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

OR

18

Yreka

CA

18

Kendal

FL

17

Liberty (SAHS)

PA

17

Mira Loma - Van Buren

CA

17

Larwill

IN

16