Site

State

PM AQI* (ug/m3)

GC_MAD

IL

14

DECATUR

IL

11

Branch Street

IL

10

TRINITY ST MARKS

MI

10

Springfield Ag

IL

9

East St. Louis

IL

9

CHI_SP

IL

8

Rockford

IL

8

Indpls-W.18th St

IN

8

Waterloo, Water Tower

IA

8