Air quality in Back of the Hill
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
4 µg/m³
WHO guideline 15
PM10
4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
3:00 PM
💨
PM2.5 4 µg/m³
49Good
4:00 PM
💨
PM2.5 4.2 µg/m³
47Good
5:00 PM
💨
PM2.5 4.5 µg/m³
43Good
6:00 PM
💨
PM2.5 5.3 µg/m³
37Good
7:00 PM
💨
PM2.5 6.7 µg/m³
29Good
8:00 PM
💨
PM2.5 8.1 µg/m³
34Good
9:00 PM
💨
PM2.5 7.9 µg/m³
33Good
10:00 PM
💨
PM2.5 7.5 µg/m³
31Good
11:00 PM
💨
PM2.5 6.9 µg/m³
29Good
12:00 AM
💨
PM2.5 6.1 µg/m³
25Good
1:00 AM
💨
PM2.5 5.1 µg/m³
25Good
2:00 AM
💨
PM2.5 4.2 µg/m³
26Good
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV High
55
Sat
💨
Good · UV Moderate
46
Sun
💨
Moderate · UV Moderate
77
Mon
💨
Moderate · UV High
85
Tue
💨
Moderate · UV High
52