Site

State

PM AQI* (ug/m3)

Houston East C1

TX

59

Lafayette

LA

43

Clinton C403

TX

41

Conroe Relocated C78

TX

39

SYDNEY

FL

39

San Antonio Old Hwy90 C677

TX

37

French Settlement

LA

37

San Antonio Northwest C23

TX

34

Hinds CC

MS

29

Thibodaux

LA

28