Site

State

PM AQI* (ug/m3)

Tempe

AZ

21

Hidden Valley

AZ

19

Durango Complex

AZ

19

West Phoenix

AZ

18

North Valley

NM

16

Chamizal C41

TX

14

Casa Grande Downtown

AZ

13

Geronimo

AZ

13

Ascarate Park Southeast C37

TX

13

Phoenix JLG Supersite

AZ

12