Air quality in Chester
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
2.7 µg/m³
WHO guideline 15
PM10
2.8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 PM
💨
PM2.5 2.7 µg/m³
27Good
9:00 PM
💨
PM2.5 2.8 µg/m³
26Good
10:00 PM
💨
PM2.5 2.8 µg/m³
26Good
11:00 PM
💨
PM2.5 2.8 µg/m³
26Good
12:00 AM
💨
PM2.5 2.8 µg/m³
26Good
1:00 AM
💨
PM2.5 2.8 µg/m³
26Good
2:00 AM
💨
PM2.5 2.8 µg/m³
25Good
3:00 AM
💨
PM2.5 2.7 µg/m³
26Good
4:00 AM
💨
PM2.5 2.6 µg/m³
26Good
5:00 AM
💨
PM2.5 2.5 µg/m³
26Good
6:00 AM
💨
PM2.5 2.4 µg/m³
25Good
7:00 AM
💨
PM2.5 2.4 µg/m³
23Good
Next few days
daily max · US EPA AQI
Sun
💨
Good · UV Moderate
46
Tue
💨
Good · UV Moderate
50
Wed
💨
Good · UV Moderate
35