Site
State
PM AQI* (ug/m3)
Indpls-W.18th St
IN
34
Indpls - I-70 E
27
Indpls-Washington Park
Sycamore
OH
19
Taft
18
Springfield PM
16
Sinclair
15
Chester
PA
Lafayette-Greenbush St
14
Terre Haute-Lafayette Ave