土壤中砷的来源及迁移释放影响因素研究进展
作者:
作者单位:

1.五邑大学;2.环境保护部华南环境科学研究所;3.广东省农田重金属污染土壤治理与修复工程技术研究中心

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中图分类号:

X53

基金项目:

国家重点研发计划项目(2017YFD0801300)、广东省科技计划项目 (2017B020203001)、广东省自然基金项目(2017A030313245)、广州市科技计划项目(201607010393)、广东省教育厅特色创新类项目(2015KTSCX142)和江门市科技计划项目(江科([2015]274-3))资助。


Sources of Arsenic in Soil and Affecting Factors of Migration and Release: A Review
Author:
Affiliation:

1.Wuyi University;2.South China Institute of Environmental Science, Ministry of Environmental Protection;3.South China Institute of Environmental Science, Ministry of Environmental Protection,

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    摘要:

    砷是一种高致癌风险的类金属,自然环境中高砷(As)含量可对人类和生态系统构成直接的健康威胁。研究自然环境中砷的来源、存在形式及影响因素有助于进一步理解环境中砷的迁移转化规律,降低人体摄入砷的风险。对文献的分析表明,铁锰氧化物矿物的还原性溶解、黄铁矿及其他硫化物矿物的氧化溶解、铝氢氧化物表面的砷还原、有机质抑制砷吸附以及Eh降低和pH升高是造成砷向环境迁移的主要原因。本文综述了环境中砷的来源及其向环境迁移的多种影响因素,分析了这些因素与砷之间的作用机制,以期为加强砷污染治理提供科学依据。

    Abstract:

    Arsenic (As) is a kind of metalloid with high carcinogenic risk. The high As content in natural environment poses a direct health threat to humans and ecosystems. Studying the sources, existing forms and influencing factors of As in the natural environment will help to further understand the law of As migration and transformation in the environment and reduce the risk of human exposuring to As. Analysis of the literature showed that the reductive dissolution of iron-manganese oxide minerals, the oxidative dissolution of pyrite and other sulfide minerals, the reduction of As on the surface of aluminum hydroxides, the inhibition of As adsorption by organic matter, the decrease of Eh and the increase of pH are the major contributors to the migration of As to the environment. This research summarized the sources, release and migration of As in the environment and analyzed the mechanism of action between these factors and As, which provided scientific basis for strengthening As pollution treatment.

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引用本文

安礼航,刘敏超,张建强,黄 玲,陈志良.土壤中砷的来源及迁移释放影响因素研究进展[J].土壤,2020,52(2):234-246. AN Lihang, LIU Minchao, ZHANG Jianqiang, HUAN Ling, CHEN Zhiliang. Sources of Arsenic in Soil and Affecting Factors of Migration and Release: A Review[J]. Soils,2020,52(2):234-246

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  • 收稿日期:2018-02-02
  • 最后修改日期:2018-04-13
  • 录用日期:2018-04-18
  • 在线发布日期: 2020-04-23
  • 出版日期: 2020-04-25