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
12.2 µg/m³
WHO guideline 15
PM10
12.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
7:00 AM
💨
PM2.5 12.2 µg/m³
51Moderate
8:00 AM
💨
PM2.5 13.9 µg/m³
55Moderate
9:00 AM
💨
PM2.5 15.4 µg/m³
58Moderate
10:00 AM
💨
PM2.5 15.8 µg/m³
59Moderate
11:00 AM
💨
PM2.5 16 µg/m³
59Moderate
12:00 PM
💨
PM2.5 17.4 µg/m³
88Moderate
1:00 PM
💨
PM2.5 19 µg/m³
122Unhealthy for Sensitive Groups
2:00 PM
💨
PM2.5 19.7 µg/m³
147Unhealthy for Sensitive Groups
3:00 PM
💨
PM2.5 18.7 µg/m³
152Unhealthy
4:00 PM
💨
PM2.5 17.9 µg/m³
149Unhealthy for Sensitive Groups
5:00 PM
💨
PM2.5 16.4 µg/m³
133Unhealthy for Sensitive Groups
6:00 PM
💨
PM2.5 14.8 µg/m³
99Moderate
Next few days
daily max · US EPA AQI
Thu
💨
Unhealthy · UV Very high
152
Fri
💨
Moderate · UV Moderate
86
Sat
💨
Moderate · UV High
85