Site

State

AQI*

BLAIR STREET

MO

23

GC_MAD

IL

23

Terre Haute-Lafayette Ave

IN

20

Cincinnati Near Road

OH

19

Chester

PA

18

Indpls - I-70 E

IN

17

Indpls-W.18th St

IN

16

Branch Street

IL

15

Taft

OH

14

DECATUR

IL

14