Air quality in Umatilla
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 µg/m³
WHO guideline 15
PM10
9.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 PM
💨
PM2.5 9 µg/m³
65Moderate
9:00 PM
💨
PM2.5 10.5 µg/m³
53Moderate
10:00 PM
💨
PM2.5 11.9 µg/m³
50Good
11:00 PM
💨
PM2.5 13.2 µg/m³
53Moderate
12:00 AM
💨
PM2.5 14.6 µg/m³
56Moderate
1:00 AM
💨
PM2.5 15.4 µg/m³
58Moderate
2:00 AM
💨
PM2.5 15.7 µg/m³
59Moderate
3:00 AM
💨
PM2.5 15.5 µg/m³
58Moderate
4:00 AM
💨
PM2.5 15.3 µg/m³
58Moderate
5:00 AM
💨
PM2.5 15.1 µg/m³
57Moderate
6:00 AM
💨
PM2.5 15 µg/m³
57Moderate
7:00 AM
💨
PM2.5 14.8 µg/m³
57Moderate
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV Very high
83
Wed
💨
Moderate · UV Very high
80
Thu
💨
Moderate · UV Very high
58
Fri
💨
Moderate · UV Very high
66
Sat
💨
Moderate · UV Very high
74