Air quality in Knollwood
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
12.4 µg/m³
WHO guideline 15
PM10
12.9 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
11:00 PM
💨
PM2.5 12.4 µg/m³
52Moderate
12:00 AM
💨
PM2.5 10 µg/m³
42Good
1:00 AM
💨
PM2.5 8.4 µg/m³
35Good
2:00 AM
💨
PM2.5 7.4 µg/m³
33Good
3:00 AM
💨
PM2.5 6.8 µg/m³
35Good
4:00 AM
💨
PM2.5 5.7 µg/m³
37Good
5:00 AM
💨
PM2.5 5.1 µg/m³
35Good
6:00 AM
💨
PM2.5 5.8 µg/m³
33Good
7:00 AM
💨
PM2.5 6.6 µg/m³
32Good
8:00 AM
💨
PM2.5 7.6 µg/m³
34Good
9:00 AM
💨
PM2.5 9.5 µg/m³
40Good
10:00 AM
💨
PM2.5 10.6 µg/m³
44Good
Next few days
daily max · US EPA AQI
Thu
💨
Unhealthy · UV Moderate
153
Fri
💨
Unhealthy for Sensitive Groups · UV Moderate
128
Sat
💨
Moderate · UV High
63
Mon
💨
Moderate · UV High
81