Site

State

PM AQI* (ug/m3)

Ascarate Park Southeast C37

TX

16

Hidden Valley

AZ

15

Socorro Hueco C49

TX

12

Thirty Third

AZ

11

Durango Complex

AZ

10

North Phoenix

AZ

10

Anthony

NM

9

Geronimo

AZ

9

Nogales Post Office

AZ

9

Glendale Community College

AZ

9