Air quality in Martinsburg
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
15.2 µg/m³
WHO guideline 15
PM10
15.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 AM
💨
PM2.5 15.2 µg/m³
58Moderate
2:00 AM
💨
PM2.5 14.9 µg/m³
57Moderate
3:00 AM
💨
PM2.5 15.1 µg/m³
57Moderate
4:00 AM
💨
PM2.5 13.9 µg/m³
55Moderate
5:00 AM
💨
PM2.5 13 µg/m³
53Moderate
6:00 AM
💨
PM2.5 12.3 µg/m³
51Moderate
7:00 AM
💨
PM2.5 11.6 µg/m³
48Good
8:00 AM
💨
PM2.5 10.3 µg/m³
43Good
9:00 AM
💨
PM2.5 8.6 µg/m³
40Good
10:00 AM
💨
PM2.5 8.4 µg/m³
44Good
11:00 AM
💨
PM2.5 6.6 µg/m³
49Good
12:00 PM
💨
PM2.5 6.8 µg/m³
55Moderate
Next few days
daily max · US EPA AQI
Wed
💨
Moderate · UV Very high
71
Thu
💨
Moderate · UV High
76
Fri
💨
Moderate · UV High
55