Air quality in Severance
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
7.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
10:00 AM
💨
PM2.5 5.1 µg/m³
32Good
11:00 AM
💨
PM2.5 5.1 µg/m³
41Good
12:00 PM
💨
PM2.5 5.5 µg/m³
48Good
1:00 PM
💨
PM2.5 5.5 µg/m³
51Moderate
2:00 PM
💨
PM2.5 7.3 µg/m³
51Moderate
3:00 PM
💨
PM2.5 5.4 µg/m³
51Moderate
4:00 PM
💨
PM2.5 6.4 µg/m³
53Moderate
5:00 PM
💨
PM2.5 5.2 µg/m³
55Moderate
6:00 PM
💨
PM2.5 4.9 µg/m³
50Good
7:00 PM
💨
PM2.5 5.2 µg/m³
46Good
8:00 PM
💨
PM2.5 6.4 µg/m³
39Good
9:00 PM
💨
PM2.5 7.8 µg/m³
34Good
Next few days
daily max · US EPA AQI
Wed
💨
Moderate · UV Very high
55
Thu
💨
Moderate · UV Very high
61
Fri
💨
Moderate · UV Very high
60
Sat
💨
Good · UV Very high
50
Sun
💨
Moderate · UV Very high
51