中国海河沉积物中有机氯农药（OCPs）的含量及分布
The levels and distribution of organochlorine pesticides (OCPs) in sediments from the Haihe River, China.
作者信息
Yang Rui-qiang, Lv Ai-hua, Shi Jian-bo, Jiang Gui-bin
机构信息
Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China.
出版信息
Chemosphere. 2005 Oct;61(3):347-54. doi: 10.1016/j.chemosphere.2005.02.091. Epub 2005 Apr 19.
The levels and distribution patterns of the selected organochlorine pesticides (OCPs=p,p'-DDT, o,p'-DDT, p,p'-DDE, p,p'-DDD, alpha-, beta-, gamma- and delta-HCH) in surficial sediments from the Haihe River and Dagu Drainage River of Tianjin were investigated by means of gas chromatography coupled with micro-electronic capture detector (GC-microECD). Concentrations of OCPs in the sediments from the Haihe River ranged from 1.88 to 18.76ng g(-1) (mean 7.33ng g(-1)) for sum HCH, 0.32-80.18ng g(-1) (mean 15.94ng g(-1)) for sum DDT. Compared with the Haihe River, the Dagu Drainage River was much more contaminated by HCHs and DDTs, wherein sum HCH ranged from 33.24 to 141.03ng g(-1) (mean 87.74ng g(-1)) and sum DDT ranged from 3.60 to 83.49ng g(-1) with a mean value of 35.52ng g(-1). The concentration distribution of sum DDT and sum HCH was different indicated their different contamination sources. Composition analyses indicated that a recent usage or discharge of HCH and DDT into the Dagu Drainage River.
采用气相色谱-微电子捕获检测器（GC-microECD）对天津海河和大沽排污河表层沉积物中选定的有机氯农药（OCPs，即p,p'-滴滴涕、o,p'-滴滴涕、p,p'-滴滴伊、p,p'-滴滴滴、α-、β-、γ-和δ-六氯环己烷）的含量水平和分布模式进行了调查。海河沉积物中六氯环己烷总量的浓度范围为1.88至18.76 ng g(-1)（平均7.33 ng g(-1)），滴滴涕总量的浓度范围为0.32至80.18 ng g(-1)（平均15.94 ng g(-1)）。与海河相比，大沽排污河受六氯环己烷和滴滴涕的污染程度要高得多，其中六氯环己烷总量的浓度范围为33.24至141.03 ng g(-1)（平均87.74 ng g(-1)），滴滴涕总量的浓度范围为3.60至83.49 ng g(-1)，平均值为35.52 ng g(-1)。滴滴涕总量和六氯环己烷总量的浓度分布不同，表明其污染来源不同。成分分析表明，近期有六氯环己烷和滴滴涕排入大沽排污河。
Zotero 插件