Characteristics of tritium, stable isotopes and chemical components in monthly precipitation at Hiroshima, Japan.

IF 0.8 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Radiation protection dosimetry Pub Date : 2024-11-13 DOI:10.1093/rpd/ncae024

Ryohei Yamada, Haruka Kuwata, Khemruthai Kheamsiri, Kaho Ohno, Yuisa Kitayama, Yukiko Yoshinaka, Shinji Yoshinaga, Naoyuki Kurita, Naofumi Akata

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引用次数: 0

Abstract

This article mainly discusses tritium concentrations in monthly precipitation at Hiroshima City during 2021. The tritium concentrations, which were measured with a low background liquid scintillation counter, fluctuated from 0.16 to 0.78 Bq L-1. Additionally, hydrogen and oxygen stable isotopes and ionic species were measured in order to characterize precipitation, and their trends including tritium concentrations were compared with data collected in other regions of Japan in previous studies. Although the results showed the characteristics of precipitation were similar to those observed in the other regions, the tritium concentrations were found to be contrary to behavior expected from the latitude effect and some of the observed ionic components were suggested to be continental in origin. Since these results are not common at other sites in Japan, the tritium concentration in the westernmost region of Honshu, including Hiroshima City, may be influenced by Asian continental influences.

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日本广岛月降水中的氚、稳定同位素和化学成分的特征。

本文主要讨论 2021 年广岛市每月降水中的氚浓度。使用低本底液体闪烁计数器测量的氚浓度在 0.16 至 0.78 Bq L-1 之间波动。此外，还测量了氢和氧的稳定同位素以及离子种类，以确定降水的特征，并将其趋势（包括氚浓度）与以往研究中在日本其他地区收集的数据进行了比较。虽然结果显示降水的特征与其他地区观测到的相似，但发现氚浓度与纬度效应预期的行为相反，而且观测到的一些离子成分被认为来源于大陆。由于这些结果在日本其他地点并不常见，因此包括广岛市在内的本州最西部地区的氚浓度可能受到亚洲大陆的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiation protection dosimetry 环境科学-公共卫生、环境卫生与职业卫生

CiteScore

1.40

自引率

10.00%

发文量

223

审稿时长

6-12 weeks

期刊介绍： Radiation Protection Dosimetry covers all aspects of personal and environmental dosimetry and monitoring, for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring, accident dosimetry, and dosimetry related to the protection of patients. Particular emphasis is placed on papers covering the fundamentals of dosimetry; units, radiation quantities and conversion factors. Papers covering archaeological dating are included only if the fundamental measurement method or technique, such as thermoluminescence, has direct application to personal dosimetry measurements. Papers covering the dosimetric aspects of radon or other naturally occurring radioactive materials and low level radiation are included. Animal experiments and ecological sample measurements are not included unless there is a significant relevant content reason.