| 泉州城市表层土壤重金属的赋存形态及污染评价 |
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| 引用本文： | 林燕萍,胡恭任,于瑞莲,张雪琴.泉州城市表层土壤重金属的赋存形态及污染评价[J].矿物岩石,2011,31(2). |
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| 作者姓名： | 林燕萍 胡恭任 于瑞莲 张雪琴 |
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| 作者单位： | 华侨大学环境科学与工程系,福建厦门,361021 |
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| 基金项目： | 国家自然科学基金(21077036,40673061); 泉州市科技计划项目(2007Z43) |
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| 摘 要： | 本文采用改进的BCR连续提取法研究泉州市区表层土壤中17种重金属的形态分布特征,并运用地积累指数Igeo法、潜在生态危害指数法、次生相与原生相分布比值法(RSP)评价土壤中重金属元素的潜在生态危害。结果表明,Li,Ti,Fe,Sc,V,As,Sb,Sn主要以残渣态存在;Cr,Ni,Cu,Zn,Bi在可氧化态中占有大比例,但仍以残渣态为主;Pb以可还原态为主;Mn,Cd,Co在可还原态和残渣态中占有较大比例。根据地累积指数法和RSP,泉州土壤受到不同程度的Sc,Co,Ni,Cu,Cd,Sb,Pb污染;潜在生态危害指数表明泉州市城区受到轻微生态危害。
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| 关 键 词： | 城市表层土壤 泉州市 重金属 赋存形态 污染评价 |
CHEMICAL FORMS AND POLLUTION ASSESSMENT OF HEAVY METALS IN QUANZHOU URBAN TOPSOIL |
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| LIN Yan-ping,HU Gong-ren,YU Rui-lian,ZHANG Xue-qin.CHEMICAL FORMS AND POLLUTION ASSESSMENT OF HEAVY METALS IN QUANZHOU URBAN TOPSOIL[J].Journal of Mineralogy and Petrology,2011,31(2). |
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| Authors: | LIN Yan-ping HU Gong-ren YU Rui-lian ZHANG Xue-qin |
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| Institution: | LIN Yan-ping,HU Gong-ren,YU Rui-lian,ZHANG Xue-qin Department of Environmental Science and Engineering,Huaqiao University,Xiamen 361021,China |
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| Abstract: | In this paper,a modified BCR sequential extraction procedure was used to obtain the speciation fractionation of 17 heavy metals in the soil sampled in the city area of Quanzhou.And the potential ecological risk of heavy metals was evaluated by the methods of geo-accumulation index(Igeo),potential ecological risk index and ratio of secondary phase to primary(RSP).The results showed that Li,Ti,Fe,Sc,V,As,Sb,Sn mainly existed in the form of residual fractions,Cr,Ni,Zn,Cu,Bi were present at comparatively higher... |
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| Keywords: | urban topsoil Quanzhou City heavy metal chemical forms pollution assessment |
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