Site

State

AQI*

Altoona

PA

48

State College

PA

42

DETROIT - W LAFAYETTE

MI

36

Allentown

PA

34

TRINITY ST MARKS

MI

31

CHIWAUKEE

WI

31

MILITARY PARK

MI

31

DET POLICE 4TH

MI

30

Johnstown

PA

29

Charleroi

PA

29