工厂中的人工放射性核素覆盖了核燃料循环设施周围的核燃料循环设施
Natalya Larionova1, Anna Toporova1, Pavel Krivitskiy1
1Branch 'Institute of Radiation Safety ad Ecology' RSE NNC RK, Kurchatov, Kazakhstan.
PloS one
|July 2, 2024
概括
在塞米帕拉廷斯克试验场核燃料循环设施附近的植物覆盖的放射生态评估揭示了人造放射性核化物,如-137,美洲-241和-239+240. 这些发现证实了土壤植物系统中的放射性污染.
科学领域:
- 环境科学 环境科学
- 辐射生态学 辐射生态学
- 核化学 核化学 核化学
背景情况:
- 研究反应堆设施是核燃料循环 (NFC) 的关键组成部分.
- 了解周围环境的放射生态状态对于核安全和环境监测至关重要.
- 塞米帕拉廷斯克试验场 (STS) 有着核活动的历史,需要持续的环境评估.
研究的目的:
- 评估STS内的两个研究反应堆设施周围的植物覆盖的放射生态状况.
- 作为生物指标,量化植物中特定的人造放射性核酸度.
- 为了确定与NFCs相关的"土壤-植物"系统中放射性污染的程度.
主要方法:
- 从研究反应堆设施的周边收集植物样本.
- 测量人工放射性核酸的活性度,特别是137Cs,241Am和239+240Pu.
- 对"土壤-植物"系统的分析,以评估放射性核素的分布和积累.
主要成果:
- 获得了植物覆盖中人工放射性核酸度的源数据.
- 在植物中确定了137Cs,241Am和239+240Pu的定量值.
- 这些放射性核素在植物覆盖中的存在表明它们在相关介质中的潜在存在通过累积生物指示.
结论:
- 在"土壤-植物"系统中确定的人造放射性核素值与STS领土的放射性污染有关.
- 植物覆盖面是评估核燃料循环设施周围放射生态状态的有效生物指标.
- 该研究强调了持续监测核活动影响的生态系统中放射性核素分布的重要性.
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