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.
US AQI · EPA
126
Unhealthy for Sensitive Groups
PM2.5
14.4 µg/m³
WHO guideline 15
PM10
15 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
2:00 PM
💨
PM2.5 14.4 µg/m³
126Unhealthy for Sensitive Groups
3:00 PM
💨
PM2.5 14 µg/m³
133Unhealthy for Sensitive Groups
4:00 PM
💨
PM2.5 13.9 µg/m³
135Unhealthy for Sensitive Groups
5:00 PM
💨
PM2.5 13.8 µg/m³
126Unhealthy for Sensitive Groups
6:00 PM
💨
PM2.5 15.1 µg/m³
103Unhealthy for Sensitive Groups
7:00 PM
💨
PM2.5 15.3 µg/m³
73Moderate
8:00 PM
💨
PM2.5 16.9 µg/m³
61Moderate
9:00 PM
💨
PM2.5 17.6 µg/m³
63Moderate
10:00 PM
💨
PM2.5 17.8 µg/m³
63Moderate
11:00 PM
💨
PM2.5 16.2 µg/m³
60Moderate
12:00 AM
💨
PM2.5 13.7 µg/m³
54Moderate
1:00 AM
💨
PM2.5 12.3 µg/m³
51Moderate
Next few days
daily max · US EPA AQI
Wed
💨
Unhealthy for Sensitive Groups · UV High
135
Thu
💨
Moderate · UV High
93
Fri
💨
Moderate · UV High
70