Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

26

Jefferson

NM

21

North Valley

NM

19

South Valley

NM

19

Casa Grande Downtown

AZ

17

El Paso UTEP C12

TX

17

Orange Grove

AZ

15

Anthony

NM

14

Ascarate Park Southeast C37

TX

14

Chamizal C41

TX

14