Site

State

PM AQI* (ug/m3)

2912 Coffey

NE

16

CHI_COM

IL

16

MONTG

AL

15

Seabrook Friendship Park C45

TX

15

Larwill

IN

15

Liberty (SAHS)

PA

15

Hidden Valley

AZ

14

GC_MAD

IL

14

DECATUR

AL

13

Beaver Falls

PA

13