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沙根河中的污染和水文运输:一个同位素水文学研究

Togzhan Toktaganov¹, Ainur Mamyrbayeva¹, Аssan Aidarkhanov¹

¹Institute of Radiation Safety and Ecology, National Nuclear Center of the Republic of Kazakhstan, Kurchatov, Kazakhstan.

|October 9, 2025

概括

沙根河中的 (3H) 和稳定同位素表明特定部分的地下水流入. 伊尔蒂什河合流处的含量仍然低于安全饮用水标准.

科学领域:

环境科学环境科学
水文学的水文学
放射化学放射化学是指辐射化学.

背景情况:

沙根河位于前塞米帕拉丁斯克试验场 (STS) 上,是过去核活动影响的重要水道.
了解放射性核酸分布对于评估环境污染和潜在风险至关重要.

研究的目的:

为了研究三 (3H) 和稳定的同位素的分布,和氧在沙根河.
用同位素水文学来确定受污染的水的形成条件.
评估放射性核酸污染和水岩相互作用的来源和途径.

主要方法:

使用 (2H) 和氧-18 (18O) 稳定同位素的同位素水学.
对三 (3H) 度的分析.
测量水矿化情况.
结合同位素和地球化学分析.

主要成果:

在特定的河流段 (距源5公里,10公里和14公里) 观察到高和稳定同位素度,这表明地下水的流入量很大.
同位素分析和矿化数据有助于确定蒸发和低温区域在放射性核酸再分配中的作用.
沙根河与伊尔蒂什河交汇处的活动低于世卫组织/国际原子能机构饮用水干预水平 (7600 Bq/l).

结论:

地下水在沙根河系统中对三的运输和分配起着关键作用.
蒸发和低温过程会影响放射性核酸度和水的化学成分.
沙根河对其与伊尔蒂什河交汇处的饮用水供应没有直接风险.

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