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
5.6 µg/m³
WHO guideline 15
PM10
5.8 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
6:00 AM
💨
PM2.5 5.6 µg/m³
23 Good
7:00 AM
💨
PM2.5 5.4 µg/m³
23 Good
8:00 AM
💨
PM2.5 5.5 µg/m³
23 Good
9:00 AM
💨
PM2.5 5.5 µg/m³
23 Good
10:00 AM
💨
PM2.5 5 µg/m³
24 Good
11:00 AM
💨
PM2.5 4.6 µg/m³
27 Good
12:00 PM
💨
PM2.5 4.1 µg/m³
32 Good
1:00 PM
💨
PM2.5 3.7 µg/m³
37 Good
2:00 PM
💨
PM2.5 3.4 µg/m³
42 Good
3:00 PM
💨
PM2.5 3.5 µg/m³
43 Good
4:00 PM
💨
PM2.5 3.5 µg/m³
44 Good
5:00 PM
💨
PM2.5 3.5 µg/m³
43 Good
Next few days daily max · US EPA AQI
Wed
💨
Good · UV Moderate
44
Thu
💨
Good · UV Moderate
44
Fri
💨
Good · UV Moderate
41
Sat
💨
Good · UV Moderate
41
Sun
💨
Good · UV Moderate
36
JavaScript is needed for the map — the city links below work without it.
Precip NEXRAD · NOAA Temp Wind Clouds Terrain