Air quality in Crystal City
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
6.4 µg/m³
WHO guideline 15
PM10
6.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
9:00 AM
💨
PM2.5 6.4 µg/m³
33Good
10:00 AM
💨
PM2.5 6.7 µg/m³
41Good
11:00 AM
💨
PM2.5 6 µg/m³
47Good
12:00 PM
💨
PM2.5 6 µg/m³
56Moderate
1:00 PM
💨
PM2.5 6.1 µg/m³
68Moderate
2:00 PM
💨
PM2.5 6.1 µg/m³
73Moderate
3:00 PM
💨
PM2.5 6 µg/m³
71Moderate
4:00 PM
💨
PM2.5 5.8 µg/m³
66Moderate
5:00 PM
💨
PM2.5 5.7 µg/m³
58Moderate
6:00 PM
💨
PM2.5 5.7 µg/m³
48Good
7:00 PM
💨
PM2.5 6.6 µg/m³
45Good
8:00 PM
💨
PM2.5 9.2 µg/m³
39Good
Next few days
daily max · US EPA AQI
Sun
💨
Moderate · UV High
73
Mon
💨
Unhealthy for Sensitive Groups · UV Very high
108
Tue
💨
Moderate · UV Very high
95
Wed
💨
Unhealthy · UV High
157
Thu
💨
Moderate · UV Very high
73