Site

State

PM AQI* (ug/m3)

Yuma Supersite

AZ

16

Eagle Pass C319

TX

16

Ascarate Park Southeast C37

TX

15

South Phoenix

AZ

13

Alamo Lake

AZ

12

Hobbs Jefferson

NM

11

South Valley

NM

10

Socorro Hueco C49

TX

10

Nogales Post Office

AZ

10

Durango Complex

AZ

9