Air quality in Charleston
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
5.3 µg/m³
WHO guideline 15
PM10
5.6 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 AM
💨
PM2.5 5.3 µg/m³
25Good
9:00 AM
💨
PM2.5 5.8 µg/m³
33Good
10:00 AM
💨
PM2.5 6.4 µg/m³
40Good
11:00 AM
💨
PM2.5 6.8 µg/m³
45Good
12:00 PM
💨
PM2.5 7.3 µg/m³
50Good
1:00 PM
💨
PM2.5 7.7 µg/m³
58Moderate
2:00 PM
💨
PM2.5 8.1 µg/m³
63Moderate
3:00 PM
💨
PM2.5 8.4 µg/m³
65Moderate
4:00 PM
💨
PM2.5 8.6 µg/m³
61Moderate
5:00 PM
💨
PM2.5 8.7 µg/m³
51Moderate
6:00 PM
💨
PM2.5 8.7 µg/m³
47Good
7:00 PM
💨
PM2.5 8.1 µg/m³
43Good
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV Very high
65
Tue
💨
Moderate · UV Very high
90
Wed
💨
Unhealthy for Sensitive Groups · UV High
131
Thu
💨
Unhealthy for Sensitive Groups · UV Very high
126
Fri
💨
Good · UV Very high
33