Site

State

PM AQI* (ug/m3)

Houston Aldine C8

TX

15

Shuttlesworth

AL

14

Clinton C403

TX

12

Conroe Relocated C78

TX

11

Westlake

LA

11

NCORE

FL

10

San Antonio Old Hwy90 C677

TX

10

Baytown C148

TX

9

Thibodaux

LA

9

French Settlement

LA

9