, Stubborn PM10 Rises

Mumbai's Monsoon Air: Clean Spells, Stubborn PM10 Rises

11 Aug 2026AQI Newsroom
Chennai's Air Quietly Worsened Through July 2026

Chennai's Air Quietly Worsened Through July 2026

11 Aug 2026AQI Newsroom
World Top 10 Hottest Cities Are All in India Again - May 2026

World Top 10 Hottest Cities Are All in India Again - May 2026

4 Jun 2026Gyane Haobijam
Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

2 Jun 2026Gyane Haobijam
What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

27 May 2026AQI Team
World Top Hottest Cities Belong to India - April 2026

World Top Hottest Cities Belong to India - April 2026

28 Apr 2026Gyane Haobijam
Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

27 Mar 2026Gyane Haobijam
Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

17 Mar 2026Gyane Haobijam
Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

14 Feb 2026Gyane Haobijam
Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

12 Feb 2026Navya
Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

2 Feb 2026Gyane Haobijam
Prana Air Logo

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