Prepared from material supplied by Water Resources Scientific Information Center, Office of Water Resources Research, Department of the Interior, Washington, D.C
jointly produced by Environment Canada, Conservation and Protection, Ontario Region, Great Lakes Environment Program, and Water Planning and Management Branch; United States Environmental Protection Agency, Great Lakes National Program Office; Brock University, Institute of Urban and Environmental Studies; [and] Northwestern University, Center for Urban Affairs and Policy Research
Committee on Monitoring and Assessment of Trends in Acid Deposition, Environmental Studies Board, Commission on Physical Sciences, Mathematics, and Resources, National Research Council
Committee on the Causes and Management of Coastal Eutrophication, Ocean Studies Board, and Water Science Technology Board, Commission on Geosciences, Environment, and Resources, National Research Council
Committee on the Future Role of Pesticides in US Agriculture, Board on Agriculture and Natural Resources and Board on Environmental Studies and Toxicology, Commission on Life Sciences, National Research Council