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
8.5 µg/m³
WHO guideline 15
PM10
8.9 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
4:00 AM
💨
PM2.5 8.5 µg/m³
35Good
5:00 AM
💨
PM2.5 9 µg/m³
38Good
6:00 AM
💨
PM2.5 9.7 µg/m³
40Good
7:00 AM
💨
PM2.5 10.6 µg/m³
44Good
8:00 AM
💨
PM2.5 11.5 µg/m³
48Good
9:00 AM
💨
PM2.5 12.2 µg/m³
60Moderate
10:00 AM
💨
PM2.5 12 µg/m³
108Unhealthy for Sensitive Groups
11:00 AM
💨
PM2.5 11.9 µg/m³
129Unhealthy for Sensitive Groups
12:00 PM
💨
PM2.5 11.7 µg/m³
135Unhealthy for Sensitive Groups
1:00 PM
💨
PM2.5 11.7 µg/m³
135Unhealthy for Sensitive Groups
2:00 PM
💨
PM2.5 11.3 µg/m³
133Unhealthy for Sensitive Groups
3:00 PM
💨
PM2.5 10.6 µg/m³
124Unhealthy for Sensitive Groups
Next few days
daily max · US EPA AQI
Sat
💨
Unhealthy for Sensitive Groups · UV High
135
Sun
💨
Moderate · UV Very high
83
Mon
💨
Moderate · UV Low
81
Tue
💨
Unhealthy for Sensitive Groups · UV Very high
113
Wed
💨
Moderate · UV Very high
52