Site

State

PM AQI* (ug/m3)

Laredo C313

TX

30

San Antonio Palo Alto C676

TX

29

Rome

GA

26

San Antonio Old Hwy90 C677

TX

25

Austin North Interstate 35 ...

TX

22

Midlothian OFW C52

TX

22

San Antonio IH35 C1069

TX

21

Austin Webberville Road C171

TX

20

San Antonio Northwest C23

TX

20

Mission C43

TX

20