Site

State

PM AQI* (ug/m3)

Liberty (SAHS)

PA

16

Indpls-W.18th St

IN

16

Lebanon

PA

15

GC_MAD

IL

15

TRINITY (GHIB)

MI

15

Iowa City, Hoover School

IA

14

Steubenville

OH

14

MILWAUKEE 16TH ST

WI

13

Harrisburg

PA

13

Clinton, Chancy Park

IA

13