Edward R. Landa is a research hydrologist with the U.S. Geological
Survey in Reston, Virginia. He received his B.S. in geology from the
City College of New York and his M.S. and Ph.D. in soil science from
the University of Minnesota. His research focuses on the behavior of
metals and radionuclides in soils and aquatic environments. Address:
U.S. Geological Survey, 430 National Center, Reston, VA 20192.
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