Site	State	PM AQI* (ug/m3)
Yakima-4th Ave	WA	25
Portola	CA	24
Nogales Post Office	AZ	23
Roosvelt	UT	22
Anderson	CA	21
Idaho City	ID	20
Toppenish-Yakama Tribe	WA	20
Sunnyside-S 16th	WA	19
Calexico - Ethel Street	CA	19
Libby Courthouse	MT	19