Air quality in Fairfax Station
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
7 µg/m³
WHO guideline 15
PM10
8.1 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
5:00 AM
💨
PM2.5 7 µg/m³
41Good
6:00 AM
💨
PM2.5 7 µg/m³
37Good
7:00 AM
💨
PM2.5 7.9 µg/m³
34Good
8:00 AM
💨
PM2.5 9.8 µg/m³
41Good
9:00 AM
💨
PM2.5 12 µg/m³
50Good
10:00 AM
💨
PM2.5 14.4 µg/m³
88Moderate
11:00 AM
💨
PM2.5 15.8 µg/m³
128Unhealthy for Sensitive Groups
12:00 PM
💨
PM2.5 14.1 µg/m³
133Unhealthy for Sensitive Groups
1:00 PM
💨
PM2.5 12.8 µg/m³
122Unhealthy for Sensitive Groups
2:00 PM
💨
PM2.5 12.4 µg/m³
110Unhealthy for Sensitive Groups
3:00 PM
💨
PM2.5 12.4 µg/m³
104Unhealthy for Sensitive Groups
4:00 PM
💨
PM2.5 12.7 µg/m³
99Moderate
Next few days
daily max · US EPA AQI
Thu
💨
Unhealthy for Sensitive Groups · UV Very high
133
Fri
💨
Unhealthy for Sensitive Groups · UV High
124
Sat
💨
Moderate · UV Moderate
61