Air quality in Lancaster
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
4 µg/m³
WHO guideline 15
PM10
4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
7:00 PM
💨
PM2.5 4 µg/m³
39Good
8:00 PM
💨
PM2.5 4.3 µg/m³
33Good
9:00 PM
💨
PM2.5 5.1 µg/m³
28Good
10:00 PM
💨
PM2.5 5.6 µg/m³
25Good
11:00 PM
💨
PM2.5 6.3 µg/m³
26Good
12:00 AM
💨
PM2.5 7.1 µg/m³
30Good
1:00 AM
💨
PM2.5 8.3 µg/m³
35Good
2:00 AM
💨
PM2.5 9.1 µg/m³
38Good
3:00 AM
💨
PM2.5 9.5 µg/m³
40Good
4:00 AM
💨
PM2.5 9.6 µg/m³
40Good
5:00 AM
💨
PM2.5 9.2 µg/m³
38Good
6:00 AM
💨
PM2.5 8.7 µg/m³
36Good
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV Very high
56
Wed
💨
Moderate · UV High
70
Thu
💨
Good · UV Moderate
50
Fri
💨
Moderate · UV High
56