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黄河岸边土壤中类二(口恶)英类多氯联苯污染现状及风险
摘要点击 108  全文点击 37  投稿时间:2017-04-11  修订日期:2017-07-11
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中文关键词  黄河  岸边土壤  类二(口恶)英类多氯联苯  风险
英文关键词  the Yellow River  shore soil  dioxin-like polychlorinated biphenyls  risks
作者单位E-mail
姚宏 北京交通大学土木建筑工程学院, 北京 100044 yaohongts@163.com 
卢双 北京交通大学土木建筑工程学院, 北京 100044;广州市南沙区环保水务局, 广州 511400  
张旭 北京交通大学土木建筑工程学院, 北京 100044;北京城建设计发展集团股份有限公司, 北京 100037  
裴晋 北京交通大学土木建筑工程学院, 北京 100044  
鲁垠涛 北京交通大学土木建筑工程学院, 北京 100044  
中文摘要
      研究了全黄河范围内40个国家重点控制断面岸边土壤样品中类二(口恶)英类多氯联苯(dioxin-like polychlorinated biphenyls,DL-PCBs)的污染现状,并利用毒性当量法和健康风险评价模型定量描述黄河岸边土壤中DL-PCBs对沿岸居民的毒性风险、致癌风险和非致癌风险.结果表明,黄河岸边土壤中各采样断面岸边土壤中ΣΣDL-PCBs的含量(以dw计,下同)范围为:0.37~7.17 ng·g-1,均值为0.38 ng·g-1.毒性风险计算表明,黄河岸边土壤中DL-PCBs的毒性当量范围为:0.00~30.31 pg·g-1,均值是13.63 pg·g-1,基本不会对沿岸居民产生毒性风险;健康风险模型计算表明,黄河岸边土壤中DL-PCBs对儿童和成人的致癌风险、非致癌风险均未超过美国EPA规定的限值,基本不会产生明显的健康风险.相比而言,黄河中游沿岸居民更易受到DL-PCBs危害.
英文摘要
      The concentration levels, toxic equivalency (TEQ) concentrations, and carcinogenic and non-carcinogenic risks of dioxin-like polychlorinated biphenyls in shore soil from the 40 national key monitoring sections along the entire Yellow River were comprehensively studied. The results showed that the concentrations of ΣDL-PCBs in the soil were between 0.37-7.17 ng·g-1 (dry weight), and the mean value was 0.38 ng·g-1 (dry weight). The TEQ concentrations of DL-PCBs in the soil were between 0.00-30.31 pg·g-1 (dry weight), and the mean value is 13.63 pg·g-1 (dry weight), posing no significant risk to the ecological environment and human health. The carcinogenic and non-carcinogenic risks of DL-PCBs in this study did not exceed the limits set by the USEPA, and there were no obvious health risks. The residents in the middle reaches of the Yellow River were more vulnerable to DL-PCBs.

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