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Montreal Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-05-24 02:40:49 PM (Local Time)

location image
Live AQI
11
Air Quality is
Good
pm10 :  12 µg/m³
PM2.5 :  2 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi good level in Montreal
light rain

10 °C

Light rain
Humidity
Humidity82 %
Wind Speed
Wind Speed8 km/h
UV Index
UV Index1
Last Updated: 2025-05-24 02:40:49 PM (Local Time)
Map

Montreal

Major Air Pollutants

Montreal

PM2.5's Icon

Particulate Matter(PM2.5)

2µg/m³

PM10's Icon

Particulate Matter(PM10)

12µg/m³

CO's Icon

Carbon Monoxide(CO)

366ppb

SO2's Icon

Sulfur Dioxide(SO2)

2ppb

NO2's Icon

Nitrogen Dioxide(NO2)

3ppb

O3's Icon

Ozone(O3)

17ppb

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AQI Graph

Historical Air Quality Data

Montreal

24 Hours
AQI
Montreal

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Montreal, Quebec, Canada

AQI
Year
.
AQI

Annual AQI Trends

2020
24AQI
2021
29AQI
21%
Rise
2022
31AQI
7%
Rise
2023
33AQI
6%
Rise
2024
31AQI
-6%
Fall
2025
29AQI
-6%
Fall
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
4%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedJune, 202351AQI
Least PollutedSeptember, 202119AQI

* This data analysis is from year 2020 - 2025

Montreal's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Boulevard Saint Jean Baptiste
Good
9
2
10
10
81
Croissant Alice-Guy
Good
9
2
9
10
80
Molson
Good
10
2
10
10
81
Montreal
Good
11
2
12
10
81
Ontario
Good
10
2
10
10
80
Rue de Charleroi
Good
10
2
10
10
80
Rue Herve Saint Martin
Good
9
1
10
10
80
Rue Molson
Good
9
2
10
10
80
Rue Ontario East
Good
10
1
12
10
80
Rue Sainte-Catherine Est
Good
19
2
20
10
80
Rue York
Good
19
2
20
10
80
St Dominique
Good
10
1
12
10
80

