Site

State

PM AQI* (ug/m3)

Westlake

LA

13

Clemmons Middle

NC

12

Millbrook NCore

NC

12

Clinton C403

TX

12

Houston East C1

TX

11

Thibodaux

LA

11

San Antonio Old Hwy90 C677

TX

11

GARINGER

NC

10

Laredo C313

TX

10

Baytown C148

TX

10