Site

State

PM AQI* (ug/m3)

San Antonio Old Hwy90 C677

TX

14

Chesterfield

SC

13

Austin Webberville Road C171

TX

12

Conroe Relocated C78

TX

11

San Antonio IH35 C1069

TX

11

CASTLE H

NC

11

San Antonio Palo Alto C676

TX

10

Texarkana New Boston

TX

9

Houston East C1

TX

9

Moore

OK

9