Canada's Metro Cities

Air Quality Index

Calgary City AQI

Calgary

36

temp.14°C
hum.63%
Edmonton City AQI

Edmonton

28

temp.18°C
hum.50%
Halifax City AQI

Halifax

18

temp.8°C
hum.91%
Montreal City AQI

Montreal

11

temp.10°C
hum.82%
Ottawa City AQI

Ottawa

9

temp.10°C
hum.87%
Toronto City AQI

Toronto

15

temp.15°C
hum.63%
West Vancouver City AQI

West Vancouver

18

temp.15°C
hum.62%
Windsor City AQI

Windsor

11

temp.14°C
hum.51%

Air Quality Calendar 2025

Montreal

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jan
32
2 Jan
24
3 Jan
21
4 Jan
21
5 Jan
23
6 Jan
26
7 Jan
22
8 Jan
22
9 Jan
21
10 Jan
22
11 Jan
38
12 Jan
30
13 Jan
57
14 Jan
33
15 Jan
23
16 Jan
28
17 Jan
59
18 Jan
45
19 Jan
27
20 Jan
24
21 Jan
36
22 Jan
45
23 Jan
42
24 Jan
44
25 Jan
45
26 Jan
36
27 Jan
24
28 Jan
25
29 Jan
28
30 Jan
24
31 Jan
46
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Feb
23
2 Feb
36
3 Feb
55
4 Feb
27
5 Feb
23
6 Feb
35
7 Feb
33
8 Feb
27
9 Feb
34
10 Feb
25
11 Feb
28
12 Feb
30
13 Feb
27
14 Feb
21
15 Feb
23
16 Feb
23
17 Feb
21
18 Feb
21
19 Feb
22
20 Feb
28
21 Feb
22
22 Feb
27
23 Feb
52
24 Feb
48
25 Feb
59
26 Feb
54
27 Feb
47
28 Feb
32
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Mar
26
2 Mar
23
3 Mar
35
4 Mar
38
5 Mar
55
6 Mar
20
7 Mar
23
8 Mar
26
9 Mar
24
10 Mar
30
11 Mar
44
12 Mar
23
13 Mar
44
14 Mar
83
15 Mar
61
16 Mar
52
17 Mar
24
18 Mar
30
19 Mar
37
20 Mar
27
21 Mar
22
22 Mar
25
23 Mar
20
24 Mar
25
25 Mar
25
26 Mar
22
27 Mar
20
28 Mar
22
29 Mar
21
30 Mar
25
31 Mar
32
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Apr
18
2 Apr
20
3 Apr
21
4 Apr
19
5 Apr
21
6 Apr
18
7 Apr
20
8 Apr
22
9 Apr
18
10 Apr
26
11 Apr
34
12 Apr
41
13 Apr
26
14 Apr
34
15 Apr
29
16 Apr
15
17 Apr
17
18 Apr
28
19 Apr
44
20 Apr
16
21 Apr
21
22 Apr
23
23 Apr
17
24 Apr
23
25 Apr
23
26 Apr
25
27 Apr
14
28 Apr
23
29 Apr
32
30 Apr
18
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 May
19
2 May
26
3 May
16
4 May
30
5 May
22
6 May
22
7 May
18
8 May
16
9 May
19
10 May
23
11 May
17
12 May
23
13 May
35
14 May
39
15 May
30
16 May
42
17 May
42
18 May
21
19 May
14
20 May
14
21 May
19
22 May
16
23 May
-
24 May
-
25 May
-
26 May
-
27 May
-
28 May
-
29 May
-
30 May
-
31 May
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Montreal

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn Off
  • Car Filter
    Car FilterAdvisable
  • N95 Mask
    N95 MaskAdvisable
  • Stay Indoor
    Stay IndoorAdvisable

As per the current AQI, turn off the air purifier.

Prevent Health Problems: Understand Your Risks

Montreal

  • asthma due to air pollution in MontrealAsthma
  • heart due to air pollution in MontrealHeart Issues
  • allergy due to air pollution in MontrealAllergies
  • sinus due to air pollution in MontrealSinus
  • flu due to air pollution in MontrealCold/Flu
  • copd due to air pollution in MontrealChronic (COPD)
asthma due to air pollution in Montreal

Low Chances of Asthma

Asthma

Risk of Asthma symptoms is Low when AQI is Good (0-50)

Mild symptoms such as slight wheezing, occasional cough, and minor shortness of breath

Do's :

  • Keep track of air quality to plan outdoor activities safely.

  • Drink water to keep airways moist and reduce irritation.

  • Include non-allergenic fruits and vegetables that support overall lung health, like apples, pears, and spinach.

Don'ts :

  • Skip medications that is prescribed by your doctor.

  • Engage in outdoor activities in early morning during high pollen hours.

Most Polluted Cities 2025

Canada

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

Most Polluted Cities Live Ranking 2025
World's Most PollutedCity Rankings (2024)
World's Most PollutedCountry Rankings(2024)
RankCityAQIAQI Status

Standard Value

Follow

1.

Pemburton Hill, Canada

37
Good
2xabove Standard

2.

Calgary, Canada

36
Good
2xabove Standard

3.

St Albert, Canada

32
Good
2xabove Standard

4.

St. Albert, Canada

32
Good
2xabove Standard

5.

Grande Prairie, Canada

30
Good
2xabove Standard

6.

Airdrie, Canada

29
Good
2xabove Standard

7.

Yellowhead County, Canada

29
Good
2xabove Standard

8.

Bratts Lake No 129, Canada

29
Good
2xabove Standard

9.

Edmonton, Canada

28
Good
2xabove Standard

10.

