Comparisons of sediment mass accumulation rates in different regions of Dongting Lake and their environmental indications: Based on 239+240Pu, 137Cs, and 210Pbex

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成果类型：

期刊论文

作者：

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

通讯作者：

Anguo Peng

作者机构：

[Chen, Mengting; Li, Xuebin; Wu, Mengxing; He, Husheng] School of Nuclear Science and Technology, University of South China, Hengyang 421001, Hunan, China

[Peng, Anguo] School of Nuclear Science and Technology, University of South China, Hengyang 421001, Hunan, China. Electronic address: 2008000463@usc.edu.cn

通讯机构：

[Anguo Peng] S

School of Nuclear Science and Technology, University of South China, Hengyang 421001, Hunan, China

语种：

英文

关键词：

(137)Cs;(210)Pb(ex);(239+240)Pu;Dongting Lake;Mass accumulation rate;Spatial distribution

期刊：

Journal of Environmental Radioactivity

ISSN：

0265-931X

年：

2025

卷：

287

页码：

107702

DOI：

10.1016/j.jenvrad.2025.107702

基金类别：

CRediT authorship contribution statement Mengting Chen: Writing – original draft, Visualization, Validation, Software, Methodology, Investigation, Formal analysis. Anguo Peng: Writing – review & editing, Supervision, Resources, Project administration, Methodology, Investigation, acquisition, Data curation. Mengxing Wu: Visualization, Software, Methodology, Investigation. Xuebin Li: Writing – original draft, Visualization, Software, Methodology, Investigation. Husheng He: Validation, Software, Methodology, Investigation, Formal

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：

In this study, 24 sediment cores collected from Dongting Lake were detected by inductively coupled plasma-mass spectrometry and HPGe γ-spectrometer for 239+240 Pu, 137 Cs, 226 Ra, and 210 Pb, respectively. Based on the vertical profiles of 210 Pb ex , 239+240 Pu, and 137 Cs, sediment mass accumulation rates (MAR) were calculated, and the responses to major environmental events and anthropogenic activities were discussed. The vertical profiles of 137 Cs and 239+240 Pu exhibit bimodal distribution, the secondary peaks most probably indicated the...

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Comparisons of sediment mass accumulation rates in different regions of Dongting Lake and their environmental indications: Based on 239+240Pu, 137Cs, and 210Pbex

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