| 白洋淀表层沉积物中有机氯农药和全多氯联苯的分布特征及风险评估 |
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| 引用本文： | 许妍,陈佳枫,徐磊,刘雨薇,谢立莹,王之卓,金苗,陈宇炜.白洋淀表层沉积物中有机氯农药和全多氯联苯的分布特征及风险评估[J].湖泊科学,2020,32(3):654-664. |
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| 作者姓名： | 许妍 陈佳枫 徐磊 刘雨薇 谢立莹 王之卓 金苗 陈宇炜 |
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| 作者单位： | 东南大学土木工程学院,南京210096;辽宁省兴城市环境保护监测站,兴城125100;中国科学院南京地理与湖泊研究所,南京210008;南昌工程学院,南昌330099 |
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| 基金项目： | 国家自然科学基金项目（41671468，41301546，51408119）、江苏省自然科学基金项目（BK20171356）和江苏省青蓝工程和污染控制与资源化国家重点实验室开放基金项目（PCRRF16018）联合资助. |
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| 摘 要： | 为了解白洋淀表层沉积物中有机氯农药(OCPs)和多氯联苯(PCBs)的污染情况,采用改进的GC-μECD方法对白洋淀11处沉积物进行了20种OCPs和全部209种PCB单体的定量检测和分析.结果显示:白洋淀11个沉积物样品共检出10种OCPs和24种PCBs,∑OCPs和∑PCBs的含量范围分别为1.22～52.45 ng/g(DW)和nd～37.61 ng/g,在国内处于中等水平; OCPs组成中以HCHs和Dieldrin(狄氏剂)为主,分别占到∑OCPs的39.9%和31.5%,其中7个采样点的HCHs以林丹输入为主,4个采样点以工业六六六污染为主.DDTs检出率较低,来源主要为历史残留;检出的PCB单体以低氯联苯为主,其中一氯、二氯和三氯联苯占∑PCBs的64.73%;采用沉积物质量标准法进行生态风险评估,结果表明白洋淀地区沉积物中p,p'-DDD和∑PCBs生态风险较低,Dieldrin生态风险尚需关注,γ-HCH生态风险较高,不容忽视.
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| 关 键 词： | 白洋淀 沉积物 多氯联苯 有机氯农药 风险评估 |
| 收稿时间： | 2019/5/6 0:00:00 |
| 修稿时间： | 2019/11/13 0:00:00 |
Distribution and risk assessment of organochlorine pesticides and polychlorinated biphenyls in surficial sediments from Lake Baiyangdian |
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| XU Yan,CHEN Jiafeng,XU Lei,LIU Yuwei,XIE Liying,WANG Zhizhuo,JIN Miao and CHEN Yuwei.Distribution and risk assessment of organochlorine pesticides and polychlorinated biphenyls in surficial sediments from Lake Baiyangdian[J].Journal of Lake Science,2020,32(3):654-664. |
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| Authors: | XU Yan CHEN Jiafeng XU Lei LIU Yuwei XIE Liying WANG Zhizhuo JIN Miao and CHEN Yuwei |
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| Institution: | School of Civil Engineering, Southeast University, Nanjing 210096, P. R. China,School of Civil Engineering, Southeast University, Nanjing 210096, P. R. China,School of Civil Engineering, Southeast University, Nanjing 210096, P. R. China,School of Civil Engineering, Southeast University, Nanjing 210096, P. R. China,Environmental Protection Monitoring Station of Xingcheng City, Liaoning Province, Xingcheng 125100, P. R. China,School of Civil Engineering, Southeast University, Nanjing 210096, P. R. China,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China and Nanchang Institute of Technology, Nanchang 330099, P. R. China |
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| Abstract: | |
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| Keywords: | Lake Baiyangdian sediments polychlorinated biphenyls organochlorine pesticides risk assessment |
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