Site

State

PM AQI* (ug/m3)

Omak-Colville Tribe

WA

21

Portola

CA

21

Pinehurst

ID

21

Colusa - Sunrise Blvd.

CA

18

Compton

CA

17

Portland - SE Lafayette

OR

17

Warner Robins

GA

17

La Pine Rural Fire Dept

OR

16

Ascarate Park Southeast C37

TX

15

Isla Blanca C323/C667

TX

15