Site

State

PM AQI* (ug/m3)

Portola

CA

37

MMCA81044

CA

35

Hoopa-82 Willow St

CA

33

Salmon PM2.5

ID

29

Omak-Colville Tribe

WA

24

Libby Courthouse

MT

22

Turlock - S. Minaret Street

CA

22

Stockton - Hazelton Street

CA

22

Eliza Howell- Roadway

MI

19

John Day Dayton St

OR

19