Air quality in Choteau
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
9.6 µg/m³
WHO guideline 15
PM10
10.1 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
2:00 PM
💨
PM2.5 9.6 µg/m³
47Good
3:00 PM
💨
PM2.5 9.3 µg/m³
49Good
4:00 PM
💨
PM2.5 9.2 µg/m³
48Good
5:00 PM
💨
PM2.5 9.5 µg/m³
48Good
6:00 PM
💨
PM2.5 9.9 µg/m³
49Good
7:00 PM
💨
PM2.5 9.9 µg/m³
44Good
8:00 PM
💨
PM2.5 9.7 µg/m³
40Good
9:00 PM
💨
PM2.5 9.7 µg/m³
40Good
10:00 PM
💨
PM2.5 11 µg/m³
46Good
11:00 PM
💨
PM2.5 14.3 µg/m³
56Moderate
12:00 AM
💨
PM2.5 18.9 µg/m³
65Moderate
1:00 AM
💨
PM2.5 24.8 µg/m³
78Moderate
Next few days
daily max · US EPA AQI
Wed
💨
Moderate · UV High
56
Thu
💨
Unhealthy for Sensitive Groups · UV Moderate
124
Fri
💨
Moderate · UV High
75
Sat
💨
Moderate · UV High
72