Site

State

PM AQI* (ug/m3)

Portola

CA

23

Madisonville

LA

20

South Valley

NM

16

Lubbock 12th Street

TX

16

Socorro Hueco C49

TX

16

Karnack C85

TX

16

Union

OK

16

JPRECC

KY

16

McAlester

OK

15

MILITARY PARK

MI

15