Site

State

PM AQI* (ug/m3)

Wellpinit-Spokane Tribe

WA

37

Yuma Supersite

AZ

30

Santa Fe Airport

NM

30

South DeKalb

GA

28

United Ave

GA

22

Gwinnett Tech

GA

21

Amarillo Texas A&M C320

TX

20

Santa Fe-703 Alta Vista St

NM

20

NO. BHAM

AL

20

Greenville-ESC

SC

20