Site

State

PM AQI* (ug/m3)

DCNearRoad

DC

26

RIVER_Terrace

DC

25

San Antonio Old Hwy90 C677

TX

22

BUTLER MANUF. CO NEAR REST

VA

21

Mission C43

TX

21

Laredo C313

TX

21

Rome

GA

20

Riverside

TN

20

Durham Armory

NC

20

GARINGER

NC

19