About the authors DES W. CONNELL is a Reader at Griffith University's School of Australian Environmental Studies in Queensland. He has served as a Visiting Professor at the State University of New York's Marine Sciences Research Center in Stony Brook. His professional experience includes positions as Director of the Gippsland Lakes Environmental Study for the Victorian Ministry of Conservation (VMC) and Marine Studies Coordinator for the VMC's Westernport Bay Environmental Study. He is a member of the Water Quality Council of Queensland, the Australian Environmental Council's Chemicals Review Subcommittee, and a former member of the Great Barrier Reef Consultative Committee. His other books include Water Pollution: Causes and Effects in Australia and New Zealand (1981) and Experiments in Environmental Chemistry (1980). In 1964 Dr. Connell received a Commonwealth Postgraduate Award and, later, the Australian Institute of Food Science and Technology Research Award. He received his PhD in chemistry from the University of Queensland. GREGORY J. MILLER is a Senior Teaching Fellow in Environmental Chemistry at Griffith University's School of Australian Environmental Studies. Previously, he worked as a chemist and state analyst in the Department of Health and Medical Services at the Queensland Government Chemical Laboratory. He is a member of the Australian Littoral Society and the Queensland Conservation Council. In 1976 he was awarded a Griffith University Postgraduate Scholarship. He earned his MPhil. in environmental chemistry from the School of Australian Environmental Studies in 1981.