Site

State

PM AQI* (ug/m3)

Maple Falls-Azure Way

WA

74

Lancaster DW

PA

42

Cave Junction Forest Service

OR

37

Modesto - 14th Street

CA

34

Turlock - S. Minaret Street

CA

33

York

PA

32

Chester

PA

30

Lancaster

PA

30

Pocatello Garrett and Gould

ID

30

Portola

CA

30