Historically and Currently Used Dechloranes in the Sediments of the Great Lakes
文献类型:期刊论文
作者 | Yang, Ruiqiang ; Wei, Hua ; Guo, Jiehong ; McLeod, Colin ; Li, An ; Sturchio, Neil C. |
刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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出版日期 | 2011-06-15 |
卷号 | 45期号:12页码:5156—5163 |
中文摘要 | Dechlorane (mirex), Dechlorane Plus (DP), Dechlorane 602 (Dec602), Dechlorane 603 (Dec603), Dechlorane 604 (Dec604), and Chlordecone (Kepone) were analyzed in 16 sediment cores collected in 2007 from the Great Lakes of North America. Results show that Lake Ontario sediments have accumulated mirex, DP, Dec602 and Dec604 in amounts 1 to 2 orders of magnitude higher than other Great Lakes. The chemical inventory decreases log linearly with increasing latitude (N) and longitude (W) of the sampling locations, but Lake Ontario sites are outliers in the regression against latitude. The regression analyses suggest differences among the analytes with regard to source impact and long-range transport behavior. Temporal. trends of input differ among lakes. Most sites in Lake Superior are still receiving increasing fluxes of DP and Dec602, while these have been declining in Lake Ontario from the peak around 1990. The relative abundance of the two DP isomers, represented by f(syn), increases with increasing distance from the potential discharge source in Niagara Falls, NY, suggesting the anti-DP isomer is more vulnerable to degradation during long-range atmospheric transport. Kepone was not detected in the sediments of Lakes Ontario, Erie, and Michigan. |
WOS记录号 | WOS:000291422200016 |
公开日期 | 2012-10-16 |
源URL | [http://ir.rcees.ac.cn/handle/311016/7038] ![]() |
专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
推荐引用方式 GB/T 7714 | Yang, Ruiqiang,Wei, Hua,Guo, Jiehong,et al. Historically and Currently Used Dechloranes in the Sediments of the Great Lakes[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2011,45(12):5156—5163. |
APA | Yang, Ruiqiang,Wei, Hua,Guo, Jiehong,McLeod, Colin,Li, An,&Sturchio, Neil C..(2011).Historically and Currently Used Dechloranes in the Sediments of the Great Lakes.ENVIRONMENTAL SCIENCE & TECHNOLOGY,45(12),5156—5163. |
MLA | Yang, Ruiqiang,et al."Historically and Currently Used Dechloranes in the Sediments of the Great Lakes".ENVIRONMENTAL SCIENCE & TECHNOLOGY 45.12(2011):5156—5163. |
入库方式: OAI收割
来源:生态环境研究中心
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