Air quality in Huntsville
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
20.7 µg/m³
WHO guideline 15
PM10
20.8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 AM
💨
PM2.5 20.7 µg/m³
69Moderate
9:00 AM
💨
PM2.5 13.9 µg/m³
55Moderate
10:00 AM
💨
PM2.5 12.6 µg/m³
86Moderate
11:00 AM
💨
PM2.5 12.4 µg/m³
103Unhealthy for Sensitive Groups
12:00 PM
💨
PM2.5 11.9 µg/m³
108Unhealthy for Sensitive Groups
1:00 PM
💨
PM2.5 11.7 µg/m³
106Unhealthy for Sensitive Groups
2:00 PM
💨
PM2.5 10.7 µg/m³
104Unhealthy for Sensitive Groups
3:00 PM
💨
PM2.5 10.3 µg/m³
100Moderate
4:00 PM
💨
PM2.5 10.1 µg/m³
91Moderate
5:00 PM
💨
PM2.5 10.4 µg/m³
78Moderate
6:00 PM
💨
PM2.5 10.5 µg/m³
63Moderate
7:00 PM
💨
PM2.5 11.2 µg/m³
50Good
Next few days
daily max · US EPA AQI
Thu
💨
Unhealthy for Sensitive Groups · UV Very high
108
Fri
💨
Unhealthy for Sensitive Groups · UV Very high
108
Sat
💨
Unhealthy for Sensitive Groups · UV Very high
103
Sun
💨
Moderate · UV Very high
80
Mon
💨
Good · UV Very high
38