利用生态场地范围评估污染物的运输途径

R. Ryti, E. Kelly
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引用次数: 0

摘要

洛斯阿拉莫斯国家实验室(Los Alamos National Laboratory, LANL)开发了一个生态筛选评估过程,强调生态暴露和运输途径站点概念模型的开发和测试。LANL与新墨西哥州监管机构(新墨西哥州环境部或NMED)的人员合作开发了这种筛选方法。筛选评估过程的一个关键部分是完成创新的生态范围检查清单。这个清单有助于(1)确定是否存在完整的生态受体通路;(2)确定受影响的介质应如何在空间上聚集以进行筛选,建立评估的功能/操作边界;(3)收集信息,开发站点概念模型(SCM)。SCM包括污染源、主要运输途径和暴露途径以及潜在受体。范围界定清单由一系列问题和实地记录占位符组成,旨在指导风险评估人员制定SCM,并向决策者提供关于受体、潜在运输途径和潜在暴露途径的一致信息。本文总结了LANL/NMED的范围清单,并给出了其在LANL环境恢复(ER)站点的应用实例。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Using Ecological Site Scoping to Evaluate Contaminant Transport Pathways
Los Alamos National Laboratory (LANL) has developed an ecological screening evaluation process that emphasizes the development and testing of an ecological exposure and transport pathway site conceptual model. LANL developed this screening approach in partnership with personnel from the State of New Mexico regulatory authority (the New Mexico Environment Department or NMED). A key part of the screening evaluation process is the completion of an innovative ecological scoping checklist. This checklist helps to (1) determine if complete pathways to ecological receptors exist; (2) determine how the impacted media should be aggregated spatially for screening, establishing the functional/operational boundaries of the assessment; and (3) gather information to develop the site conceptual model (SCM). The SCM includes contaminant sources, dominant transport pathways and exposure routes, and potential receptors. The scoping checklist consists of a series of questions and placeholders for field notes, which are intended to guide the risk assessor in developing the SCM, and provide the decision-makers with consistent information on receptors, potential transport pathways and potential exposure pathways. This paper summarizes the LANL/NMED scoping checklist and gives examples of its application at the LANL Environmental Restoration (ER) sites.
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