As the University of Arizona Superfund Research Center (UA SRC) begins its thirty-sixth year, it returns to the stewardship of the R. Ken Coit College of Pharmacy, under the leadership of Xinxin Ding, PhD, department head of Pharmacology and Toxicology. With the recent renewal of this grant, the center received $15M over the next five years to continue addressing the unique human health risks encountered in the US Southwest, where distinct geological and climatic attributes affect human health and its exposure to a variety of toxicants, especially arsenic.