Site

State

PM AQI* (ug/m3)

Ponca City

OK

22

Tulsa

OK

19

SPRNGDLE

AR

18

Glenpool

OK

16

Copan

OK

15

Augusta

GA

15

North OKC

OK

15

CHICK.

AL

15

Near Road OKC

OK

15

McAlester

OK

14