Site

State

PM AQI* (ug/m3)

San Antonio Old Hwy90 C677

TX

25

Austin North Interstate 35 ...

TX

23

San Antonio IH35 C1069

TX

23

San Antonio Northwest C23

TX

22

Austin Webberville Road C171

TX

22

Austin Northwest C3

TX

21

Laredo C313

TX

21

Clinton C403

TX

21

Corpus Christi Huisache C98

TX

21

Baytown C148

TX

20