Site

State

PM AQI* (ug/m3)

BROADWAY (South)

IL

15

ARNOLD WEST

MO

15

GC_MAD

IL

15

BLAIR STREET

MO

14

Clinton, Chancy Park

IA

14

East St. Louis

IL

14

Ladue

MO

13

Hillcrest HS

MO

13

Potosi

WI

13

ROCK_IS

IL

13