Air Pollution in Montréal: Real-time Air Quality Index and smog alert.

The latest data Last 7 days Montréal pollution March 2016 - May 2020 Quality of life
Current data from stations: Aéroport de Montr��al Duncan Molson Saint-Jean-Baptiste Sainte-Anne-de-Belle York-Roberval
Locations: « Quebec Montréal Mont-Royal » Dorval » Baie-D'Urfé » Mercier-Hochelaga-Maisonneuve » Rivière-des-Prairies-Pointe-aux-Trembles » Ville-Marie » Anjou »
Pollution and air quality forecast for Montréal. Today is Thursday, May 1, 2025. The following air pollution values have been recorded for Montréal:
  1. ozone (O3) - 0 (Good)
  2. particulate matter (PM2.5) dust - 10 (Good)
  3. nitrogen dioxide (NO2) - 0 (Good)
  4. carbon monoxide (CO) - 0 (Good)
  5. sulfur dioxide (SO2) - 0 (Good)
Real-time Air Quality Index (AQI) for Montréal, Tuesday, April 16, 2024: 1.

air quality index: 0
AQI 1 Good

What is the air quality in Montréal today? Is the air polluted in Montréal?. Is there smog?

Today (Tuesday, April 16, 2024) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Montréal.


How is the O3 level today in Montréal? (ozone (O3))
0 (Good)

What is the current level of PM2.5 in Montréal? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 10 (Good) For comparison, the highest level of PM2.5 in Montréal in the last 7 days was: 40 (Saturday, July 1, 2023) and the lowest: 1 (Saturday, April 13, 2024). The highest PM2.5 values were recorded: 11 (February 2020). The lowest level of particulate matter PM2.5 pollution occurs in month: April (3.3).

How high is the level of NO2? (nitrogen dioxide (NO2))
0 (Good)

How high is the CO level? (carbon monoxide (CO))
0 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
0 (Good)



Current data Tuesday, April 16, 2024, 11:00 AM

O3 0 (Good)

PM2,5 10 (Good)

NO2 0 (Good)

CO 0 (Good)

SO2 0 (Good)

Data on air pollution from recent days in Montréal

index 2023-07-06 2023-07-05 2023-07-03 2023-07-04 2023-07-02 2023-07-01 2024-04-09 2024-04-10 2024-04-11 2024-04-12 2024-04-13 2024-04-14 2024-04-15 2024-04-16
o3 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good
pm25 12
Good		 13
Moderate		 11
Good		 15
Moderate		 19
Moderate		 40
Unhealthy for Sensitive Groups		 6
Good		 6
Good		 8
Good		 2
Good		 1
Good		 2
Good		 5
Good		 3
Good
no2 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good
co -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good
so2 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good
data source »
Air pollution in Montréal from March 2016 to May 2020
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2016-05 2016-04 2016-03
co:ppm 0.16 (Good) 0.17 (Good) 0.22 (Good) 0.28 (Good) 0.27 (Good) 0.23 (Good) 0.22 (Good) 0.23 (Good) 0.21 (Good) 0.2 (Good) 0.21 (Good) 0.19 (Good) 0.19 (Good) 0.2 (Good) 0.25 (Good) 0.25 (Good) 0.25 (Good) 0.27 (Good) 0.23 (Good) - (Good) - (Good) - (Good)
no2:ppm 0 (Good) 0 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) 0.01 (Good) - (Good) 0 (Good) 0.01 (Good)
o3:ppm 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.02 (Good) 0.02 (Good) 0.02 (Good) 0.02 (Good) 0.02 (Good) 0.02 (Good) 0.02 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.02 (Good) 0.02 (Good) 0.02 (Good) 0.03 (Good) 0.04 (Good) 0.03 (Good)
pm25 3.5 (Good) 5.3 (Good) 6.9 (Good) 11 (Good) 8.8 (Good) 7.8 (Good) 7.2 (Good) 6.5 (Good) 5.6 (Good) 6 (Good) 9.1 (Good) 6.9 (Good) 5.4 (Good) 5.3 (Good) 8.5 (Good) 8.1 (Good) 8.9 (Good) 9.5 (Good) 7.1 (Good) - (Good) 3.3 (Good) 6.8 (Good)
so2:ppm 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) - (Good) - (Good) - (Good)
data source »

