Air quality in Westmount
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
3.5 µg/m³
WHO guideline 15
PM10
3.6 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 AM
💨
PM2.5 3.5 µg/m³
15Good
9:00 AM
💨
PM2.5 2.8 µg/m³
18Good
10:00 AM
💨
PM2.5 1.8 µg/m³
26Good
11:00 AM
💨
PM2.5 2.1 µg/m³
34Good
12:00 PM
💨
PM2.5 3.3 µg/m³
39Good
1:00 PM
💨
PM2.5 4.4 µg/m³
43Good
2:00 PM
💨
PM2.5 5.3 µg/m³
47Good
3:00 PM
💨
PM2.5 6.2 µg/m³
55Moderate
4:00 PM
💨
PM2.5 6.9 µg/m³
70Moderate
5:00 PM
💨
PM2.5 7.5 µg/m³
73Moderate
6:00 PM
💨
PM2.5 7.9 µg/m³
58Moderate
7:00 PM
💨
PM2.5 8.4 µg/m³
46Good
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV High
73
Sat
💨
Moderate · UV High
71
Mon
💨
Good · UV Moderate
30