Historical Changes in Polychlorinated Biphenyls Contaminated Sediments | Science Publications

American Journal of Environmental Sciences

Cindy M. Lee¹  Viet D. Dang¹  David M. Walters¹ 

关键词: Polychlorinated Biphenyls (PCBs);    natural attenuation;    Accelerated Solvent Extraction system (ASE);    Fine Benthic Organic Matter (FBOM);    Electron Capture Detector (ECD);    National Priorities List (NPL);    Food and Drug Administration (FDA);   

DOI  :  10.3844/ajessp.2012.11.15

学科分类：环境科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: PCBs contamination continues to pose a health risk to aquatic environments due to their recalcitrance and bioaccumulation. The Sangamo Weston/Twelvemile Creek/Lake Hartwell Superfund Site is an example of such a health risk as a result of PCBs discharged from a former capacitor manufacturing plant. We conducted a study in twelvemile creek (Clemson, SC, USA) to examine the temporal trend of PCB contaminated sediments. Approach: Surface sediments were sampled at four sites in fall 2008 to compare with concentrations measured in past studies. Total PCBs and congener-specific analyses were performed on Gas Chromatography-Electron Capture Detector (GC-ECD). Results: Total PCB concentrations ranged from 0.026-0.18

【 授权许可】

Unknown