Air quality in Marengo
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
7.1 µg/m³
WHO guideline 15
PM10
7.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
6:00 AM
💨
PM2.5 7.1 µg/m³
30Good
7:00 AM
💨
PM2.5 7.3 µg/m³
30Good
8:00 AM
💨
PM2.5 6.3 µg/m³
26Good
9:00 AM
💨
PM2.5 6.9 µg/m³
30Good
10:00 AM
💨
PM2.5 6.9 µg/m³
33Good
11:00 AM
💨
PM2.5 6.3 µg/m³
36Good
12:00 PM
💨
PM2.5 5.6 µg/m³
39Good
1:00 PM
💨
PM2.5 5.3 µg/m³
41Good
2:00 PM
💨
PM2.5 5.4 µg/m³
42Good
3:00 PM
💨
PM2.5 5.9 µg/m³
42Good
4:00 PM
💨
PM2.5 6.1 µg/m³
41Good
5:00 PM
💨
PM2.5 5.6 µg/m³
38Good
Next few days
daily max · US EPA AQI
Mon
💨
Good · UV Moderate
43