Site

State

PM AQI* (ug/m3)

Hurst Road

AK

44

Portola

CA

32

Mammoth Lakes

CA

28

Salmon PM2.5

ID

27

Seeley Elementary School

MT

26

WY/KC

KS

24

Eugene - Amazon Park

OR

24

Pinehurst

ID

22

Salem - State Hospital

OR

22

Tacoma-L St

WA

22