The records of 239+240Pu and 137Cs of global fallout in Lake East Dongting Sediments and Responses to watershed environmental changes

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成果类型：

期刊论文

作者：

Peng, Anguo;Chen, Mengting;Li, Xuebin;He, Husheng

通讯作者：

Peng, AG

作者机构：

[Chen, Mengting; Li, Xuebin; Peng, Anguo; He, Husheng] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

通讯机构：

[Peng, AG ] U

Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

语种：

英文

关键词：

Atmospheric chemistry;Meteorological problems;Sedimentation;Sediments;137cs;239+240pu;Activity concentration;Atmospheric depositions;Atomic ratio;Distribution characteristics;Lake east dongting;Lake sediments;Sediment core;Sedimentation rates;Lakes;cesium 137;plutonium 239;plutonium 240;cesium;Cesium-137;plutonium;Plutonium-240;atmospheric deposition;fallout;human activity;lacustrine deposit;radionuclide;sedimentation rate;vertical distribution;watershed;Article;atmospheric deposition;China;controlled study;environmental change;fallout;lake sediment;particle size;sediment;sedimentation rate;watershed;human;lake;water pollutant;China;Dongting Lake;Hunan;Cesium Radioisotopes;Geologic Sediments;Humans;Lakes;Plutonium;Radiation Monitoring;Water Pollutants, Radioactive

期刊：

Journal of Environmental Radioactivity

ISSN：

0265-931X

年：

2024

卷：

272

页码：

107364

DOI：

10.1016/j.jenvrad.2023.107364

基金类别：

This work was funded in part by the Open Fund of Hunan Collaborative Innovation Center for Nuclear Fuel Cycle Technology and Equipment (2019KFZ09), the Hunan Department of Education Project (19A433) and the Innovation Project for College students in Hunan Province (S202110555170). The authors thank the associate editor and two anonymous reviewers for their helpful comments and suggestions.

机构署名：

本校为第一且通讯机构

院系归属：

核科学技术学院

摘要：

Plutonium-239 + 240 and 137Cs in the environment can usually be used to track the impact of nuclear activities on the environment, and have become important tools in environmental geochemical studies. In this study, nine sediment cores (E1-E9) in Lake East Dongting were collected and measured for the activity concentration of 239+240Pu, 137Cs and the atomic ratio of 240Pu/239Pu, and then their vertical distribution characteristics were analyzed. The results show that: the activity concentrations of 137Cs and 239+240Pu in Lake East Dongting rang...

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The records of 239+240Pu and 137Cs of global fallout in Lake East Dongting Sediments and Responses to watershed environmental changes

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