He is active in research, teaching, and advisory services related to environmental contaminant issues in Chesapeake Bay. His research interests include analytical method development including biosensors, contaminant partitioning behavior, toxicity studies to assess the effects of contaminants, and long-term fate studies to assess regulatory actions. He has studied polycyclic aromatic hydrocarbon contamination in the Elizabeth River, Virginia for over 25 years and recent research has focused on the development of antibody-based sensors for the near real-time analysis of environmental contaminants.