Dr. Kissel is an environmental engineer whose research focuses on human exposure to environmental contaminants. He is a former President and Councilor of the International Society of Exposure Science (ISES) and former chair of the Exposure Assessment Specialty Group of the Society for Risk Analysis. He is currently a member of the US Environmental Protection Agency (EPA) Chemical Safety Advisory Committee (CSAC) and has previously served on multiple EPA panels including the FIFRA Science Advisory Panel and the Human Studies Review Board. He has also served on two National Academy of Sciences committees. Dr. Kissel has conducted research funded by US EPA, the National Institute of Occupational Safety and Health (NIOSH), and the Washington Department of Labor and Industries.