Site

State

PM AQI* (ug/m3)

Clinton C403

TX

25

Houston North Wayside C405

TX

24

Houston North Loop C1052

TX

19

Texarkana New Boston

TX

18

Houston East C1

TX

17

French Settlement

LA

13

Shreveport Airport

LA

13

Westlake

LA

13

Karnack C85

TX

13

Baytown C148

TX

13