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
8.5 µg/m³
WHO guideline 15
PM10
8.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 AM
💨
PM2.5 8.5 µg/m³
53Moderate
2:00 AM
💨
PM2.5 9.5 µg/m³
53Moderate
3:00 AM
💨
PM2.5 3.9 µg/m³
45Good
4:00 AM
💨
PM2.5 6 µg/m³
36Good
5:00 AM
💨
PM2.5 6.7 µg/m³
30Good
6:00 AM
💨
PM2.5 6.3 µg/m³
28Good
7:00 AM
💨
PM2.5 6.3 µg/m³
30Good
8:00 AM
💨
PM2.5 6.6 µg/m³
32Good
9:00 AM
💨
PM2.5 6 µg/m³
33Good
10:00 AM
💨
PM2.5 5.6 µg/m³
35Good
11:00 AM
💨
PM2.5 5.7 µg/m³
38Good
12:00 PM
💨
PM2.5 6 µg/m³
43Good
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
73
Fri
💨
Moderate · UV High
78
Sat
💨
Moderate · UV High
73