物探与化探Issue(6)：1097-1106,10.DOI:10.11720/wtyht.2014.6.01
土壤重金属生物有效性研究进展
Recent progress in the study of heavy metal bioavailability in soil
摘要
Abstract
The contamination of heavy metals in soil constitutes a serious environmental risk. This paper discusses the concept of bio⁃availability/accessibility of heavy metals and the affecting factors, presents the progress in the study of experimental methods of selec⁃tive extraction, and indicates the data application and research direction. The speciation and bioavailability of heavy metals in soil de⁃pend on elemental geochemical behavior, source of contaminants, physico⁃chemical condition of soil, rhizosphere enhancement and some other factors. Single and sequential selective extraction is the effective and operational methods to reflect the speciation and bio⁃availability of heavy metals in soil. As hand⁃to⁃mouth activity is the important pathway for soil Pb exposure to children, in vitro diges⁃tion methods have been developed to evaluate the bioaccessibility of heavy metals. Bioavailability and bioaccessibility of soil contami⁃nants seem to be the key parameters for risk assessment. The results of selective extraction also provide the basis for contaminated soil remediation.关键词
土壤重金属/生物有效性(可给性)/选择性提取/体外试验方法/元素地球化学行为Key words
heavy metals in soil/bioavailability or accessibility/selective extraction/in vitro test method/geochemical behavior of el-ements分类
天文与地球科学引用本文复制引用
周国华..土壤重金属生物有效性研究进展[J].物探与化探,2014,(6):1097-1106,10.基金项目
中国地质大调查项目 （）
