Site
State
PM AQI* (ug/m3)
North OKC
OK
25
FRANCONIA
VA
22
JPRECC
KY
WATSON
21
DCNearRoad
DC
RIVER_Terrace
Ft. Worth Northwest C13
TX
20
BUTLER MANUF. CO NEAR REST
Greenville-ESC
SC
19
McMillan Reservoir
18