Site

State

PM AQI* (ug/m3)

French Settlement

LA

23

Houston North Wayside C405

TX

21

Westlake

LA

18

Lafayette

LA

17

Savannah L&A

GA

17

Clinton C403

TX

17

Houston North Loop C1052

TX

15

Thibodaux

LA

15

Ellyson Industrial Park

FL

14

Chalmette Vista

LA

14