Site

State

PM AQI* (ug/m3)

Portola

CA

19

Otay Mesa - Donovan

CA

18

NCORE - Bishop

CA

18

Springville

CA

15

Brawley - 220 Main Street

CA

15

Glendora - Laurel

CA

15

Mira Loma - Van Buren

CA

14

North Holywood

CA

14

Indio - Jackson Street

CA

14

Upland

CA

14