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首页> 外文会议>STI/PUB/1228; International Workshop on Environmental Contamination from Uranium Production Facilities and their Remediation; 20040211-13; Lisbon(PT) >DECOMMISSIONING CANADIAN URANIUM MINES AND MILLS: REGULATORY FRAMEWORK, CLEANUP CRITERIA AND OBJECTIVES
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DECOMMISSIONING CANADIAN URANIUM MINES AND MILLS: REGULATORY FRAMEWORK, CLEANUP CRITERIA AND OBJECTIVES

机译：淘汰加拿大铀矿和磨矿：监管框架，清理标准和目标

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摘要

The objectives of decommissioning uranium mines and mills are to remove, minimize and control potential contaminant sources, achieving an end state property that is stable and safe for humans and non-human biota over the long term. Achievement of these qualitative decommissioning objectives is defined in relation to the existing provincial and federal environmental quality objectives and, where objectives are not available, site specific benchmarks are derived. To illustrate the joint regulatory approach the paper describes the final decommissioning plans and objectives for a uranium mine and mill facility that operated for 22 years. The decommissioning activities include the reclamation of tailings, open pits, underground mines and waste rock piles, and the final disposition of all surface infrastructures, including the mill. Cleanup criteria and water quality objectives have been established for decommissioning the site, through regulatory review and public consultation, taking into account the anticipated future use of the site. Modelling and risk assessment have been performed to predict long term ecological effects and potential effects on human health. The results of all the analyses, and in particular the uncertainties in the modelling predictions, were then used to identify follow-up requirements for the project and to identify any contingency measures if the environmental monitoring indicates that the decommissioning objectives may not be achieved or that the potential environmental effects may exceed those predicted.
机译：使铀矿山和钢厂退役的目的是去除，最小化和控制潜在的污染物源，以实现对人类和非人类生物群长期稳定且安全的最终状态。相对于现有的省和联邦环境质量目标，定义了这些定性退役目标的实现，如果没有目标，则会得出特定于现场的基准。为了说明联合监管方法，本文描述了已运营22年的铀矿山和磨煤厂的最终退役计划和目标。退役活动包括尾矿，露天矿，地下矿山和废石堆的开垦，以及包括磨坊在内的所有地面基础设施的最终处置。通过监管审查和公众咨询，并考虑到该站点的预期未来使用，已经建立了清理标准和水质目标，以使该站点退役。已经进行了建模和风险评估，以预测长期的生态影响和对人类健康的潜在影响。然后，所有分析的结果，尤其是建模预测中的不确定性，都用于确定项目的后续要求，并在环境监测表明可能无法达到退役目标或潜在的环境影响可能会超出预期。

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