Site

State

PM AQI* (ug/m3)

Bend - Pump Station

OR

35

Mission C43

TX

26

Laredo C313

TX

24

Los Angeles - N. Main Street

CA

22

Portola

CA

21

South Long Beach

CA

20

Brownsville C80

TM

19

Ashland Fire Dept

OR

19

Indpls-W.18th St

IN

19

Mira Loma - Van Buren

CA

19