| 广西铅锑矿冶炼区表层土壤重金属污染的分布规律 |
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| 引用本文： | 项萌,张国平,李玲,魏晓飞,蔡永兵. 广西铅锑矿冶炼区表层土壤重金属污染的分布规律[J]. 矿物学报, 2011, 31(2): 250-255 |
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| 作者姓名： | 项萌 张国平 李玲 魏晓飞 蔡永兵 |
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| 作者单位： | 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,贵州贵阳550002;中国科学院研究生院,北京100049
2. 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,贵州贵阳,550002 |
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| 基金项目： | 国家自然基金创新群体项目(批准号:40721001); 中国科学院主要方向项目(编号:KZCX2;YW135); 自然科学基金(批准号:40773073,40973084) |
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| 摘 要： | 为了解铅锑冶炼活动对周边土壤的污染情况,通过实地采样调查和室内样品分析,对河池铅锑矿冶炼区周边土壤中重金属含量的空间分布规律进行了分析,并对该区重金属污染情况进行评价。结果表明:冶炼区表层土壤受到较高含量的Sb、Pb、Zn污染,As、Cd和Cu也有一定程度的污染。土壤中的w(Sb)、w(Pb)和w(Zn)分别为195～2034 mg/kg、259～2261 mg/kg和365～1033 mg/kg,分别达到背景值的4.8～33.3倍、3.4～29.7倍和1.4～3.9倍。冶炼区表层土壤中的重金属含量与冶炼厂的远近关系密切,Sb、As和Pb在0～400 m范围急剧衰减,400 m范围内Sb、As和Pb分别衰减了92.5%、95%、93.7%。在400～2400 m的2000 m区间Sb、As和Pb分别衰减了64.4%、80.9%、52.1%。Cd在200 m范围内衰减了88.7%,在200～2400 m范围没有显著变化。Sb、As、Cd和Pb在400～2400 m范围呈缓慢衰减,使得重金属的影响可达很远。Sb和Pb的衰减趋势高度相似,这对于Pb-Sb的全球迁移具有相关的意义。
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| 关 键 词： | 锑 砷 土壤 广西河池 冶炼区 |
The Characteristics of Heavy Metals in Soil Around the Hechi Antimony-Lead Smelter,Guangxi,China |
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| XIANG Meng,ZHANG Guo-ping,LI Ling,WEI Xiao-fei,CAI Yong-bin. The Characteristics of Heavy Metals in Soil Around the Hechi Antimony-Lead Smelter,Guangxi,China[J]. Acta Mineralogica Sinica, 2011, 31(2): 250-255 |
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| Authors: | XIANG Meng ZHANG Guo-ping LI Ling WEI Xiao-fei CAI Yong-bin |
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| Affiliation: | XIANG Meng1,2,ZHANG Guo-ping1,LI Ling1,WEI Xiao-fei1,CAI Yong-bin1,2(1.State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China,2.Graduate School,Beijing 100049,China) |
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| Abstract: | The characteristics of heavy metal contamination of the soil around a Sb-Pb smelter were investigated,so as to understand the contamination level and the spatial distribution of toxic metals that originate from the smelter.The soil shows a high level of Sb,Zn and Pb contamination,as well as the contamination of As,Cd and Cu.Contents of Sb,Zn and Pb in soil are in the range of 195~2034 mg/kg,365~1033 mg/kg and 259~2261 mg/kg,which are 4.8~33.3 times,3.4~29.7 times and 1.4~3.9 times higher than background val... |
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| Keywords: | antimony arsenic soil Guangxi smelter |
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