Air quality in Marion
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
4 µg/m³
WHO guideline 15
PM10
4.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
5:00 PM
💨
PM2.5 4 µg/m³
48Good
6:00 PM
💨
PM2.5 4 µg/m³
47Good
7:00 PM
💨
PM2.5 4.1 µg/m³
43Good
8:00 PM
💨
PM2.5 4.8 µg/m³
40Good
9:00 PM
💨
PM2.5 5.8 µg/m³
38Good
10:00 PM
💨
PM2.5 6.4 µg/m³
37Good
11:00 PM
💨
PM2.5 6.7 µg/m³
36Good
12:00 AM
💨
PM2.5 6.9 µg/m³
34Good
1:00 AM
💨
PM2.5 7.2 µg/m³
32Good
2:00 AM
💨
PM2.5 7.9 µg/m³
33Good
3:00 AM
💨
PM2.5 8.6 µg/m³
36Good
4:00 AM
💨
PM2.5 9.7 µg/m³
40Good
Next few days
daily max · US EPA AQI
Sun
💨
Good · UV Very high
50
Mon
💨
Moderate · UV Very high
65
Tue
💨
Moderate · UV Very high
80
Wed
💨
Moderate · UV Very high
81
Thu
💨
Good · UV Very high
39