Dr. Tim Dvonch is Associate Professor of Environmental Health Sciences at the University of Michigan School of Public Health.  He holds a B.S. in Chemistry, as well as M.S. and Ph.D. degrees in Environmental Health Sciences from the University of Michigan, where he also completed a postdoctoral fellowship in Environmental Science, Engineering, and Technology.  Dr. Dvonch’s research includes exposure assessment and health effects of air pollution, with a focus on chemical composition of particulates and source identification, as well as atmospheric transport and fate of toxicants including mercury and other metals across a wide array of environmental systems with the ultimate goal of informing policy and decision-marking processes.