Site

State

PM AQI* (ug/m3)

Waterloo, Water Tower

IA

17

Indpls - I-70 E

IN

15

Clinton, Chancy Park

IA

15

Detroit Lakes

MN

14

Jeffersonville - Bates-Bowy...

IN

14

Branch Street

IL

14

Rockford

IL

14

MILWAUKEE COLLEGE AVE.-NR

WI

14

BLAIR STREET

MO

13

GC_MAD

IL

13