Site

State

PM AQI* (ug/m3)

Yuma Supersite

AZ

31

Amarillo Texas A&M C320

TX

19

Ascarate Park Southeast C37

TX

15

Odessa Gonzales C1014

TX

15

Socorro Hueco C49

TX

13

Grand Canyon ozone bench

AZ

13

South Phoenix

AZ

13

Lubbock 12th Street

TX

12

Chamizal C41

TX

12

Socorro-106 Neel Ave

NM

12