Site

State

PM AQI* (ug/m3)

Pagosa Springs

CO

38

Upland

CA

33

Portola

CA

33

Jeffersonville - Bates-Bowy...

IN

33

MMCA81027

CA

32

Liberty (SAHS)

PA

31

Happy Camp-63822 CA-96

CA

31

MMCA81024

CA

31

Riverside - Rubidoux

CA

31

Cave In Rock-Park Ave

IL

30