Site

State

PM AQI* (ug/m3)

Amarillo Texas A&M C320

TX

16

Eagle Pass C319

TX

14

South Phoenix

AZ

12

Odessa Gonzales C1014

TX

11

Grand Canyon ozone bench

AZ

11

Big Bend NP

TX

10

Hobbs Jefferson

NM

10

Lubbock 12th Street

TX

10

Ascarate Park Southeast C37

TX

8

Yuma Supersite

AZ

7