1. Canadian Wildlife Service's Herring Gull Monitoring Program: Importance to the development of environmental policy on organohalogens. Author Gilbertson, Michael Subjects ENVIRONMENTAL policy, ORGANOHALOGEN compounds -- Environmental aspects, LARUS argentatus Abstract Discusses the importance of the monitoring of the herring gull to the development of environmental policy on organohalogens in Ontario. Forensic toxicology; Skepticism and post normal science; Implications for human health. Published 2001 Full Text View/download PDF