近地表处置场关闭后核素释放的环境影响分析

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摘要：作为低中水平放射性废物的最终去向，近地表处置场的安全具有非常重要的意义。结合某处置场设计工程，分析近地表处置场关闭后放射性核素释放景象，并建立模型论证其对环境的影响。结果表明，近地表处置场关闭后，放射性核素迁移对公众剂量很小，满足国家标准对公众照射剂量约束值的要求。

关键词：放射性废物；处置；释放景象；环境影响

中图分类号：X591 文献标识码：A 文章编号：1008-9500（2024）08-0-03

DOI：10.3969/j.issn.1008-9500.2024.08.039

Environment Impact Analysis of Radionuclide Release after Closure of Near Surface Disposal Facilities

LIU Huping

（The Fourth Research and Design Engineering Corporation of CNNC， Shijiazhuang 050021， China）

Abstract： As the ultimate destination of low-level radioactive waste， the safety of near surface disposal facilities is of great significance. Based on the design project of a disposal facilities， analyze the radioactive nuclide release scene after the closure of a near surface disposal facilities， and establish a model to demonstrate its impact on the environment. The results indicate that after the closure of the near surface disposal facilities， the migration of radioactive nuclides has a very small impact on the public dose， meeting the requirements of the national standard for the constraint value of public exposure dose.

Keywords： radioactive waste; disposal; releasing scenario; environment impact

低中水平放射性废物处置场（以下简称近地表处置场）属于核设施，必须对其开展安全分析评价并取得批准后方可进行建造和运行。（剩余3005字）