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首页> 外文期刊>Human and ecological risk assessment >Distribution and Toxicity Risks of PCBs in the Tidal Flat Ecosystem Near the 37th PCBs Sealed Site on the Coast of Zhejiang Province, China
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Distribution and Toxicity Risks of PCBs in the Tidal Flat Ecosystem Near the 37th PCBs Sealed Site on the Coast of Zhejiang Province, China

机译：浙江省沿海地区第37个PCBs密封场附近的滩涂生态系统中PCBs的分布和毒性风险

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摘要

This study investigated the dioxin-like (DL) PCB concentration and congener distributions in water, sediment, and Boleophthalmus pectinirostris samples collected from a beach near the 37th PCBs sealed site (the hazardous waste storage site was sealed by Zhejiang Province Environmental Monitoring Center) of Zhejiang Province, China, so as to evaluate the harmful effects of PCBs waste sealed sites on the surrounding environment. The results showed that DL-PCBs were in all samples. For all samples, the detection ratio of the mono-ortho congener PCB118 and the non-ortho congener PCB81 reached 100%, and both of their contents correlated well with the total DL-PCBs contents. Levels of low-chloride congeners were higher in environmental samples, while the enrichment of the high-chloride congeners was higher in fish. The content of PCBs in B. pectinirostris was highly related to the sediment environment, thus B. pectinirostris could well indicate environmental PCBs pollution. Considering both of the PCBs content and toxic analysis, even after 4years of being excavated and cleaned, water, sediment, and fish samples were still at a certain degree of toxicity risks. Some areas were revealed to have a high toxicity risk, suggesting this PCBs sealed site still posed toxicity risks to the surrounding tidal flat ecosystem and might potentially endanger animals and human health.
机译：本研究调查了从第37个多氯联苯封存地点（危险废物储存地点由浙江省环境监测中心封存）附近的海滩收集的水，沉积物和竹节菌中的二恶英类（PCB）浓度和同类物分布。中国浙江省，以便评估多氯联苯废物密封场所对周围环境的有害影响。结果表明，所有样品中均含有DL-PCB。对于所有样品，单正交同源物PCB118和非正交同源物PCB81的检出率均达到100％，并且它们的含量均与总DL-PCBs含量相关。环境样品中低氯化物同类物质的含量较高，而鱼类中高氯化物同类物质的含量较高。果皮芽孢杆菌中多氯联苯的含量与沉积物环境高度相关，因此果皮芽孢杆菌可很好地表明环境多氯联苯的污染。考虑到多氯联苯的含量和毒性分析，即使经过4年的挖掘和清洁，水，沉积物和鱼类样品仍具有一定程度的毒性风险。某些区域被发现具有高毒性风险，表明该多氯联苯密封的位置仍然对周围的滩涂生态系统构成毒性风险，并可能危害动物和人类健康。

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  • 来源
    《Human and ecological risk assessment》 |2015年第2期|415-433|共19页
  • 作者

    He S. Y.; Zhang X.; Wang W. C.; Wu Q. L.;

  • 作者单位

    Zhejiang Gongshang Univ, Coll Environm Sci & Engn, Zhejiang Prov Key Lab Solid Waste Treatment & Rec, Hangzhou, Zhejiang, Peoples R China.;

    Zhejiang Gongshang Univ, Coll Environm Sci & Engn, Zhejiang Prov Key Lab Solid Waste Treatment & Rec, Hangzhou, Zhejiang, Peoples R China.;

    Environm Protect Agcy Taizhou, Taizhou, Zhejiang, Peoples R China.;

    Zhejiang Gongshang Univ, Coll Environm Sci & Engn, Zhejiang Prov Key Lab Solid Waste Treatment & Rec, Hangzhou, Zhejiang, Peoples R China.;

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  • 正文语种 eng
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  • 关键词

    toxicity risks assessment; PCBs distribution; PCBs sealed site;

    机译：毒性风险评估;PCB分布;PCBs密封部位;

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