Site

State

PM AQI* (ug/m3)

Springfield PM

OH

29

Remount

NC

21

Trenton

SC

20

LOCKLAND

TN

20

Terre Haute-Lafayette Ave

IN

20

Portola

CA

20

Cincinnati Near Road

OH

20

Mammoth Cave NP

KY

19

Candor FRO

NC

19

Clemmons Middle

NC

19