Air quality in Arnold
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
8.3 µg/m³
WHO guideline 15
PM10
8.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 AM
💨
PM2.5 8.3 µg/m³
35Good
2:00 AM
💨
PM2.5 8.2 µg/m³
34Good
3:00 AM
💨
PM2.5 7.9 µg/m³
33Good
4:00 AM
💨
PM2.5 7.5 µg/m³
31Good
5:00 AM
💨
PM2.5 7.1 µg/m³
30Good
6:00 AM
💨
PM2.5 6.9 µg/m³
29Good
7:00 AM
💨
PM2.5 7.4 µg/m³
31Good
8:00 AM
💨
PM2.5 7.9 µg/m³
33Good
9:00 AM
💨
PM2.5 7.3 µg/m³
30Good
10:00 AM
💨
PM2.5 7.1 µg/m³
30Good
11:00 AM
💨
PM2.5 6.3 µg/m³
36Good
12:00 PM
💨
PM2.5 5.6 µg/m³
40Good
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV High
55
Wed
💨
Moderate · UV High
65
Thu
💨
Unhealthy for Sensitive Groups · UV High
111
Fri
💨
Moderate · UV High
69