Site

State

PM AQI* (ug/m3)

Lancaster DW

PA

35

DESPLNS

IL

30

Harrisburg

PA

28

York

PA

28

NORTHBRK

IL

28

WAUKESHA - CLEVELAND AVE

WI

27

Lancaster

PA

27

South Bend-Shields Dr

IN

26

CHIWAUKEE

WI

26

MILWAUKEE 16TH ST

WI

25