caa a22 4500 467905444 CHVBK 20180406152832.0 cr unu---uuuuu 170328e20060101xx s 000 0 eng 10.1007/s10661-006-0212-8 doi (NATIONALLICENCE)springer-10.1007/s10661-006-0212-8 PCB Levels and Trends Within the Detroit River-Western Lake Erie Basin: A Historical Perspective of Ecosystem Monitoring [Elektronische Daten] [Thomas Heidtke, John Hartig, Michael Zarull, Bonnie Yu] An international workshop held in the spring of 2002 convened a group of technical experts to address monitoring, modeling, and management of PCBs within the Detroit River-Western Lake Erie basin. Participants shared and discussed a diverse set of research data bases pertaining to PCB levels within the region, discussed observed changes within different components of the local ecosystem, and identified several primary issues impacting future PCB management strategies. Results presented at the workshop indicate dramatic reductions in PCB contamination levels have been observed in much of study area between the late 1970s and mid-1990s. Estimates of loadings attributable to water and atmospheric sources have generally declined, as have PCB concentrations in herring gull eggs, smelt and walleye. Nevertheless, additional improvements have not been observed during recent years and elevated contamination levels remain a concern within local hot spots, particularly in the lower Detroit River and Trenton Channel. A primary recommendation broadly supported by workshop participants is the need to maintain, support, and coordinate a comprehensive ecosystem monitoring program for the Detroit River-Western Lake Erie basin, one that incorporates both near-field and far-field monitoring elements. Such a program is crucial to provide necessary data in support of understanding ecosystem trends, calculating annual mass loadings to the system, assessing impacts of remediation actions, developing improved modeling frameworks, and formulating cost-effective management strategies for the future. Springer Science + Business Media, Inc., 2006 Detroit River nationallicence ecosystem health nationallicence Lake Erie nationallicence monitoring nationallicence PCBs nationallicence remediation nationallicence sediments nationallicence Heidtke Thomas Department of Civil and Environmental Engineering, Wayne State University, Detroit, MI, U.S.A. aut Hartig John Large Lakes Research Station, Grosse Ile, MI, U.S.A. aut Zarull Michael National Water Research Institute, Canada Centre for Inland Waters, Burlington, Ontario, Canada aut Yu Bonnie Department of Civil and Environmental Engineering, Wayne State University, Detroit, MI, U.S.A. aut Environmental Monitoring and Assessment Kluwer Academic Publishers 112/1-3(2006-01-01), 23-33 0167-6369 112:1-3<23 2006 112 10661 https://doi.org/10.1007/s10661-006-0212-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-006-0212-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Heidtke Thomas Department of Civil and Environmental Engineering, Wayne State University, Detroit, MI, U.S.A aut NATIONALLICENCE 700 1- Hartig John Large Lakes Research Station, Grosse Ile, MI, U.S.A aut NATIONALLICENCE 700 1- Zarull Michael National Water Research Institute, Canada Centre for Inland Waters, Burlington, Ontario, Canada aut NATIONALLICENCE 700 1- Yu Bonnie Department of Civil and Environmental Engineering, Wayne State University, Detroit, MI, U.S.A aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Kluwer Academic Publishers 112/1-3(2006-01-01), 23-33 0167-6369 112:1-3<23 2006 112 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer