Air quality in Saint-Jean-sur-Richelieu
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
9.7 µg/m³
WHO guideline 15
PM10
9.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
9:00 PM
💨
PM2.5 9.7 µg/m³
40Good
10:00 PM
💨
PM2.5 8.8 µg/m³
37Good
11:00 PM
💨
PM2.5 8.1 µg/m³
34Good
12:00 AM
💨
PM2.5 7.6 µg/m³
32Good
1:00 AM
💨
PM2.5 7.2 µg/m³
30Good
2:00 AM
💨
PM2.5 6.8 µg/m³
28Good
3:00 AM
💨
PM2.5 6.6 µg/m³
28Good
4:00 AM
💨
PM2.5 6.6 µg/m³
28Good
5:00 AM
💨
PM2.5 6.9 µg/m³
29Good
6:00 AM
💨
PM2.5 7.2 µg/m³
30Good
7:00 AM
💨
PM2.5 7.3 µg/m³
30Good
8:00 AM
💨
PM2.5 7.4 µg/m³
31Good
Next few days
daily max · US EPA AQI
Fri
💨
Good · UV Moderate
48
Sun
💨
Moderate · UV Moderate
55
Mon
💨
Moderate · UV High
54