| 东营市孤岛地区土壤中类二噁英类PCBs的污染特征 |
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| 引用本文： | 王登阁,崔兆杰,傅晓文,殷永泉,许宏宇.东营市孤岛地区土壤中类二噁英类PCBs的污染特征[J].环境科学,2013,34(6):2416-2421. |
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| 作者姓名： | 王登阁 崔兆杰 傅晓文 殷永泉 许宏宇 |
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| 作者单位： | 1. 山东大学环境科学与工程学院,济南,250100
2. 济南市环境保护监测站,济南,250014 |
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| 基金项目： | 环境保护公益性行业科研专项(201109022) |
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| 摘 要： | 2011年4月采集了东营市孤岛地区20个表层土壤样品,采用索氏提取-弗罗里土柱净化-气相色谱-电子捕获检测器检测的方法对采集的样品进行测定,揭示了该地区表层土壤中类二英类PCBs(dioxin-like polychlorinated biphenyls,DL-PCBs)的污染特征.结果表明,DL-PCBs的含量范围为1.4～7.4μg·kg-1,平均含量为(3.5±1.7)μg·kg-1;DL-PCBs的毒性当量为1.2～31.8 ng·kg-1,平均值为5.4 ng·kg-1,超过了加拿大土壤环境质量标准(4.0 ng·kg-1).各采样点间DL-PCBs的同系物组成相似,均以四氯联苯和五氯联苯为主,两者之和超过DL-PCBs总量的80%;从孤岛城镇到郊区,DL-PCBs的含量逐渐降低,这与许多化工厂分布在城镇周围有关.相关性分析显示,土壤中DL-PCBs的含量与土壤有机碳含量与黏粒含量显著正相关(R2分别为0.732和0.687,P<0.01),而与土壤砂粒含量负相关(R2=-0.438,P<0.05).
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| 关 键 词： | 类二英类PCBs 孤岛地区 土壤 污染特征 生态风险 |
| 收稿时间： | 2012/9/11 0:00:00 |
| 修稿时间： | 2012/10/23 0:00:00 |
Characteristics of Dioxin-Like Polychlorinated Biphenyls Contamination in Soils of Gudao Region in Dongying |
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| WANG Deng-ge,CUI Zhao-jie,FU Xiao-wen,YIN Yong-quan and XU Hong-yu.Characteristics of Dioxin-Like Polychlorinated Biphenyls Contamination in Soils of Gudao Region in Dongying[J].Chinese Journal of Environmental Science,2013,34(6):2416-2421. |
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| Authors: | WANG Deng-ge CUI Zhao-jie FU Xiao-wen YIN Yong-quan and XU Hong-yu |
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| Institution: | School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China;School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China;School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China;School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China;Ji'nan Environmental Protection Monitoring Station, Ji'nan 250014, China |
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| Abstract: | |
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| Keywords: | dioxin-like polychlorinated biphenyls (DL-PCBs) Gudao Region soil characteristic ecological risk |
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