Quality of life in Montréal

Green and Parks in the City

Montréal 81%

United States: 70% Venezuela: 41% Iceland: 72%

particulate matter PM2.5

Montréal 8 (Good)

Pleasure of spending time in the city

Montréal 81%

United States: 75% The Bahamas: 53% Venezuela: 41% Iceland: 89%

particulate matter PM10

Montréal 15 (Good)

Air Pollution

Montréal 30%

United States: 29% The Bahamas: 52% Venezuela: 59% Iceland: 13%

Garbage Disposal

Montréal 72%

United States: 71% The Bahamas: 29% Venezuela: 18% Iceland: 79%

Availability and quality of drinking water

Montréal 83%

United States: 71% The Bahamas: 55% Venezuela: 28% Iceland: 96%

Cleanliness and tidiness

Montréal 62%

United States: 60% The Bahamas: 35% Venezuela: 22% Iceland: 75%

Noise and Light pollution

Montréal 49%

United States: 47% The Bahamas: 39% Venezuela: 47% Iceland: 23%

Water Pollution

Montréal 36%

United States: 44% The Bahamas: 58% Venezuela: 76% Iceland: 8.4%
Source: Numbeo


Aéroport de Montr��al

Saturday, July 1, 2023, 10:00 PM

O3 0.04 (Good)

ozone (O3)

PM2,5 45 (Unhealthy for Sensitive Groups)

particulate matter (PM2.5) dust

NO2 0.02 (Good)

nitrogen dioxide (NO2)

Duncan

Tuesday, April 16, 2024, 11:00 AM

O3 0.02 (Good)

ozone (O3)

CO 0.2 (Good)

carbon monoxide (CO)

PM2,5 6.3 (Good)

particulate matter (PM2.5) dust

NO2 0.02 (Good)

nitrogen dioxide (NO2)

Molson

Tuesday, April 16, 2024, 11:00 AM

NO2 0.01 (Good)

nitrogen dioxide (NO2)

SO2 0 (Good)

sulfur dioxide (SO2)

O3 0.03 (Good)

ozone (O3)

PM2,5 3.6 (Good)

particulate matter (PM2.5) dust

Saint-Jean-Baptiste

Tuesday, April 16, 2024, 11:00 AM

PM2,5 3.3 (Good)

particulate matter (PM2.5) dust

NO2 0.01 (Good)

nitrogen dioxide (NO2)

O3 0.03 (Good)

ozone (O3)

SO2 0 (Good)

sulfur dioxide (SO2)

Sainte-Anne-de-Belle

Tuesday, April 16, 2024, 10:00 AM

PM2,5 2.6 (Good)

particulate matter (PM2.5) dust

SO2 0 (Good)

sulfur dioxide (SO2)

O3 0.03 (Good)

ozone (O3)

NO2 0 (Good)

nitrogen dioxide (NO2)

York-Roberval

Tuesday, April 16, 2024, 11:00 AM

PM2,5 4.1 (Good)

particulate matter (PM2.5) dust

Tuesday, April 16, 2024, 11:00 AM

PM2,5 4.3 (Good)

particulate matter (PM2.5) dust

Aéroport de Montr��al

index 2023-07-01 2023-07-02 2023-07-04 2023-07-03 2023-07-05 2023-07-06
o3 0.03 0.04 0.04 0.04 0.03 0.04
pm25 40 19 15 11 13 12
no2 0.01 0 0.01 0.01 0.01 0.01

Duncan

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10 2024-04-09
no2 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02
co 0.2 0.25 0.2 0.22 0.23 0.24 0.24 0.33
pm25 4.5 7 2.7 1.8 2.5 7.7 7.2 9.1
o3 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.02

Molson

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10 2024-04-09
pm25 3.8 5.5 1.8 0.27 0.4 9 7.1 6.7
so2 0 0 0 0 0 0 0 0
o3 0.03 0.03 0.04 0.03 0.03 0.03 0.03 0.03
no2 0.01 0.01 0 0 0.01 0.01 0.01 0.01

