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苏南城市群河流表层沉积物中二英和共平面多氯联苯的浓度水平、来源和生态风险

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张烃, 陈社军, 李楠, 刘爱民, 张利飞, 史殿龙, 郑森, 赵虎, 齐丽, 麦碧娴, 黄业茹, 董亮. 苏南城市群河流表层沉积物中二英和共平面多氯联苯的浓度水平、来源和生态风险[J]. 环境化学, 2014, 33(9): 1445-1455. doi: 10.7524/j.issn.0254-6108.2014.09.001
引用本文: 张烃, 陈社军, 李楠, 刘爱民, 张利飞, 史殿龙, 郑森, 赵虎, 齐丽, 麦碧娴, 黄业茹, 董亮. 苏南城市群河流表层沉积物中二英和共平面多氯联苯的浓度水平、来源和生态风险[J]. 环境化学, 2014, 33(9): 1445-1455. doi: 10.7524/j.issn.0254-6108.2014.09.001
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ZHANG Ting, CHEN Shejun, LI Nan, LIU Aimin, ZHANG Lifei, SHI Dianlong, ZHENG Sen, ZHAO Hu, QI Li, MAI Bixian, HUANG Yeru, DONG Liang. Occurrence, sources and ecological risks of PCDD/Fs and dl-PCBs in surface sediments from rivers in city cluster in South Jiangsu Province, China[J]. Environmental Chemistry, 2014, 33(9): 1445-1455. doi: 10.7524/j.issn.0254-6108.2014.09.001
Citation: ZHANG Ting, CHEN Shejun, LI Nan, LIU Aimin, ZHANG Lifei, SHI Dianlong, ZHENG Sen, ZHAO Hu, QI Li, MAI Bixian, HUANG Yeru, DONG Liang. Occurrence, sources and ecological risks of PCDD/Fs and dl-PCBs in surface sediments from rivers in city cluster in South Jiangsu Province, China[J]. Environmental Chemistry, 2014, 33(9): 1445-1455. doi: 10.7524/j.issn.0254-6108.2014.09.001
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苏南城市群河流表层沉积物中二英和共平面多氯联苯的浓度水平、来源和生态风险

  • 1.

    中国科学院广州地球化学研究所, 有机地球化学重点实验室, 广州, 510640;

  • 2.

    中国科学院大学, 北京, 100049;

  • 3.

    国家环境保护二英污染控制重点实验室, 国家环境分析测试中心, 北京, 100029

  • 基金项目:

    国家重点基础研究发展计划（973）项目（2009CB421602）；环境保护公益性科研专项（201109001）资助.

Occurrence, sources and ecological risks of PCDD/Fs and dl-PCBs in surface sediments from rivers in city cluster in South Jiangsu Province, China

  • 1.

    State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China;

  • 2.

    University of Chinese Academy of Sciences, Beijing, 100049, China;

  • 3.

    State Environmental Protection Key Laboratory for Dioxin Pollution Control, National Research Center for Environmental Analysis and Measurement (CNEAC), Beijing, 100029, China

  • Fund Project:

  • 摘要: 对25个苏南城市群河流表层沉积物中二噁英及17个样品中共平面多氯联苯的监测表明，PCDD/Fs和dl-PCBs中位值分别为6.61 ng WHO1998TEQ·kg-1和1.43 ng WHO1998 TEQ·kg-1，均处于我国和亚洲河流表层沉积物的中等水平.PCDD/Fs和dl-PCBs含量水平与经济发展水平和工业规模呈现正相关.开发区新建企业是PCDD/Fs的新排放源之一.统计分析表明，南通PCDD/Fs的排放以燃煤和农药五氯酚的使用为主，无锡来源于农业活动和少量工业污染源，苏州则受到目前工业排放源的影响，3个城市的PCBs主要来源于历史上PCBs 工业品的使用.96% 的采样点总毒性当量浓度（TEQ）超过加拿大沉积物质量指导值（ISQGs），88%的采样点超过美国EPA ISQGs，表明苏南城市群表层沉积物PCDD/Fs和dl-PCBs具有一定生态风险.
    Abstract: Twenty five surface sediments from rivers in a city cluster in south Jiangsu Province, China, were analyzed for polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs), among which 17 sediments were analyzed for co-planar PCBs (dl-PCBs) as well. The results showed that the median concentrations of PCDD/Fs and dl-PCBs were 6.61 ng WHO1998 TEQ·kg-1 and 1.43 ng WHO1998TEQ·kg-1, respectively. A positive correlationwas found for the PCDD/Fs and dl-PCBs concentrations with the level and size of industrializations. Emerging plants in the industrial zones were found to be the major emission sources of PCDD/Fs. Statistical analysis indicated that the primary PCDD/Fs sources were coal burning and the use of pentachlorophenl products in Nantong, mixed sources of agricultural activities and industrial emission in Wuxi, and multiple industrial emission sources in Suzhou. The main dl-PCBs source in this region is the historical use of technical PCBs products. In Hangzhou-Beijing Grand Canal and Yangtze River dl-PCBs may have originated from the vessel coatings. Risk assessment showed that 96% and 88% sites have total toxic equivalent quantities (TEQs) beyond the interim sediment quality guidelines (ISQGs) suggested by Canadian Environmental Council and USEPA, respectively, implying a potential ecological risks form PCDD/Fs and dl-PCBs in this region.
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  • 收稿日期:  2014-01-02

苏南城市群河流表层沉积物中二英和共平面多氯联苯的浓度水平、来源和生态风险

  • 1.  中国科学院广州地球化学研究所, 有机地球化学重点实验室, 广州, 510640;
  • 2.  中国科学院大学, 北京, 100049;
  • 3.  国家环境保护二英污染控制重点实验室, 国家环境分析测试中心, 北京, 100029
  • 收稿日期:  2014-01-02
基金项目:

国家重点基础研究发展计划（973）项目（2009CB421602）；环境保护公益性科研专项（201109001）资助.

摘要: 对25个苏南城市群河流表层沉积物中二噁英及17个样品中共平面多氯联苯的监测表明，PCDD/Fs和dl-PCBs中位值分别为6.61 ng WHO1998TEQ·kg-1和1.43 ng WHO1998 TEQ·kg-1，均处于我国和亚洲河流表层沉积物的中等水平.PCDD/Fs和dl-PCBs含量水平与经济发展水平和工业规模呈现正相关.开发区新建企业是PCDD/Fs的新排放源之一.统计分析表明，南通PCDD/Fs的排放以燃煤和农药五氯酚的使用为主，无锡来源于农业活动和少量工业污染源，苏州则受到目前工业排放源的影响，3个城市的PCBs主要来源于历史上PCBs 工业品的使用.96% 的采样点总毒性当量浓度（TEQ）超过加拿大沉积物质量指导值（ISQGs），88%的采样点超过美国EPA ISQGs，表明苏南城市群表层沉积物PCDD/Fs和dl-PCBs具有一定生态风险.

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