Site	State	PM AQI* (ug/m3)
Maple Falls-Azure Way	WA	25
Marysville-7th Ave	WA	23
Colville-E 1st St	WA	20
Madras - Westside School	OR	20
Omak-Colville Tribe	WA	20
Roseburg - Garden Valley Blvd.	OR	19
Twisp-Glover St	WA	18
Cottage Grove City Shops	OR	17
Leavenworth-Evans St	WA	17
Eugene - Amazon Park	OR	16