Site	State	NowCast
Smithfield	UT	34
El Centro - 9th Street	CA	32
Calexico - Ethel Street	CA	31
Salmon PM2.5	ID	30
Colville-E 1st St	WA	28
Riverside - Rubidoux	CA	25
RYDER	ND	23
Durango Complex	AZ	23
Twisp-Glover St	WA	22
Chester	PA	22