Site

State

PM AQI* (ug/m3)

Amarillo Texas A&M C320

TX

12

Yuma Supersite

AZ

9

Hidden Valley

AZ

8

Ascarate Park Southeast C37

TX

8

Las Cruces ED

NM

7

El Paso UTEP C12

TX

7

Glendale Community College

AZ

7

North Phoenix

AZ

7

Phoenix JLG Supersite

AZ

7

Tempe

AZ

6