淡水中溶解的 137Cs 季节性变化的物理化学机制：福岛和切尔诺贝利

IF 0.9 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochemistry Pub Date : 2024-02-19 DOI:10.1134/s1066362223060127

A. V. Konoplev

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引用次数: 0

摘要

摘要对水体中意外产生的溶解态铯浓度的现有监测数据集的分析表明，造成水体中溶解态铯浓度在一年中季节性变化的主要物理化学机制有两个：悬浮物质对铯的解吸与温度有关，以及有机物在缺氧条件下分解过程中形成的铵阳离子对铯的离子交换再固定作用。根据水温和主要竞争阳离子的综合浓度这两个因素，得出了描述水体中溶解铯浓度季节变化的方程式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Physicochemical Mechanisms of Dissolved 137Cs Seasonal Variations in Freshwaters: Fukushima and Chernobyl

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Physicochemical Mechanisms of Dissolved 137Cs Seasonal Variations in Freshwaters: Fukushima and Chernobyl

Abstract

Analysis of available monitoring data sets on concentrations of accidentally derived dissolved radiocesium in water bodies is indicative of two major physicochemical mechanisms responsible for their seasonal variations in water bodies in the course of the year: temperature dependence of radiocesium desorption from suspended material and ion-exchange remobilization of radiocesium by ammonium cations formed during decomposition of organic matter in anoxic conditions. An equation describing seasonal variations in concentration of dissolved radiocesium in water bodies has been derived accounting for two factors: water temperature, and combined concentration of key competing cations.

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来源期刊

Radiochemistry CHEMISTRY, INORGANIC & NUCLEAR-

CiteScore

1.30

自引率

33.30%

发文量

期刊介绍： Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.