Health and Environmental Effects Research
Two SETAC Sessions Focus on Effects of Toxic Substances in Large Aquatic Ecosystems
Large aquatic ecosystems in North America, such as the Great Lakes, Puget Sound, San Francisco Bay, and Chesapeake Bay, receive potentially toxic chemicals from numerous point and nonpoint sources. Chemical monitoring programs have detected a variety of compounds in the water, sediment, and biota of these systems, including so-called “chemicals of emerging concern.” However, many of these chemicals have insufficient toxicological effects data to allow their risks to be evaluated.
NHEERL Mid-Continent Ecology Division scientists, in collaboration with the Great Lakes National Program Office, have organized two sessions to address this issue at the November 7-11, 2010, Society of Environmental Toxicology and Chemistry (SETAC) North America 31st Annual Meeting in Portland, OR. The objective of the first session, a special symposium entitled “The Great Lakes Restoration Initiative/Puget Sound: Strategies To Assess the Impact of Toxic Substances in Large North American Aquatic Ecosystems,” is to reduce the uncertainties associated with potentially toxic chemicals in large aquatic ecosystems by providing an opportunity for scientists from different disciplines and organizations to present strategies and approaches to improve effects-based information. The objective of the second session, “Assessing the Impact of Toxic Substances in the Great Lakes and Other Large Aquatic Ecosystems,” is to provide an opportunity to present effects data from studies relevant to the Great Lakes and other large aquatic ecosystems, including empirical studies on the effects of single chemicals and complex mixtures, development and application of predictive toxicity models, results from effects-based monitoring, and assessment activities. Together, these two sessions include 16 presentations. More information on the specific topics and presentations will be available at http://portland.setac.org/ .