Site
State
PM AQI* (ug/m3)
MONTG
AL
24
Greenville-ESC
SC
23
San Antonio Old Hwy90 C677
TX
19
Laredo C313
18
Von Ormy Highway 16
16
Gainesville
GA
15
San Antonio Northwest C23
Austin North Interstate 35 ...
LEEDS
DECATUR
14