David M. DeMarini was born in Peoria, Illinois, USA on May 20, 1950. He received the B.S. (1972), M.S. (1974), and Ph.D. (1980) in Biological Sciences (genetics) at Illinois State University, Normal, IL, studying under Dr. Herman E. Brockman. From 1980-1982, he did postdoctoral research at the Biology Division, Oak Ridge National Laboratory, Oak Ridge, TN. He then was a Research Geneticist at the National Toxicology Program, National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, NC from 1983-1984. He began his current position as a Genetic Toxicologist at the US Environmental Protection Agency (US EPA), Research Triangle Park, NC in 1985. He is also an Adjunct Professor, Dept. of Environ. Sci. & Engineering, School of Public Health, University of North Carolina, Chapel Hill, NC (1991-present). He is a member of the Environmental Mutagenesis and Genomics Society (EMGS) and the Genetics and Environmental Mutagenesis Society (GEMS). He has served as President of EMGS, GEMS, and of the International Association of Environmental Mutagenesis and Genomics Societies. He is an Editor of Mutation Research--Reviews (1998-present, 5-year Impact Factor 6.3) and is on the Editorial Board of Environmental and Molecular Mutagenesis (1984-1989, 1993-present) and Genes and Environment (2006-present). He has organized conferences, symposia, and training courses internationally, and has given invited lectures at more than 140 conferences in 55 countries. He has served on both (1986 and 2004) Tobacco Smoking and Cancer Monographs of the International Association for Research on Cancer (IARC) with WHO in Lyon, France, as well as the IARC Monographs on Drinking Water/Arsenic, Indoor Air, Vol. 100 Human Carcinogens, Auto and Diesel Exhaust, and Outdoor Air. He Chaired the IARC Monograph on Drinking Water, Food, and Industrial Chemicals (2011). He has published >170 articles, 24 book chapters, and received the Alexander Hollaender Award from the EMGS in 2011. He has mentored 10 graduate students and 10 postdocs through his adjunct professorship at UNC-Chapel Hill. His research interests are molecular mechanisms of mutagenesis, mutation spectra, complex mixtures, and biomarkers of mutation in humans.