Air quality in Manassas
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
6.7 µg/m³
WHO guideline 15
PM10
6.8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
11:00 PM
💨
PM2.5 6.7 µg/m³
34Good
12:00 AM
💨
PM2.5 6.9 µg/m³
32Good
1:00 AM
💨
PM2.5 6.9 µg/m³
30Good
2:00 AM
💨
PM2.5 6.9 µg/m³
29Good
3:00 AM
💨
PM2.5 6.7 µg/m³
28Good
4:00 AM
💨
PM2.5 6.5 µg/m³
27Good
5:00 AM
💨
PM2.5 6.3 µg/m³
26Good
6:00 AM
💨
PM2.5 6.4 µg/m³
27Good
7:00 AM
💨
PM2.5 6.9 µg/m³
29Good
8:00 AM
💨
PM2.5 8.4 µg/m³
35Good
9:00 AM
💨
PM2.5 9.4 µg/m³
39Good
10:00 AM
💨
PM2.5 10 µg/m³
49Good
Next few days
daily max · US EPA AQI
Sun
💨
Moderate · UV High
64
Mon
💨
Moderate · UV High
99
Tue
💨
Unhealthy for Sensitive Groups · UV Very high
108
Wed
💨
Unhealthy for Sensitive Groups · UV Very high
144
Thu
💨
Unhealthy for Sensitive Groups · UV Very high
110