Site

State

PM AQI* (ug/m3)

Houston North Wayside C405

TX

15

Near Road OKC

OK

15

SPRNGDLE

AR

13

Irmo

SC

13

Columbus Airport

GA

12

ADEQ-DSR

AR

12

Clemmons Middle

NC

12

North OKC

OK

11

EAST VINTON ELEMENTARY SCHOOL

VA

11

HICKORY

NC

11