Air quality in Montréal-Ouest
The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.
PM2.5
5.1 µg/m³
WHO guideline 15
PM10
5.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
4:00 PM
💨
PM2.5 5.1 µg/m³
34Good
5:00 PM
💨
PM2.5 5.4 µg/m³
32Good
6:00 PM
💨
PM2.5 5.5 µg/m³
31Good
7:00 PM
💨
PM2.5 5.3 µg/m³
30Good
8:00 PM
💨
PM2.5 5.1 µg/m³
30Good
9:00 PM
💨
PM2.5 4.8 µg/m³
31Good
10:00 PM
💨
PM2.5 4.2 µg/m³
32Good
11:00 PM
💨
PM2.5 4.4 µg/m³
33Good
12:00 AM
💨
PM2.5 4.6 µg/m³
33Good
1:00 AM
💨
PM2.5 4.5 µg/m³
32Good
2:00 AM
💨
PM2.5 4.3 µg/m³
31Good
3:00 AM
💨
PM2.5 4.2 µg/m³
30Good
Next few days
daily max · US EPA AQI
Wed
💨
Good · UV Moderate
38
Thu
💨
Moderate · UV Moderate
66
Fri
💨
Moderate · UV Moderate
56