贵阳市表层土壤中多环芳烃的分布特征及来源解析
Distribution characteristics and source analysis of PAHs in topsoil of Guiyang City，South-west China
查看参考文献22篇
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文摘
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运用高效液相色谱仪对贵阳市区及近郊的表层土壤中16种多环芳烃(PAHs)进行了定量分析，对其分布特征、污染水平以及来源进行了探讨.结果表明:土壤中PAHs含量为61～1560μg·kg~(-1)，城区土壤样品中PAHs含量为247～1560μg·kg~(-1)，郊区土壤样品中PAHs含量为61～339μg·kg~(-1)，土壤中4环、5环PAHs含量较高，在土壤PAHs含量中占有绝对优势;参照国外环境标准，对区域表层土壤PAHs的污染现状进行了评价，结果显示，贵阳市表层土壤受到一定程度的PAHs污染.利用相关系数法和典型源三角图法对 PAHs的可能来源进行了解析，发现贵阳市的土壤主要受到燃煤排放以及混合污染源———燃煤与汽车尾气排放PAHs的联合污染. |
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其他语种文摘
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Topsoil samples were collected from the urban and suburban areas of Guiyang City to determine the concentrations of 16 polycyclic aromatic hydrocarbons(PAHs)by high performance liquid chromatography，with the distribution characteristics，pollution levels，and origins of the PAHs discussed．The total PAHs concentration in the samples varied from 61 to 1560 μg·kg~(-1)，being 247~(-1)560μg·kg~(-1)for urban and 61-339μg·kg~(-1)for suburban soils，respectively．In all the samples，PAHs were dominantly composed of 4-and 5-ring PAH species． Referred to some foreign environmental standards，the topsoil of Guiyang City was PAHs-contaminated to some extent．The analysis with correlation coefficient method and triangle drawing discriminance based on typical sources showed that the possible sources of PAHs in the topsoil of Guiyang were mainly the combustion of coals and the combined contamination of coal combustion and traffic exhaust． |
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来源
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生态学杂志
,2011,30(9):1982-1987 【核心库】
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关键词
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贵阳
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土壤
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多环芳烃
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来源解析
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地址
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1.
中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550002
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中国科学院研究生院, 北京, 100049
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-4890 |
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学科
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环境科学基础理论 |
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基金
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中国科学院知识创新工程重要方向项目
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公益性行业科研专项项目
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国家自然科学基金项目
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中国科学院西部之光人才培养计划
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文献收藏号
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CSCD:4296895
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