Daily variation of I-131, Cs-134 and Cs-137 activity concentrations in the atmosphere in Osaka during the early phase after the FDNPP accident
Daily variation of I-131, Cs-134 and Cs-137 activity concentrations in the atmosphere in Osaka during the early phase after the FDNPP accident
复制标题
FDNPP事故后早期大阪大气中I-131、Cs-134和Cs-137活度浓度的日变化
DOI：
10.1007/s10967-014-3752-3
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发表时间：
2015
影响因子：
1.6
通讯作者：
Atsushi Shinohara
中科院分区：
文献类型：
--
作者：
Zijian Zhang;Kazuhiko Ninomiya;Naruto Takahashi;Atsushi Shinohara
为了研究福岛第一核电站事故排放的放射性核素的时间变化，我们从2011年3月15日至5月1日开始在日本大坂使用大容量采样器收集气溶胶样品。用锗半导体探测器测量了大气中I-131、Cs-134和Cs-137的放射性浓度。在早期阶段只检测到I-131，4月在大坂发现了两个Cs-134.137峰。使用HYSPLIT模型，我们得出结论，从福岛地区的空气质量的直接传输是负责这些事件。
To investigate the time variations of radionuclides discharged from the Fukushima Daiichi nuclear power plants accident, we started collecting aerosol samples in Osaka, Japan, using a high-volume sampler from March 15 to May 1, 2011. Atmospheric radioactivity concentrations of I-131, Cs-134 and Cs-137 were measured with germanium semi-conductor detectors. Only I-131 was detected in the early phase and two Cs-134.137 peaks were found in Osaka in April. Using the HYSPLIT model, we concluded that direct transportation of the air mass from the Fukushima area was responsible for such events.