Site

State

PM AQI* (ug/m3)

South Phoenix

AZ

15

Villanueva-135 Dodge Dr

NM

15

Grand Canyon ozone bench

AZ

11

Tempe

AZ

10

Odessa Gonzales C1014

TX

10

Hidden Valley

AZ

9

Amarillo Texas A&M C320

TX

8

Socorro-106 Neel Ave

NM

8

Yuma Supersite

AZ

8

Rose Elementary

AZ

8