Site

State

PM AQI* (ug/m3)

Mission Viejo

CA

20

North Holywood

CA

19

Mira Loma - Van Buren

CA

19

Otay Mesa - Donovan

CA

18

Reseda

CA

18

Los Angeles - N. Main Street

CA

17

Nipomo Mesa CDF

CA

17

Upland

CA

17

Riverside - Rubidoux

CA

16

Temecula (Lake Skinner)

CA

16