Air quality in Portage
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
6.8 µg/m³
WHO guideline 15
PM10
7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
4:00 PM
💨
PM2.5 6.8 µg/m³
46Good
5:00 PM
💨
PM2.5 7.8 µg/m³
46Good
6:00 PM
💨
PM2.5 8 µg/m³
45Good
7:00 PM
💨
PM2.5 7.7 µg/m³
43Good
8:00 PM
💨
PM2.5 6.9 µg/m³
41Good
9:00 PM
💨
PM2.5 6 µg/m³
38Good
10:00 PM
💨
PM2.5 5.3 µg/m³
35Good
11:00 PM
💨
PM2.5 4.8 µg/m³
33Good
12:00 AM
💨
PM2.5 4.6 µg/m³
31Good
1:00 AM
💨
PM2.5 4.7 µg/m³
30Good
2:00 AM
💨
PM2.5 5 µg/m³
28Good
3:00 AM
💨
PM2.5 5.4 µg/m³
27Good
Next few days
daily max · US EPA AQI
Wed
💨
Moderate · UV High
54