My research efforts focus on the mobility and fate of contaminants, including trace elements, nutrients, pesticides, colloids, and more recently, the release of trace nitrogen gases from soil. My experience and training are broadly based, covering soil and water engineering, soil science, environmental engineering, environmental quality and life sciences. I am part of the Soil & Water Engineering faculty in the Department of Biological & Environmental Engineering, an effective team of teaching faculty and associates working with a large group (up to 30) of graduate students, with each member contributing particular strengths. Research on contaminant mobility is a cooperative effort of a larger multidisciplinary group of researchers on campus. Areas of expertise that I bring to these groups include soil-oriented aspects of soil & water engineering, soil chemistry, environmental engineering and chemistry, experimental design, analytical instrumentation and procedures, laboratory administration, and proficiency in presentations and scientific/grant writing.