Laval, Quebec Air Pollution: Real-time Air Quality Index (AQI)

Laval, Quebec
Caserne 17, Montreal
Ile De Montreal - Centre, Quebec
Terrebonne - Secteur Du Parc Vaillant, Quebec
Saint-michel, Montreal
Echangeur Decarie, Montreal
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Laval, Quebec AQI: Laval, Quebec Real-time Air Quality Index (AQI).
30
Good
Updated on Wed. 19:00
temperature: 26°C
currentpast 2 daysminmax
PM2.5 AQI
30Laval, Quebec, Canada PM25 (fine particulate matter) measured by Environnement au Québec. Values are converted to the US EPA AQI standard.2567
O3 AQI
25Laval, Quebec, Canada O3 (ozone) measured by Environnement au Québec. Values are converted to the US EPA AQI standard.1337
NO2 AQI
3Laval, Quebec, Canada NO2 (nitrogen dioxide) measured by Environnement au Québec. Values are converted to the US EPA AQI standard.121
CO AQI
0Laval, Quebec, Canada CO (carbon monoxide) measured by Environnement au Québec. Values are converted to the US EPA AQI standard.00
Temp.
26Laval, Quebec, Canada t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).2235
Pressure
1010Laval, Quebec, Canada p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).10091018
Humidity
77Laval, Quebec, Canada h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).3692
Wind
2Laval, Quebec, Canada w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).06
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Air Quality Forecast
WED 13
29°C
20°C
THU 14
28°C
15°C
FRI 15
26°C
11°C
SAT 16
33°C
11°C
SUN 17
30°C
15°C
MON 18
20°C
10°C
PM2.5
Wednesday 13Thursday 14Friday 15Saturday 16Sunday 17Monday 18
hour
1471013161922147101316192214710131619221471013161922147101316192214710131619
Wind Speed (m/s)
454445435564324455553343332254455444576555557107















































Temp.
21°20°22°24°28°29°23°21°20°17°19°23°27°27°23°16°14°12°15°21°25°26°19°15°13°12°15°24°30°33°27°22°20°20°22°24°27°29°21°15°12°10°14°20°19°14°12°
relative humidity
8494887961527486838468503843456148524633262649647883664334294273879478715633426366725540426786
barometric pressure
10111010101010101009100810081009101010121014101510151015101710191021102210241024102210221022102210221021102010191016101410131013101310141015101510141013101510181019101910191018101610151015
total precipitation
1.11.83.10.40.40.30.10.30.10.20.9
UVI:
4


5:53 ~ 20:09
UVI:
6


5:54 ~ 20:07
UVI:
7


5:55 ~ 20:06
UVI:
7


5:56 ~ 20:04
UVI:
3


5:58 ~ 20:03
UVI:
1


5:59 ~ 20:01
Forecast plotted using timezone -04:00
Latest forecast updates:
Wind: 20 hours ago [Aug 13, 2025 4:45 AM]
fine particulate matter: 10 hours ago [Aug 13, 2025 2:15 PM]
click to view the detailed forecast

Air Quality Data provided by: the Environnement au Québec (mddep.gouv.qc.ca)

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News (Jul 2014): The Air Quality data for Quebec 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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