Air quality in Winterset
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
4.3 µg/m³
WHO guideline 15
PM10
4.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
3:00 AM
💨
PM2.5 4.3 µg/m³
18Good
4:00 AM
💨
PM2.5 3.9 µg/m³
16Good
5:00 AM
💨
PM2.5 3.9 µg/m³
16Good
6:00 AM
💨
PM2.5 4.6 µg/m³
19Good
7:00 AM
💨
PM2.5 5.4 µg/m³
23Good
8:00 AM
💨
PM2.5 5.4 µg/m³
23Good
9:00 AM
💨
PM2.5 4.8 µg/m³
23Good
10:00 AM
💨
PM2.5 6.2 µg/m³
29Good
11:00 AM
💨
PM2.5 7.2 µg/m³
34Good
12:00 PM
💨
PM2.5 6.9 µg/m³
39Good
1:00 PM
💨
PM2.5 6.2 µg/m³
43Good
2:00 PM
💨
PM2.5 5.7 µg/m³
44Good
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV High
63