Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

28

Durango Complex

AZ

19

West Phoenix

AZ

19

North Valley

NM

18

South Valley

NM

16

Nogales Post Office

AZ

16

Jefferson

NM

15

Tempe

AZ

14

Casa Grande Downtown

AZ

14

Ascarate Park Southeast C37

TX

13