Air quality in Willowbrook
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
22.2 µg/m³
WHO guideline 15
PM10
22.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
10:00 PM
💨
PM2.5 22.2 µg/m³
72Moderate
11:00 PM
💨
PM2.5 25.7 µg/m³
80Moderate
12:00 AM
💨
PM2.5 29.3 µg/m³
87Moderate
1:00 AM
💨
PM2.5 32.6 µg/m³
94Moderate
2:00 AM
💨
PM2.5 35 µg/m³
99Moderate
3:00 AM
💨
PM2.5 36.6 µg/m³
104Unhealthy for Sensitive Groups
4:00 AM
💨
PM2.5 36.9 µg/m³
104Unhealthy for Sensitive Groups
5:00 AM
💨
PM2.5 35.7 µg/m³
101Unhealthy for Sensitive Groups
6:00 AM
💨
PM2.5 34.2 µg/m³
97Moderate
7:00 AM
💨
PM2.5 33.1 µg/m³
95Moderate
8:00 AM
💨
PM2.5 28.1 µg/m³
85Moderate
9:00 AM
💨
PM2.5 22.9 µg/m³
74Moderate
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
96
Fri
💨
Unhealthy for Sensitive Groups · UV High
104
Sun
💨
Moderate · UV High
62
Mon
💨
Moderate · UV Very high
70