Site
State
PM AQI* (ug/m3)
Klamath Falls - Peterson Sc...
OR
63
Hidden Valley
AZ
32
East St. Louis
IL
29
Broadus
MT
28
Chiloquin
18
Yreka
CA
Kendal
FL
17
Liberty (SAHS)
PA
Mira Loma - Van Buren
Larwill
IN
16