Air quality in Crested Butte
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
1.4 µg/m³
WHO guideline 15
PM10
2.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
5:00 PM
💨
PM2.5 1.4 µg/m³
47Good
6:00 PM
💨
PM2.5 1.5 µg/m³
45Good
7:00 PM
💨
PM2.5 1.4 µg/m³
41Good
8:00 PM
💨
PM2.5 1.2 µg/m³
35Good
9:00 PM
💨
PM2.5 1.1 µg/m³
30Good
10:00 PM
💨
PM2.5 1.3 µg/m³
26Good
11:00 PM
💨
PM2.5 1.5 µg/m³
24Good
12:00 AM
💨
PM2.5 1.7 µg/m³
22Good
1:00 AM
💨
PM2.5 1.8 µg/m³
21Good
2:00 AM
💨
PM2.5 1.8 µg/m³
21Good
3:00 AM
💨
PM2.5 1.8 µg/m³
21Good
4:00 AM
💨
PM2.5 1.9 µg/m³
19Good
Next few days
daily max · US EPA AQI
Fri
💨
Good · UV Moderate
47
Sat
💨
Good · UV Moderate
46
Sun
💨
Moderate · UV Moderate
58
Mon
💨
Moderate · UV Moderate
70
Tue
💨
Good · UV Moderate
28