Air quality in Colfax
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
6.9 µg/m³
WHO guideline 15
PM10
8.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
6:00 PM
💨
PM2.5 6.9 µg/m³
61Moderate
7:00 PM
💨
PM2.5 7.1 µg/m³
53Moderate
8:00 PM
💨
PM2.5 7.8 µg/m³
48Good
9:00 PM
💨
PM2.5 8.4 µg/m³
43Good
10:00 PM
💨
PM2.5 9 µg/m³
38Good
11:00 PM
💨
PM2.5 9.1 µg/m³
38Good
12:00 AM
💨
PM2.5 8.8 µg/m³
37Good
1:00 AM
💨
PM2.5 8.3 µg/m³
35Good
2:00 AM
💨
PM2.5 7.9 µg/m³
33Good
3:00 AM
💨
PM2.5 7.6 µg/m³
32Good
4:00 AM
💨
PM2.5 7.4 µg/m³
31Good
5:00 AM
💨
PM2.5 7.3 µg/m³
30Good
Next few days
daily max · US EPA AQI
Sun
💨
Moderate · UV High
70
Mon
💨
Moderate · UV High
80
Tue
💨
Moderate · UV High
61
Wed
💨
Moderate · UV High
63