Scholarlink

<p>In this study, the radiocarbon isotope ratio, Δ<sup>14</sup>C, was used to identify the sources of suspended sediment and <sup>137</sup>Cs discharged into rivers after the Fukushima nuclear accident. Suspended sediments were collected during the flood event and under normal water conditions to determine <sup>137</sup>Cs concentrations, Δ<sup>14</sup>C, and stable carbon isotope ratios. The results indicated that the contribution of forest surface soil runoff increased during the flood peak. Furthermore, the distribution of <sup>137</sup>Cs deposition in the watershed was reflected in temporal changes in suspended <sup>137</sup>Cs concentration during the flood event. This approach provides a comprehensive understanding of both <sup>137</sup>Cs and carbon dynamics.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Assessment of suspended sediment and 137Cs sources during the flood event in the Fukushima river using 13C and 14C

  • 期刊论文

  • 发表日期：

    2025年7月15日

查看全文
  • Takahiro Nakanishi,
  • Tadahiko Tsuruta,
  • Hironori Funaki

摘要

In this study, the radiocarbon isotope ratio, Δ14C, was used to identify the sources of suspended sediment and 137Cs discharged into rivers after the Fukushima nuclear accident. Suspended sediments were collected during the flood event and under normal water conditions to determine 137Cs concentrations, Δ14C, and stable carbon isotope ratios. The results indicated that the contribution of forest surface soil runoff increased during the flood peak. Furthermore, the distribution of 137Cs deposition in the watershed was reflected in temporal changes in suspended 137Cs concentration during the flood event. This approach provides a comprehensive understanding of both 137Cs and carbon dynamics.