Aéroport de Montréal, Montreal Air Pollution:
Real-time Air Quality Index (AQI)

Aeroport De Montreal, Montreal
Dorval, Montreal
Ile De Montreal - Centre, Quebec
Echangeur Decarie, Montreal
Duncan, Montreal
Laval, Quebec
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Aéroport de Montréal, Montreal AQI: Aéroport de Montréal, Montreal Real-time Air Quality Index (AQI).
-
no data
Updated on Thursday 17:00
temperature: -°C
currentpast 2 daysminmax
PM2.5 AQI
47Aéroport de Montréal, Montreal, Canada PM25 (fine particulate matter) measured by Ville de Montreal - Réseau de surveillance de la qualité de l air. Values are converted to the US EPA AQI standard.3073
O3 AQI
21Aéroport de Montréal, Montreal, Canada O3 (ozone) measured by Ville de Montreal - Réseau de surveillance de la qualité de l air. Values are converted to the US EPA AQI standard.837
NO2 AQI
4Aéroport de Montréal, Montreal, Canada NO2 (nitrogen dioxide) measured by Ville de Montreal - Réseau de surveillance de la qualité de l air. Values are converted to the US EPA AQI standard.426
SO2 AQI
5Aéroport de Montréal, Montreal, Canada SO2 (sulfur dioxide) measured by Ville de Montreal - Réseau de surveillance de la qualité de l air. Values are converted to the US EPA AQI standard.510
CO AQI
-Aéroport de Montréal, Montreal, Canada CO (carbon monoxide) measured by Ville de Montreal - Réseau de surveillance de la qualité de l air. Values are converted to the US EPA AQI standard.66
Temp.
26Aéroport de Montréal, Montreal, Canada t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).2038
Pressure
1016Aéroport de Montréal, Montreal, Canada p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).10081016
Humidity
61Aéroport de Montréal, Montreal, Canada h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).4496
Wind
3Aéroport de Montréal, Montreal, Canada w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).05
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Air Quality Forecast
THU 14
28°C
19°C
FRI 15
29°C
15°C
SAT 16
31°C
16°C
SUN 17
23°C
14°C
MON 18
23°C
11°C
TUE 19
24°C
13°C
PM2.5
Thursday 14Friday 15Saturday 16Sunday 17Monday 18Tuesday 19
hour
1471013161922147101316192214710131619221471013161922147101316192214710131619
Wind Speed (m/s)
35542243344322222222325545564234333332313445434















































Temp.
21°20°21°22°28°28°24°20°17°15°17°23°27°28°23°20°18°16°19°26°29°31°27°24°22°21°19°17°15°19°16°16°13°12°14°19°22°23°19°17°15°13°15°21°23°24°20°
relative humidity
8274625535283245505447282019334049545035302944476377898893718050565947352726385056594832272737
barometric pressure
10101012101410161015101610181020102110221024102410221021102110221021102110211020101710151014101210121011101310151016101610171020102110221024102410231022102210231023102310241023102210201020
total precipitation
NaNNaNNaN0.80.94.80.30.3
UVI:
6


5:54 ~ 20:07
UVI:
8


5:56 ~ 20:06
UVI:
7


5:57 ~ 20:04
UVI:
3


5:58 ~ 20:02
UVI:
7


5:59 ~ 20:01
UVI:
1


6:00 ~ 19:59
Forecast plotted using timezone -04:00
Latest forecast updates:
Wind: an hour ago [Aug 14, 2025 10:45 PM]
fine particulate matter: 9 hours ago [Aug 14, 2025 2:25 PM]
click to view the detailed forecast

Air Quality Data provided by: Ville de Montreal - Réseau de surveillance de la qualité de l'air (ville.montreal.qc.ca)

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News (Jul 2014): The Air Quality data for Montreal is converted from the IQA standard to the US-EPA standard (scale 0-500). Check this article for more information

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About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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