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Status, fuzzy integrated risk assessment, and hierarchical risk management of soil heavy metals across China: A systematic review

机译:中国土壤重金属的地位,模糊综合风险评估和分层风险管理:系统审查

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摘要

Many reviewers have applied bibliometric analysis to conduct research on heavy metals (HMs) in Chinese soil and found that risk management decisions were biased to a certain extent due to case distribution difference and uncertainty. The previous methodologies were optimized integrating further uncertainty control and case identification in this study. A solid database was built, which included 779 cases published from 2009 to 2020. Based on the data features, the weight method was used to objectively shield extreme cases and normalize the concentrations. We conducted fuzzy eco- and health risk models via a triangular fuzzy number, and identified the risks from Pb, Cd, As, and Hg as the priority control metals. However, the national HMs risk had complex spatial heterogeneity and significant uncertainty. Thus, an "integrated risk grade criterion (IRGC)" was coupled with the risk threshold concentrations for the eco- and health risks to classify the each case. The cases above the moderate IRGC grade for Cd or Hg accounted for approximately 50%, and were mainly in the west and north of China, respectively. The high-grade areas were mostly in the south of China, including the Xijiang-Pearl River Basin and the Yangtze River Basin. It was demonstrated that warning health risks were likely a local question and that the ecological risks from Hg and Cd were considerable across China. By reviewing and summarizing the text information, high grades of soil Cd, Pb, and As were frequently reported in the villages associated with the mining industry, and certain soil Cd near suburban industrial complexes also caused warning health risks. Finally, this study proposed priority control objects for hierarchical risk management, including the identified heavy metals, areas, and pilot cities from multi-spatial scales.
机译:许多综述人员申请了对中国土壤中重金属(HMS)进行研究的生物毛管计量分析,发现风险管理决策因案例分布差异和不确定性而在一定程度上偏见。先前的方法优化了本研究中进一步的不确定性控制和案例鉴定。建立了一个实体的数据库,其中包括从2009年到2020年发布的779个案例。根据数据特征,使用重量方法来客观地屏蔽极端情况并使浓度正常化。我们通过三角形模糊数进行了模糊的生态和健康风险模型,并将Pb,CD,AS和HG的风险识别为优先控制金属。然而,国家HMS风险具有复杂的空间异质性和显着的不确定性。因此,“综合风险级标准(IRGC)”与生态和健康风险的风险阈值浓度相结合,以对每种情况进行分类。高于中度IRGC等级的CD或HG的病例占了大约50%,主要是在中国西部和北部。高档区域主要在中国南部,包括西江珠江流域和长江流域。据证明,警告健康风险可能是一个本地问题,而HG和CD的生态风险很大在中国。通过审查和总结文本信息,高等级的土壤CD,PB,以及在与采矿业相关的村庄中经常报道,以及郊区工业综合体附近的某些土壤CD也导致了警示健康风险。最后,本研究提出了用于分层风险管理的优先控制对象,包括来自多空间尺度的所识别的重金属,区域和试验城市。

著录项

  • 来源
    《Science of the total environment》 |2021年第1期|147180.1-147180.10|共10页
  • 作者单位

    Research Center for Environment and Health Zhongnan University of Economics and Law Wuhan 430073 China School of Information and Safety Engineering Zhongnan University of Economics and Law Wuhan 430073 China;

    Research Center for Environment and Health Zhongnan University of Economics and Law Wuhan 430073 China School of Information and Safety Engineering Zhongnan University of Economics and Law Wuhan 430073 China;

    Research Center for Environment and Health Zhongnan University of Economics and Law Wuhan 430073 China School of Information and Safety Engineering Zhongnan University of Economics and Law Wuhan 430073 China;

    Research Center for Environment and Health Zhongnan University of Economics and Law Wuhan 430073 China School of Information and Safety Engineering Zhongnan University of Economics and Law Wuhan 430073 China;

    Research Center for Environment and Health Zhongnan University of Economics and Law Wuhan 430073 China School of Information and Safety Engineering Zhongnan University of Economics and Law Wuhan 430073 China;

    Research Center for Environment and Health Zhongnan University of Economics and Law Wuhan 430073 China School of Information and Safety Engineering Zhongnan University of Economics and Law Wuhan 430073 China;

    China Energy Conservation and Environmental Protection Croup (CECEP) is China International Engineering Consulting Corporation (CIECC) Huarui Technology Co. Ltd. Beijing 100034 China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Heavy metals; Soil; Risk assessment; Uncertainty control; Hierarchical risk management;

    机译:重金属;土壤;风险评估;不确定性控制;分层风险管理;

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