Air quality in Lewiston
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
5.1 µg/m³
WHO guideline 15
PM10
5.6 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 AM
💨
PM2.5 5.1 µg/m³
24Good
9:00 AM
💨
PM2.5 5 µg/m³
26Good
10:00 AM
💨
PM2.5 4.8 µg/m³
29Good
11:00 AM
💨
PM2.5 4.9 µg/m³
32Good
12:00 PM
💨
PM2.5 5.3 µg/m³
35Good
1:00 PM
💨
PM2.5 6 µg/m³
39Good
2:00 PM
💨
PM2.5 6 µg/m³
42Good
3:00 PM
💨
PM2.5 6.3 µg/m³
43Good
4:00 PM
💨
PM2.5 7.9 µg/m³
44Good
5:00 PM
💨
PM2.5 10.4 µg/m³
44Good
6:00 PM
💨
PM2.5 12 µg/m³
50Good
7:00 PM
💨
PM2.5 12.8 µg/m³
52Moderate
Next few days
daily max · US EPA AQI
Wed
💨
Moderate · UV Moderate
53
Fri
💨
Moderate · UV Moderate
55
Sat
💨
Good · UV Moderate
49