Air quality in Ladue
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
5.1 µg/m³
WHO guideline 15
PM10
5.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
7:00 PM
💨
PM2.5 5.1 µg/m³
47Good
8:00 PM
💨
PM2.5 6.1 µg/m³
41Good
9:00 PM
💨
PM2.5 7.1 µg/m³
33Good
10:00 PM
💨
PM2.5 7.2 µg/m³
30Good
11:00 PM
💨
PM2.5 7 µg/m³
29Good
12:00 AM
💨
PM2.5 6.4 µg/m³
27Good
1:00 AM
💨
PM2.5 5.9 µg/m³
25Good
2:00 AM
💨
PM2.5 5.6 µg/m³
23Good
3:00 AM
💨
PM2.5 5.7 µg/m³
24Good
4:00 AM
💨
PM2.5 5.7 µg/m³
24Good
5:00 AM
💨
PM2.5 5.8 µg/m³
24Good
6:00 AM
💨
PM2.5 5.8 µg/m³
24Good
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
62
Fri
💨
Moderate · UV High
68
Sat
💨
Unhealthy for Sensitive Groups · UV High
128
Sun
💨
Unhealthy for Sensitive Groups · UV Very high
119
Mon
💨
Good · UV Very high
41