Site	State	PM AQI* (ug/m3)
San Antonio Old Hwy90 C677	TX	21
Laredo C313	TX	21
MONTG	AL	19
Mission C43	TX	18
San Antonio Northwest C23	TX	18
Brownsville C80	TM	18
Ponca City	OK	17
Von Ormy Highway 16	TX	17
Greenville-ESC	SC	17
San Antonio IH35 C1069	TX	16