Air quality in Alpena
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
8.4 µg/m³
WHO guideline 15
PM10
8.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
3:00 AM
💨
PM2.5 8.4 µg/m³
44Good
4:00 AM
💨
PM2.5 8.6 µg/m³
41Good
5:00 AM
💨
PM2.5 8.6 µg/m³
39Good
6:00 AM
💨
PM2.5 8.1 µg/m³
39Good
7:00 AM
💨
PM2.5 7.5 µg/m³
40Good
8:00 AM
💨
PM2.5 6.6 µg/m³
41Good
9:00 AM
💨
PM2.5 5.8 µg/m³
42Good
10:00 AM
💨
PM2.5 4.7 µg/m³
43Good
11:00 AM
💨
PM2.5 3.7 µg/m³
45Good
12:00 PM
💨
PM2.5 2.5 µg/m³
46Good
1:00 PM
💨
PM2.5 1.9 µg/m³
47Good
2:00 PM
💨
PM2.5 1.7 µg/m³
47Good
Next few days
daily max · US EPA AQI
Sat
💨
Good · UV Moderate
48
Sun
💨
Good · UV Moderate
34
Mon
💨
Good · UV Moderate
34