Site

State

PM AQI* (ug/m3)

Mission C43

TX

25

San Antonio Old Hwy90 C677

TX

24

Brownsville C80

TM

23

Austin North Interstate 35 ...

TX

19

Laredo C313

TX

18

San Antonio Northwest C23

TX

18

Von Ormy Highway 16

TX

17

San Antonio IH35 C1069

TX

17

Austin Webberville Road C171

TX

16

LESTER BUILDING SYSTEMS NE...

VA

15