Site

State

PM AQI* (ug/m3)

Laredo C313

TX

17

Mission C43

TX

16

SPRNGDLE

AR

15

Brownsville C80

TM

15

GPORT YC

MS

15

Columbus Airport

GA

14

PASCAGOULA

MS

14

United Ave

GA

14

San Antonio Old Hwy90 C677

TX

14

Jackson NCORE

MS

13