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
5.5 µg/m³
WHO guideline 15
PM10
6.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
5:00 AM
💨
PM2.5 5.5 µg/m³
24Good
6:00 AM
💨
PM2.5 5.3 µg/m³
25Good
7:00 AM
💨
PM2.5 5.2 µg/m³
27Good
8:00 AM
💨
PM2.5 5.7 µg/m³
30Good
9:00 AM
💨
PM2.5 5.3 µg/m³
36Good
10:00 AM
💨
PM2.5 5.4 µg/m³
43Good
11:00 AM
💨
PM2.5 5.4 µg/m³
48Good
12:00 PM
💨
PM2.5 5.4 µg/m³
50Good
1:00 PM
💨
PM2.5 5.3 µg/m³
53Moderate
2:00 PM
💨
PM2.5 5.3 µg/m³
55Moderate
3:00 PM
💨
PM2.5 5.3 µg/m³
55Moderate
4:00 PM
💨
PM2.5 5.7 µg/m³
53Moderate
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV Very high
55
Tue
💨
Moderate · UV Very high
60
Wed
💨
Good · UV Very high
47
Thu
💨
Good · UV Very high
50
Fri
💨
Good · UV Very high
26