Distribution of forms of heavy metals in soils contaminated by metallurgical smelter emissions
Distribution of forms of heavy metals in soils contaminated by metallurgical smelter emissions
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DOI：
10.1081/ese-120027726
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发表时间：
2004-01-01
影响因子：
2.1
通讯作者：
Kao, MM
中科院分区：
文献类型：
--
作者：
Lee, CS;Kao, MM
本研究的目的是调查重金属的化学分配发生在冶金冶炼厂污染的土壤，以及估计这些金属的潜在流动性。选择了六个土壤剖面位于不同距离的冶金冶炼厂和土壤样品，从表层和次表层。表层土壤中重金属的总含量远高于亚表层土壤，其变化范围（mgkg-1）如下：Cu，1-298; Zn，2.4-322; Pb，2.8 - 196; Cd，0.34-2.04; Cr，189-6.68; Ni，2.59-10.15。来自冶金冶炼厂的金属（Cu，Zn，P.B）的形态表现出相当高的百分比，交换性和碳酸盐馏分，这可能是从表层的桑迪土壤。金属的分布形式被发现依赖于，强烈的土壤性质和金属来源。
The objective of this study was to investigate the chemical partitioning of heavy metals occur in soils polluted with metallurgical smelters as well as to estimate potential mobility of these metals. Six soil profiles situated at different distances from metallurgical smelters were chosen and soil samples were taken from top-and sub-surface layers. Total contents of metals were much higher in top-soil than in sub-surface soil and varied in the following ranges (mgkg(-1)): Cu, 1-298; Zn, 2.4-322; Pb, 2.8 196; Cd, 0.34-2.04; Cr, 189-6.68; Ni, 2.59-10.15. The speciation of metals (Cu, Zn, and P.b) originating from metallurgical smelters showed considerably higher percentages of exchangeable and carbonate fractions which were likely to be leached from surface layer of sandy soils. The distribution of forms of metals were found to depend,strongly both on soil properties and metal origin.