Site

State

PM AQI* (ug/m3)

South Phoenix

AZ

11

Casa Grande Downtown

AZ

11

Phoenix JLG Supersite

AZ

11

Silver City-696 NM-35

NM

11

Las Cruces ED

NM

10

Santa Fe-703 Alta Vista St

NM

9

Grand Canyon ozone bench

AZ

9

Nogales Post Office

AZ

9

Socorro Hueco C49

TX

8

Villanueva-135 Dodge Dr

NM

8