Air quality in Granite Falls
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
6.5 µg/m³
WHO guideline 15
PM10
6.9 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 PM
💨
PM2.5 6.5 µg/m³
44Good
2:00 PM
💨
PM2.5 7 µg/m³
47Good
3:00 PM
💨
PM2.5 6.5 µg/m³
47Good
4:00 PM
💨
PM2.5 6.3 µg/m³
47Good
5:00 PM
💨
PM2.5 6.1 µg/m³
46Good
6:00 PM
💨
PM2.5 5.8 µg/m³
44Good
7:00 PM
💨
PM2.5 5.3 µg/m³
43Good
8:00 PM
💨
PM2.5 4.9 µg/m³
40Good
9:00 PM
💨
PM2.5 4.5 µg/m³
37Good
10:00 PM
💨
PM2.5 4.1 µg/m³
34Good
11:00 PM
💨
PM2.5 3.7 µg/m³
34Good
12:00 AM
💨
PM2.5 3.4 µg/m³
33Good
Next few days
daily max · US EPA AQI