Air quality in Hallettsville
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
14.1 µg/m³
WHO guideline 15
PM10
19.6 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
4:00 AM
💨
PM2.5 14.1 µg/m³
55Moderate
5:00 AM
💨
PM2.5 13.2 µg/m³
53Moderate
6:00 AM
💨
PM2.5 12.8 µg/m³
52Moderate
7:00 AM
💨
PM2.5 12.5 µg/m³
52Moderate
8:00 AM
💨
PM2.5 13 µg/m³
53Moderate
9:00 AM
💨
PM2.5 13.2 µg/m³
53Moderate
10:00 AM
💨
PM2.5 12.6 µg/m³
52Moderate
11:00 AM
💨
PM2.5 11.6 µg/m³
48Good
12:00 PM
💨
PM2.5 10.9 µg/m³
45Good
1:00 PM
💨
PM2.5 10.6 µg/m³
44Good
2:00 PM
💨
PM2.5 10.4 µg/m³
43Good
3:00 PM
💨
PM2.5 10.3 µg/m³
43Good
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV Very high
57
Tue
💨
Good · UV Very high
39
Wed
💨
Good · UV Very high
37
Thu
💨
Good · UV Very high
43
Fri
💨
Good · UV Very high
25