Policy Analysis Impact of the Clean Water Act on the Levels of Toxic Metals in Urban Estuaries: The Hudson River Estuary Revisited SERGIO A. SAN ˜ UDO-WILHELMY* Marine Sciences Research Center, Waste Reduction and Management Institute, State University of New York, Stony Brook, New York 11794-5000 GARY A. GILL Laboratory for Oceanographic and Environmental Research, Department of Oceanography, Texas A&M University at Galveston, 5007 Avenue U, Galveston, Texas 77551
To establish the impact of the Clean Water Act on the water quality of urban estuaries, dissolved (
