Site

State

PM AQI* (ug/m3)

Shreveport Airport

LA

27

Clinton C403

TX

27

Westlake

LA

20

OWENPRI

KY

20

Shuttlesworth

AL

19

United Ave

GA

18

McDonough

GA

18

Hopkinsville

KY

18

WYLAM

AL

18

WAVELAND

MS

17