Site	State	PM AQI* (ug/m3)
Marysville-7th Ave	WA	29
Sunnyside-S 16th	WA	24
Tacoma-L St	WA	23
John Day Dayton St	OR	21
Maple Falls-Azure Way	WA	19
Edmonds-1115 4th Ave S	WA	17
Roseburg - Garden Valley Blvd.	OR	16
Clarkston-13th St	WA	16
Leavenworth-Evans St	WA	15
Darrington-Fir St	WA	15