Site

State

PM AQI* (ug/m3)

Ponca City

OK

20

Texarkana New Boston

TX

17

North OKC

OK

17

French Settlement

LA

16

McAlester

OK

16

Ellyson Industrial Park

FL

15

GPORT YC

MS

15

Glenpool

OK

14

Healdton

OK

14

Tulsa

OK

14