Site

State

PM AQI* (ug/m3)

Austin North Interstate 35 ...

TX

23

Austin Webberville Road C171

TX

20

Temple Georgia C1045

TX

20

San Antonio Old Hwy90 C677

TX

20

Mission C43

TX

18

Austin Northwest C3

TX

18

Laredo C313

TX

18

San Antonio Northwest C23

TX

17

San Antonio IH35 C1069

TX

17

North OKC

OK

16