1.1 本指南涵盖了核设施退役环境监测计划的制定或评估。本指南涉及:( 1. )在退役活动开始之前制定环境基线；( 2. )确定现场活动的释放途径及其在环境中的相关暴露途径；和( 3. )选择适当的采样位置和介质，以确保适当监测环境中的所有暴露途径。本指南还论述了环境监测计划与其他现场退役规划文件之间的接口，如辐射防护、现场特征描述和废物管理计划，以及联邦、州和地方环境保护法律和指南。 本指南适用于完成研发活动以及将设施或区域重新用于其他目的。 1.2 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 使用本指南将确保已正确评估计划退役活动对周围环境的潜在影响。 5.2 使用本指南将确保对环境采样的位置、频率、分析技术和介质类型进行评估，以监测环境和检测现场- 相关版本及其影响。

1.1 This guide covers the development or assessment of environmental monitoring plans for decommissioning nuclear facilities. This guide addresses: ( 1 ) development of an environmental baseline prior to commencement of decommissioning activities; ( 2 ) determination of release paths from site activities and their associated exposure pathways in the environment; and ( 3 ) selection of appropriate sampling locations and media to ensure that all exposure pathways in the environment are monitored appropriately. This guide also addresses the interfaces between the environmental monitoring plan and other planning documents for site decommissioning, such as radiation protection, site characterization, and waste management plans, and federal, state, and local environmental protection laws and guidance. This guide is applicable up to the point of completing D&D activities and the reuse of the facility or area for other purposes. 1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 Use of this guide will ensure that the potential impact on the surrounding environment from planned decommissioning activities has been properly assessed. 5.2 Use of this guide will ensure that the adequacy of environmental sampling has been assessed for location, frequency, analytical techniques, and media type to monitor the environment and to detect site-related releases and their impact.