Site

State

PM AQI* (ug/m3)

Vallecitos-1594 CR-247

NM

339

Liberty (SAHS)

PA

25

Steubenville

OH

24

Anthony

NM

23

Spanish Fork

UT

22

Jefferson

NM

22

South Valley

NM

20

North Valley

NM

20

Tonawanda II

NY

19

El Paso UTEP C12

TX

17