Air quality in Châteauguay
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
8.3 µg/m³
WHO guideline 15
PM10
8.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
10:00 AM
💨
PM2.5 8.3 µg/m³
35Good
11:00 AM
💨
PM2.5 5.9 µg/m³
30Good
12:00 PM
💨
PM2.5 5.7 µg/m³
34Good
1:00 PM
💨
PM2.5 5.4 µg/m³
38Good
2:00 PM
💨
PM2.5 5.1 µg/m³
41Good
3:00 PM
💨
PM2.5 5.1 µg/m³
43Good
4:00 PM
💨
PM2.5 5.3 µg/m³
44Good
5:00 PM
💨
PM2.5 5.5 µg/m³
43Good
6:00 PM
💨
PM2.5 6.1 µg/m³
36Good
7:00 PM
💨
PM2.5 8.1 µg/m³
34Good
8:00 PM
💨
PM2.5 11.4 µg/m³
48Good
9:00 PM
💨
PM2.5 12.6 µg/m³
52Moderate
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV High
52
Tue
💨
Good · UV Moderate
47
Wed
💨
Good · UV Moderate
36
Thu
💨
Good · UV Moderate
44
Fri
💨
Good · UV Moderate
23