Air quality in Ketchikan
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
4.1 µg/m³
WHO guideline 15
PM10
4.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
9:00 AM
💨
PM2.5 4.1 µg/m³
24Good
10:00 AM
💨
PM2.5 3.8 µg/m³
29Good
11:00 AM
💨
PM2.5 3.4 µg/m³
33Good
12:00 PM
💨
PM2.5 3.3 µg/m³
36Good
1:00 PM
💨
PM2.5 3.8 µg/m³
38Good
2:00 PM
💨
PM2.5 4.5 µg/m³
39Good
3:00 PM
💨
PM2.5 4.7 µg/m³
38Good
4:00 PM
💨
PM2.5 4.9 µg/m³
37Good
5:00 PM
💨
PM2.5 5 µg/m³
34Good
6:00 PM
💨
PM2.5 5.4 µg/m³
29Good
7:00 PM
💨
PM2.5 5.8 µg/m³
26Good
8:00 PM
💨
PM2.5 6.2 µg/m³
26Good
Next few days
daily max · US EPA AQI
Sat
💨
Good · UV Moderate
39
Sun
💨
Good · UV Moderate
27
Mon
💨
Good · UV Moderate
26
Wed
💨
Good · UV Moderate
27