| 赣江流域持久性有机污染物（POPs）沉积记录——OCPs和PCBs分子地层学研究 |
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| 引用本文： | 丁,勇 谢振东 陈建勋.赣江流域持久性有机污染物（POPs）沉积记录——OCPs和PCBs分子地层学研究[J].中国地质,2012,39(3):827-834. |
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| 作者姓名： | 丁 勇 谢振东 陈建勋 |
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| 作者单位： | 1. 江西应用技术职业学院,江西赣州,341000
2. 江西省地质调查研究院,江西南昌,332000 |
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| 基金项目： | 江西省人民政府和国土资源部中国地质调查局合作项目 |
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| 摘 要： | 通过对赣江河漫滩剖面沉积物中持久性有机污染物中OCPs和PCBs沉积记录进行研究,确定赣江流域有机污染历史。根据其浓度变化,进行了分子地层学的划分,其中在26～46 cm层段都存在HCHs、DDTs和PCBs的高浓度残留量,并且DDTs高浓度残留量则延续的更长。整个剖面中OCPs和PCBs残留量属于非污染状态,但应注意其重新被释放到环境中的风险。POPs分子沉积记录与赣江流域使用历史记录相一致,从而具有一定研究近现代沉积物的年代学意义。
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| 关 键 词： | 有机污染物 分子地层学 赣江流域 |
Sedimentation records of persistent organic pollutant (POPs) in Ganjiang River basin: molecular stratigraphic study of OCPS and PCBs |
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| DING Yong,XIE Zheng-dong,CHEN Jian-xun.Sedimentation records of persistent organic pollutant (POPs) in Ganjiang River basin: molecular stratigraphic study of OCPS and PCBs[J].Chinese Geology,2012,39(3):827-834. |
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| Authors: | DING Yong XIE Zheng-dong CHEN Jian-xun |
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| Institution: | 1(1.Jiangxi College of Applied Technology,Ganzhou 341000,Jiangxi,China;2.Jiangxi Institute of Geological Survey,Nangchang 332000,Jiangxi,China) |
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| Abstract: | This paper deals with the sedimentation records of POPs such as OCPs and PCBs in sediments along the cross section of flood plain of Gangjiang River so as to determine the history of organic pollution.Classification of molecular stratigraphy was carried out on the basis of the evolution of the concentration of organic compounds,which indicates that there exist high concentrations of residual HCHs,DDTs and PCBs at the depth from 26 to 46 cm,with high level of residual DDTs being found even in deeper areas.Although the concentrations of residual OCPs and PCBs do not exceed the contamination standard,special attention should be paid to the potential release of such pollutants to the surrounding environment.The sedimentation records of POPs are consistent with the development history of Ganjiang River and hence such studies contribute to the study of the age of contemporary sediments. |
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| Keywords: | organic pollution molecular stratigraphy |
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