Air quality in Golden
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
3.9 µg/m³
WHO guideline 15
PM10
6.6 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
11:00 AM
💨
PM2.5 3.9 µg/m³
63Moderate
12:00 PM
💨
PM2.5 3.7 µg/m³
83Moderate
1:00 PM
💨
PM2.5 3.5 µg/m³
86Moderate
2:00 PM
💨
PM2.5 5.6 µg/m³
83Moderate
3:00 PM
💨
PM2.5 4.3 µg/m³
80Moderate
4:00 PM
💨
PM2.5 4.7 µg/m³
85Moderate
5:00 PM
💨
PM2.5 5.3 µg/m³
90Moderate
6:00 PM
💨
PM2.5 5.7 µg/m³
88Moderate
7:00 PM
💨
PM2.5 6.4 µg/m³
71Moderate
8:00 PM
💨
PM2.5 8.4 µg/m³
50Good
9:00 PM
💨
PM2.5 9.6 µg/m³
42Good
10:00 PM
💨
PM2.5 11 µg/m³
46Good
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV Very high
90
Wed
💨
Moderate · UV Very high
100
Thu
💨
Moderate · UV Very high
100
Fri
💨
Moderate · UV High
88