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徐玉霞,薛 雷,汪志华,彭囿凯.关中西部某铅锌冶炼区周边耕地土壤重金属污染特征及评价[J].大中文模板3,2014,(2):251-256. [点击复制]
- XU Yu-xia, XUE Lei, WANG Zhi-hua, PENG You-kai.Pollution characteristics of heavy metals in farmland soil around a lead-zinc smelting plant in western Guanzhong Plain[J].大中文模板3,2014,(2):251-256. [点击复制]
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摘要: |
通过野外采样和实验室分析,研究关中西部某铅锌冶炼区周边耕地土壤中重金属元素的含量,并进行了污染评价。结果表明,该铅锌冶炼区周边耕地土壤中Pb、Zn、Cu、Cd、Cr、Hg、As、Ni的平均含量分别为47.95、128.53、26.13、1.09、91.5、0.164、12.2 mg·kg-1和27.1 mg·kg-1,除了Ni元素,均高于陕西省土壤元素背景值。评价结果表明,该铅锌冶炼区周边耕地土壤已经达到了中重度污染程度,其中重金属Pb、Hg和Zn污染较严重,耕地土壤重金属复合污染较严重。 |
关键词: 铅锌冶炼区 耕地土壤 重金属 污染特征 评价 |
DOI: |
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基金项目:陕西省教育厅项目“宝鸡凤县铅锌矿区土壤重金属污染评价与植物修复研究”(12JK0647);陕西省重点学科自然地理学资助项目 |
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Pollution characteristics of heavy metals in farmland soil around a lead-zinc smelting plant in western Guanzhong Plain |
XU Yu-xia1, XUE Lei2, WANG Zhi-hua2, PENG You-kai2 |
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Abstract: |
Through the methods of field sampling and experimental analysis, the contents of heavy metals in farmland soil around a lead-zinc smelting plant in western Guanzhong Plain were investigated and the pollution assessment was conducted. The results showed that the contents of Pb, Zn, Cu, Cd, Cr, Hg, As and Ni were 47.95, 128.53, 26.13, 1.09, 91.5, 0.164, 12.2 mg·kg-1and 27.1 mg·kg-1, respectively. Except for Ni, the contents of all other elements were higher than the soil background values in Shaanxi Province. The assessment results showed that the pollution of heavy metals in the farmland soil around the lead-zinc smelting plant was moderate or serious, in which the pollution of Pb, Hg and Zn was serious, and the comprehensive pollution in the farmland soil was serious. |
Key words: lead-zinc smelting plant farmland soil heavy metal pollution characteristic evaluation |