果树和果树和灌木堆积放射性核酸的特点
T E Kozhakhanov1, N V Larionova1, S N Lukashenko1
1Branch 'Institute of Radiation Safety ad Ecology' RSE NNC RK, Kurchatov, Kazakhstan.
Journal of environmental radioactivity
|November 12, 2023
概括
在放射性土壤中种植的水果和果作物表现出不同的放射性核酸吸收. 诸如-137和-90之类的放射性核酸在叶子中积累最多,然后在树枝中积累最多,在果实中积累最少.
科学领域:
- 环境科学 环境科学
- 放射化学 放射化学是指辐射化学.
- 植物生物学 植物生物学
背景情况:
- 在放射性污染地区对水果和果作物的长期研究.
- 专注于通过从土壤中根吸收的放射性核素积累.
研究的目的:
- 研究不同水果和果作物物种中的放射性核素积累.
- 在植物中量化人工放射性核酸的转移和分布 (Am-241,Cs-137,Sr-90,Pu-239+240).
- 确定跨放射性核酸在几年内积累的模式.
主要方法:
- 用水果和果作物进行自然实验.
- 在植物器官 (叶子,树枝,果实) 中分析放射性核酸度.
- 长期监测放射性核素积累模式.
主要成果:
- 放射性核酸在植物器官中分布不均:叶子 > 树枝 > 果实.
- 积累的显著变化:Cs-137 (1.8-77x),Sr-90 (1.6-750x),Am-241 (1.9-76x),Pu-239+240 (3-182x). 积累的显著变化包括:Cs-137 (1.8-77x),Sr-90 (1.6-750x),Am-241 (1.9-76x),Pu-239+240 (3-182x). 积累的显著变化包括:Cs-137 (1.8-77x),Sr-90 (1.6-750x),Am-241 (1.9-76x),Pu-239+240 (3-182x). 积累的显著变化包括:
- 在生长季节早期,Cs-137度达到顶峰;Am-241和Sr-90度在整个季节都在增加.
结论:
- 了解农作物中的放射性核素分布对于风险评估至关重要.
- 数据可以为放射性物质行为和食品安全的模型提供信息.
- 强调在受污染的环境中进行特定物种吸收研究的重要性.
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