Stony Plain, Canada

28
Good
2xabove Standard

Last Updated: 24 May 2025, 06:04 PM

AQI City Rankings

Air Quality Solutions For Montreal

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
air quality solutions for offices for Montreal

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.

air quality solutions for smart-city for Montreal

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.

air quality solutions for institutes for Montreal

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.

air quality solutions for hotels for Montreal

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.

air quality solutions for restaurants for Montreal

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.

air quality solutions for rmc-plants for Montreal

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.

air quality solutions for fitness-center for Montreal

Air Quality Solutions for Fitness Center

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

air quality solutions for parking-lot for Montreal

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.

air quality solutions for retail-stores for Montreal

Air Quality Solutions for Retail Stores

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

air quality solutions for airport for Montreal

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.

air quality solutions for construction-sites for Montreal

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.

air quality solutions for hospitals for Montreal

Air Quality Solutions For Hospitals

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

air quality solutions for bathroom for Montreal

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.

air quality solutions for banks for Montreal

Air Quality Solutions for Banks

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

air quality solutions for cinema for Montreal

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.

air quality solutions for real-estates for Montreal

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.

Montreal's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for Montreal
Mobile App

Empower Your Decisions with Reliable Data

Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Connect and control your air quality devices.

Air Quality FAQs

at Montreal

Frequently Asked Questions About Air Quality

What is the current AQI level in Montreal?

The current real-time AQI level in Montreal is 11 (Good). This was last updated 2025-05-24 02:40:49 PM (Local Time).

When was the best AQI level in Montreal in the last 24 hours?

The best AQI level was 12 (Good) at 1:09 PM (Local Time) during the last 24 hours.

When was the worst AQI level in Montreal in the last 24 hours?

The worst AQI level was 19 (Good) at 9:09 PM, May 23, 2025 (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Montreal during last 24 hours?

The AQI levels in Montreal have been fluctuating throughout the last 24 hours. The levels have increased by highest 19 at 9:09 PM, May 23, 2025 (Local Time), lowest 12 at 1:09 PM (Local Time).

What actions are recommended as per the current AQI level in Montreal?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.

Recent AQI Blogs

Read the latest news

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

How Air Pollution Fuels COPD—and What You Can Do About It?

How Air Pollution Fuels COPD—and What You Can Do About It?

22 May 2025Shakshi
How Heat and Air Pollution Can Be Increasing Mortality in India: New Study Reveals

How Heat and Air Pollution Can Be Increasing Mortality in India: New Study Reveals

19 May 2025Shakshi
Thick Dust Covers New Delhi: What’s Happening on May 15, 2025?

Thick Dust Covers New Delhi: What’s Happening on May 15, 2025?

15 May 2025Shakshi
Long-Term Exposure to Polluted Air and Its Impact on Heart Health: A Global Perspective

Long-Term Exposure to Polluted Air and Its Impact on Heart Health: A Global Perspective

15 May 2025Gyane
Carbon monoxide (CO) or PM2.5: Which is more dangerous for human health and the environment?

Carbon monoxide (CO) or PM2.5: Which is more dangerous for human health and the environment?

14 May 2025Shakshi
Methane Emissions from Delhi’s Landfills: An Invisible Threat

Methane Emissions from Delhi’s Landfills: An Invisible Threat

12 May 2025Shakshi
The Hidden Link Between Air Pollution and Parkinson’s Disease: What the Study Shows?

The Hidden Link Between Air Pollution and Parkinson’s Disease: What the Study Shows?

7 May 2025Shakshi
World Asthma Day 2025: The Link Between Air Pollution and Asthma

World Asthma Day 2025: The Link Between Air Pollution and Asthma

6 May 2025Shakshi
Why Air Quality Monitoring is Essential for Sustainable Development: Key Insights

Why Air Quality Monitoring is Essential for Sustainable Development: Key Insights

1 May 2025Gyane
Understand the Indoor Air Quality in Schools: Is Your Child Breathing Safe Air?

Understand the Indoor Air Quality in Schools: Is Your Child Breathing Safe Air?

30 Apr 2025Shakshi
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Prana Sense

Air Quality Monitor

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

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
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.

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor
Prana Air Logo

Cair +

Indoor Air Quality Monitor

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

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor
Checking for data freshness