Site

State

PM AQI* (ug/m3)

Winston

NM

50

Keeler

CA

44

NCORE - Bishop

CA

43

San Antonio Old Hwy90 C677

TX

35

San Antonio Northwest C23

TX

32

Laredo C313

TX

31

Von Ormy Highway 16

TX

29

Isla Blanca C323/C667

TX

29

San Antonio IH35 C1069

TX

28

Austin North Hills Drive C3

TX

28