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
4.5 µg/m³
WHO guideline 15
PM10
5.8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
12:00 AM
💨
PM2.5 4.5 µg/m³
33Good
1:00 AM
💨
PM2.5 4.4 µg/m³
31Good
2:00 AM
💨
PM2.5 4.4 µg/m³
28Good
3:00 AM
💨
PM2.5 4.5 µg/m³
26Good
4:00 AM
💨
PM2.5 4.5 µg/m³
23Good
5:00 AM
💨
PM2.5 4.5 µg/m³
20Good
6:00 AM
💨
PM2.5 4.4 µg/m³
18Good
7:00 AM
💨
PM2.5 4.5 µg/m³
19Good
8:00 AM
💨
PM2.5 4.8 µg/m³
22Good
9:00 AM
💨
PM2.5 5.4 µg/m³
27Good
10:00 AM
💨
PM2.5 6 µg/m³
33Good
11:00 AM
💨
PM2.5 6.1 µg/m³
39Good
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV Very high
60
Wed
💨
Moderate · UV High
88
Thu
💨
Unhealthy for Sensitive Groups · UV Very high
149
Fri
💨
Moderate · UV Very high
86
Sat
💨
Moderate · UV Very high
83