Site

State

PM AQI* (ug/m3)

South Phoenix

AZ

23

Ascarate Park Southeast C37

TX

16

Grand Canyon ozone bench

AZ

14

Chamizal C41

TX

12

Villanueva-135 Dodge Dr

NM

11

Odessa Gonzales C1014

TX

9

Hidden Valley

AZ

8

Amarillo Texas A&M C320

TX

8

Hobbs Jefferson

NM

8

Yuma Supersite

AZ

8