Air quality in Centreville
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
8.5 µg/m³
WHO guideline 15
PM10
10.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
5:00 AM
💨
PM2.5 8.5 µg/m³
35Good
6:00 AM
💨
PM2.5 8.5 µg/m³
35Good
7:00 AM
💨
PM2.5 8.5 µg/m³
35Good
8:00 AM
💨
PM2.5 8.5 µg/m³
35Good
9:00 AM
💨
PM2.5 9.7 µg/m³
40Good
10:00 AM
💨
PM2.5 11.4 µg/m³
48Good
11:00 AM
💨
PM2.5 12.6 µg/m³
52Moderate
12:00 PM
💨
PM2.5 12.5 µg/m³
60Moderate
1:00 PM
💨
PM2.5 12 µg/m³
61Moderate
2:00 PM
💨
PM2.5 11.5 µg/m³
61Moderate
3:00 PM
💨
PM2.5 10.7 µg/m³
60Moderate
4:00 PM
💨
PM2.5 9.8 µg/m³
56Moderate
Next few days
daily max · US EPA AQI
Sun
💨
Moderate · UV High
61
Mon
💨
Unhealthy for Sensitive Groups · UV High
117
Tue
💨
Very Unhealthy · UV High
207
Wed
💨
Unhealthy · UV High
198
Thu
💨
Unhealthy for Sensitive Groups · UV Very high
111