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首页> 外文期刊>Journal of environmental monitoring: JEM >Environmental risk assessment of metals for international chemicals safety programs: a recent and fast growing area of regulatory development, requiring new science concepts
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Environmental risk assessment of metals for international chemicals safety programs: a recent and fast growing area of regulatory development, requiring new science concepts

机译:用于国际化学品安全计划的金属的环境风险评估:法规发展的最新且快速增长的领域,需要新的科学概念

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摘要

The environmental risk assessment/management of metals requires special consideration. Specifically, homeostasis, bioavailability and natural background concentrations need to be considered during environmental risk assessment and risk management. In this paper we will first summarize the history of environmental risk assessment of metals for International Chemicals Safety Programs at the worldwide level and in Europe. Subsequently, we will identify the particular characteristics of metals that require special risk assessment methodologies, including a discussion of bow current models applied in International Chemicals Safety Programs failed to consider these characteristics. Then, examples of science-based modifications to the risk assessment methodology will be provided. These include: using the metalloregion approach for the quantification of homeostatic boundaries, using the added risk approach to account for natural metal background concentrations, and using mechanistic modelling for predicting metal bioavailability and metal toxicity. The integration of metallo-region-specific sensitivity functions into the metal bioavailability-toxicity models is finally proposed as an important future way forward in environmental risk assessment.
机译:金属的环境风险评估/管理需要特别考虑。具体而言,在环境风险评估和风险管理过程中需要考虑动态平衡,生物利用度和自然背景浓度。在本文中,我们将首先总结国际和全球范围内针对国际化学品安全计划的金属环境风险评估的历史。随后,我们将确定需要特殊风险评估方法的金属的特殊特性,包括对国际化学品安全计划中未考虑这些特性的弓形电流模型的讨论。然后,将提供基于科学的风险评估方法修改示例。其中包括:使用金属区域方法对稳态边界进行量化,使用增加的风险方法来计算天然金属的背景浓度,并使用机理模型来预测金属的生物利用度和金属毒性。最终提出将金属区域特异性敏感性函数整合到金属生物利用度-毒性模型中,作为未来环境风险评估的重要途径。

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