Saint-Jean-Baptiste

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10 2024-04-09
so2 0 0 0 0 0 0 0 0
no2 0.01 0.01 0 0.01 0 0.01 0 0.01
o3 0.03 0.03 0.04 0.03 0.03 0.03 0.03 0.04
pm25 2.6 4 2.1 1.6 2.1 6.5 5 4.9

Sainte-Anne-de-Belle

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10 2024-04-09
so2 0 0 0 0 0 0 0 0
no2 0 0 0 0 0 0.01 0.01 0.01
o3 0.03 0.03 0.04 0.03 0.03 0.03 0.03 0.03
pm25 2.8 3.7 2 0.75 1.7 7.2 5.3 4.4

York-Roberval

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10 2024-04-09
pm25 2.9 4.5 2.5 1.5 2.5 8.5 7.1 5.3

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10 2024-04-09
pm25 3.6 4.6 2.5 1.4 2.2 7.2 6.8 6.1

Aéroport de Montréal

2018-11   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11
co:ppm 0.14 0.16 0.2 0.25 0.24 0.2 0.19 0.19 0.18 0.17 0.18 0.16 0.17 0.18 0.22 0.23 0.23 0.25 0.21
no2:ppm 0 0.01 0.01 0.02 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01
o3:ppm 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.02 0.02
pm25 3.2 4.7 6.3 11 8.1 6.7 6.9 6 5.3 5.7 8.3 5.7 4.6 4.5 7.4 7.4 8.4 9.5 6.1

Duncan

2016-03   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2016-05 2016-04 2016-03
o3:ppm 0.03 0.03 0.03 0.02 0.01 0.02 0.02 0.01 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.02 0.02 0.01 0.01 0.02 0.03 0.02
co:ppm 0.18 0.18 0.23 0.3 0.3 0.25 0.25 0.26 0.25 0.23 0.25 0.23 0.21 0.22 0.27 0.27 0.27 0.29 0.26 - - -
no2:ppm 0.01 0.01 0.01 0.02 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 - - -
pm25 5.2 6.8 9.1 15 11 9.7 8.7 8.2 7.5 8.2 12 9.4 7 6.9 12 11 12 12 9.5 - - -

Molson

2016-03   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2016-04 2016-03
pm25 2.6 4 5.6 10 7.9 6.7 5.7 5.1 4.1 4.7 7.3 6.8 4.6 4.5 7.7 7.3 8.2 9.5 6.1 3.3 6.8
o3:ppm 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.04 0.03
no2:ppm 0 0.01 0.01 0.02 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0 0.01
so2:ppm - 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 - - -

Saint-Jean-Baptiste

2016-03   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2016-05 2016-04 2016-03
o3:ppm 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.03 0.03 0.03
no2:ppm 0 0 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 - - -
pm25 3.3 5.4 7.2 12 9 8 7.3 6.2 5.6 5.4 8.6 6.3 5.2 5.7 8.4 7.9 9.2 9.7 7.6 - - -
so2:ppm 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - -

Sainte-Anne-de-Belle

2016-03   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2016-05 2016-04 2016-03
o3:ppm 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.04 0.03 0.03 0.02 0.02 0.04 0.04 0.03
no2:ppm 0 0 0.01 0.01 0.01 0.01 0.01 0.01 0 0 0 0 0 0 0.01 0.01 0.01 0.01 0.01 - - -
pm25 3.6 6 6.4 10 7.6 7.1 6.3 5.4 4.3 5.1 7.5 4 3.6 3.6 6.8 7 7.2 8.1 5.7 - - -
so2:ppm - 0 0 0 0 0 0 0 - 0 - 0 - - 0 0 0 0 - - - -

St-Dominique

2018-11   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11
pm25 3.6 5.2 6.3 10 8.3 7.5 6.7 6.2 5.8 5.8 8.1 6 5.3 5.4 8 7.5 8.3 8.8 7.4

York-Roberval

2018-11   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11
pm25 2.8 5 7.4 12 9.7 8.8 9.1 8.2 6.8 7.1 12 10 7.5 6.2 9 8.8 9.3 8.9 7.5

* Pollution data source: https://openaq.org (AirNow) The data is licensed under CC-By 4.0