Site	State	PM AQI* (ug/m3)
Winthrop-Chewuch Rd	WA	252
Twisp-Ewell St	WA	193
Omak-Colville Tribe	WA	156
Oroville-1117 Main St	WA	154
Pomeroy-Pataha St	WA	144
Coulee Dam-247 Schoolhouse ...	WA	126
Moses Lake-Balsam St	WA	118
Chelan-Woodin Ave	WA	117
Leavenworth-Evans St	WA	89
Ellensburg-Ruby St	WA	83