Site

State

PM AQI* (ug/m3)

MONTG

AL

19

San Antonio Old Hwy90 C677

TX

17

Austin North Interstate 35 ...

TX

17

Clinton C403

TX

16

Austin Webberville Road C171

TX

16

Von Ormy Highway 16

TX

15

Laredo C313

TX

15

San Antonio Northwest C23

TX

15

Midlothian OFW C52

TX

14

Temple Georgia C1045

TX

14