Site

State

PM AQI* (ug/m3)

Indpls-W.18th St

IN

22

Steubenville

OH

19

Dayton - Sinclair

OH

17

South Bend-Shields Dr

IN

17

Clinton, Chancy Park

IA

16

Elkhart-Prairie St.

IN

16

WAUKESHA - CLEVELAND AVE

WI

15

Madison University Ave

WI

15

Kingery Near-road #1

IL

15

KALAMAZOO

MI

15