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
7.7 µg/m³
WHO guideline 15
PM10
7.9 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
11:00 PM
💨
PM2.5 7.7 µg/m³
32Good
12:00 AM
💨
PM2.5 7.7 µg/m³
32Good
1:00 AM
💨
PM2.5 7.4 µg/m³
31Good
2:00 AM
💨
PM2.5 6.8 µg/m³
28Good
3:00 AM
💨
PM2.5 6.1 µg/m³
26Good
4:00 AM
💨
PM2.5 5.5 µg/m³
26Good
5:00 AM
💨
PM2.5 5.1 µg/m³
26Good
6:00 AM
💨
PM2.5 5 µg/m³
25Good
7:00 AM
💨
PM2.5 5.2 µg/m³
24Good
8:00 AM
💨
PM2.5 5.8 µg/m³
24Good
9:00 AM
💨
PM2.5 6.4 µg/m³
27Good
10:00 AM
💨
PM2.5 7.2 µg/m³
30Good
Next few days
daily max · US EPA AQI
Sat
💨
Moderate · UV Moderate
58
Sun
💨
Moderate · UV Low
54
Mon
💨
Moderate · UV Moderate
95
Tue
💨
Unhealthy · UV High
158
Wed
💨
Moderate · UV Moderate
71