Site

State

PM AQI* (ug/m3)

Shuttlesworth

AL

19

JOHNSTON

NC

16

MONTG

AL

15

Charleston Public Works

SC

14

W OWEN SCH

NC

14

SPRNGDLE

AR

14

Westlake

LA

13

Millbrook NCore

NC

13

Hattiesburg

MS

13

San Antonio Old Hwy90 C677

TX

13