Site

State

PM AQI* (ug/m3)

Maple Falls-Azure Way

WA

50

Corcoran

CA

37

Hanford - S. Irwin Street

CA

36

Cave Junction Forest Service

OR

34

Lancaster DW

PA

34

Fresno-Foundry Park

CA

34

La Pine Rural Fire Dept

OR

33

Mammoth Lakes

CA

29

DETROIT-SW

MI

28

Modesto - 14th Street

CA

28