Site

State

PM AQI* (ug/m3)

Jefferson

NM

14

Hidden Valley

AZ

12

Durango Complex

AZ

11

Del Norte

NM

11

Hobbs Jefferson

NM

10

Tramway

NM

10

Nogales Post Office

AZ

10

North Valley

NM

10

South Valley

NM

9

Yuma Supersite

AZ

9