Air quality in Ukiah
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
9.8 µg/m³
WHO guideline 15
PM10
12.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
7:00 AM
💨
PM2.5 9.8 µg/m³
41Good
8:00 AM
💨
PM2.5 8.9 µg/m³
37Good
9:00 AM
💨
PM2.5 7.4 µg/m³
31Good
10:00 AM
💨
PM2.5 6.4 µg/m³
36Good
11:00 AM
💨
PM2.5 5.6 µg/m³
42Good
12:00 PM
💨
PM2.5 5.1 µg/m³
43Good
1:00 PM
💨
PM2.5 4.8 µg/m³
41Good
2:00 PM
💨
PM2.5 4.6 µg/m³
40Good
3:00 PM
💨
PM2.5 4.4 µg/m³
38Good
4:00 PM
💨
PM2.5 4.4 µg/m³
37Good
5:00 PM
💨
PM2.5 4.5 µg/m³
35Good
6:00 PM
💨
PM2.5 4.7 µg/m³
33Good
Next few days
daily max · US EPA AQI
Mon
💨
Good · UV Very high
43
Tue
💨
Good · UV Very high
42
Wed
💨
Good · UV Very high
41
Thu
💨
Good · UV Very high
34
Fri
💨
Good · UV Very high
21