Dr. White obtained his BSc in microbiology and immunology, and PhD in environmental toxicology, from McGill University in Montreal. He conducted post-doctoral research at US EPA facilities in Rhode Island and North Carolina; investigating the mutagenic hazards of municipal wastewaters. He joined Health Canada in 1999 and is currently a senior research scientist in the Environmental Health Science and Research Bureau. In 2002 he was appointed Professor of Chemical and Environmental Toxicology in the Department of Biology at the University of Ottawa. His current work investigates the mutagenic and carcinogenic hazards of complex mixtures, the design and validation of in vitro tools for genetic toxicity assessment, the use of molecular biomarkers for mutagen exposure assessment, and the application of quantitative methods for interpretation of genetic toxicity dose-response data. He has published over 125 peer-reviewed papers, and his work has been cited over 6700 times. He currently serves on the editorial boards of Environmental and Molecular Mutagenesis, Mutation Research Reviews, Genes and Environment, and Food and Chemical Toxicology, and he is currently the vice-president of the International Association of Environmental Mutagenesis and Genomics Societies (IAEMGS).