Howard Mielke is a professor at the College of Pharmacy of Xavier University in New Orleans. He served as a Peace Corps Volunteer in Malawi, Africa, before obtaining his M.S. in biology and his Ph.D. in geography at the University of Michigan. He began his urban lead research in 1971 while teaching at the University of California, Los Angeles, and continued these studies at the University of Maryland, Baltimore County, and later at Macalester College in Minnesota. Mielke serves as the program director, and is a principal investigator of a multimedia study of metals in the urban and rural environment, for the Substance Specific Applied Research Program as part of a cooperative agreement with the Minority Health Professions Foundation/Agency for Toxic Substances and Disease Registry. He is a corresponding member of the Working Group on Geoscience and Health, Commission on Geological Sciences for Environmental Planning of the International Union of Geological Sciences. Address: Xavier University of Louisiana, College of Pharmacy, 7325 Palmetto Street, New Orleans, LA 70125. Internet: hmielke@mail.xula.edu.