Site

State

PM AQI* (ug/m3)

Houston North Wayside C405

TX

21

French Settlement

LA

20

Westlake

LA

18

NO. BHAM

AL

17

Clinton C403

TX

17

WAVELAND

MS

16

Houston North Loop C1052

TX

15

Chalmette Vista

LA

15

Lafayette

LA

15

Austin Webberville Road C171

TX

14