Dr. Jenkins' research interests include the development of sampling and analytical methods for the physical and chemical characterization of complex organic mixtures and aerosols related to inhalation toxicology and environmental matrices. He has authored or co-authored 40 open literature publications in the area of field analytical chemistry and tobacco smoke characterization and human exposure, and is the lead author of the new book: The Chemistry of Environmental Tobacco Smoke: Composition and Measurement, Second Edition. He has sat on advisory panels in the area of environmental and air sampling, monitoring, and characterization for both the Department's of Energy and Defense, and the Environmental Protection Agency, and in the general area of smoking and health and aerosol inhalation exposure of experimental animals for the National Cancer Institute, National Institute on Drug Abuse, Canadian General Standards Board, Center for Indoor Air Research, Health - Canada, and the Federal Trade Commission. In addition, he has acted as an expert witness in several high-profile litigations involving environmental and mainstream tobacco smoke composition and exposure.

Dr. Jenkins received his B.S. degree in Chemistry from Michigan State University in 1969, and moved to the University of Wisconsin-Madison to pursue graduate work in analytical chemistry. He received his M.S. in 1972, studying under David Hopgood, and his Ph.D., in 1975, studying under Walter J. Blaedel. He joined the Analytical Chemistry Division at Oak Ridge National Laboratory shortly thereafter. Outside of his professional life, he is active in the Sierra Club, and an avid hiker and backpacker, and together with his wife, runs the web site: TwoHikers.org.