Site

State

PM AQI* (ug/m3)

MOUNDSVILLE

WV

27

Lancaster DW

PA

21

Kittanning

PA

21

DETROIT-SW

MI

18

St Theodosius

OH

18

Clinton, Chancy Park

IA

16

Steubenville

OH

15

Beaver Falls

PA

15

York

PA

15

WAUKESHA - CLEVELAND AVE

WI

15