Site	State	PM AQI* (ug/m3)
Brownsville C80	TM	30
Mission C43	TX	28
Birney	MT	23
St. Paul-Harding H.S.	MN	23
Rockford	IL	22
LACROSSE DOT	WI	21
ALSIP	IL	21
Houston East C1	TX	21
CHI_COM	IL	21
Hammond-167th St	IN	21