Air quality in Knottsville
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
10.7 µg/m³
WHO guideline 15
PM10
11 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
10:00 PM
💨
PM2.5 10.7 µg/m³
45Good
11:00 PM
💨
PM2.5 11.9 µg/m³
50Good
12:00 AM
💨
PM2.5 12.9 µg/m³
53Moderate
1:00 AM
💨
PM2.5 13.8 µg/m³
55Moderate
2:00 AM
💨
PM2.5 14.9 µg/m³
57Moderate
3:00 AM
💨
PM2.5 15.8 µg/m³
59Moderate
4:00 AM
💨
PM2.5 16.1 µg/m³
59Moderate
5:00 AM
💨
PM2.5 14.8 µg/m³
57Moderate
6:00 AM
💨
PM2.5 13.8 µg/m³
55Moderate
7:00 AM
💨
PM2.5 12.2 µg/m³
51Moderate
8:00 AM
💨
PM2.5 10 µg/m³
42Good
9:00 AM
💨
PM2.5 9.3 µg/m³
44Good
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV Very high
78
Wed
💨
Unhealthy for Sensitive Groups · UV Moderate
106
Thu
💨
Moderate · UV Very high
65
Fri
💨
Moderate · UV High
68
Sat
💨
Moderate · UV Very high
91