Air quality in Decatur
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
11.4 µg/m³
WHO guideline 15
PM10
12.1 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
7:00 PM
💨
PM2.5 11.4 µg/m³
48Good
8:00 PM
💨
PM2.5 10 µg/m³
42Good
9:00 PM
💨
PM2.5 9.2 µg/m³
38Good
10:00 PM
💨
PM2.5 10.4 µg/m³
43Good
11:00 PM
💨
PM2.5 11.1 µg/m³
46Good
12:00 AM
💨
PM2.5 11.6 µg/m³
48Good
1:00 AM
💨
PM2.5 10.9 µg/m³
45Good
2:00 AM
💨
PM2.5 6.7 µg/m³
28Good
3:00 AM
💨
PM2.5 6 µg/m³
25Good
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 6.9 µg/m³
29Good
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV Moderate
76
Fri
💨
Moderate · UV Very high
59
Sat
💨
Moderate · UV Very high
68
Sun
💨
Moderate · UV High
55
Mon
💨
Good · UV Very high
38