Site

State

PM AQI* (ug/m3)

Springfield PM

OH

23

Liberty (SAHS)

PA

23

Cincinnati Near Road

OH

21

Terre Haute-Lafayette Ave

IN

20

Canton

OH

18

Taft

OH

18

Steubenville

OH

17

Parkway East (Near Road)

PA

17

Lawrenceville

PA

16

Dayton - Sinclair

OH

16