Site

State

PM AQI* (ug/m3)

Potlatch

ID

74

Lancaster-Division

CA

52

Glenwood Springs-963 School St

CO

43

Weitchpec

CA

41

Forks Of Salmon-Hornfield

CA

39

Sparks

NV

38

Etna-Sawyers Bar WS

CA

35

Spanish Springs

NV

34

Reno4

NV

29

Ft. Collins - CSU Facilities

CO

27