Christian Gaaei Daughton, Ph.D.Christian Daughton ( oversees research in the Environmental Chemistry Branch at the U.S. Environmental Protection Agency's Office of Research and Development Laboratory (Las Vegas) on the environmental ramifications of non-regulated chemical pollutants. He pioneered EPA's involvement with pharmaceuticals and personal care products (PPCPs: in the late 1990s. Prior to joining the EPA in 1991, he was research toxicology faculty at U.C. Berkeley, supervisory research scientist at Lawrence Berkeley Laboratory, and an NIH postdoctoral fellow at Cornell University.