Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

13

Del Norte

NM

13

North Valley

NM

10

Yuma Supersite

AZ

10

Tramway

NM

9

Geronimo

AZ

7

Jefferson

NM

7

South Valley

NM

7

El Paso UTEP C12

TX

7

Thirty Third

AZ

6