Air quality in Upper Alton
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
10.3 µg/m³
WHO guideline 15
PM10
10.8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
3:00 PM
💨
PM2.5 10.3 µg/m³
96Moderate
4:00 PM
💨
PM2.5 10 µg/m³
95Moderate
5:00 PM
💨
PM2.5 9.6 µg/m³
83Moderate
6:00 PM
💨
PM2.5 9.2 µg/m³
61Moderate
7:00 PM
💨
PM2.5 9.7 µg/m³
47Good
8:00 PM
💨
PM2.5 11.3 µg/m³
47Good
9:00 PM
💨
PM2.5 12 µg/m³
50Good
10:00 PM
💨
PM2.5 12 µg/m³
50Good
11:00 PM
💨
PM2.5 11.5 µg/m³
48Good
12:00 AM
💨
PM2.5 10.7 µg/m³
45Good
1:00 AM
💨
PM2.5 9.5 µg/m³
40Good
2:00 AM
💨
PM2.5 8.1 µg/m³
34Good
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV Very high
96
Tue
💨
Unhealthy for Sensitive Groups · UV Very high
103
Wed
💨
Unhealthy · UV Very high
157
Thu
💨
Moderate · UV High
56