300 dpi: (k10513-9.jpg)
640 pixels wide: (k10513-9.jpg)
![]() Image Number K10513-9 |
Agricultural engineers Greg Holt (left) and former ARS scientist Michael Buser, now with Oklahoma State University, Stillwater, change filters from particulate-matter samplers and collect meteorology data while sampling dust generated by a rolling cultivator (background).
Photo by Stephen Ausmus.