A new approach for reconstructing the 131 I-spreading due to the 2011 Fukushima nuclear accident by means of measuring 129 I in airborne particulate matter
作者: Mitsuru EbiharaYasuji OuraNaoki ShiraiYoshiyasu NagakawaNomoru SakuraiHiromitsu HabaHiroyuki MatsuzakiHaruo TsurutaYuichi Moriguchi
作者单位: 1Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 192-0397, Japan
2Department of Earth Sciences, Waseda University, 1-6-1 Nishi-waseda, Shinjuku-ku, Tokyo, 169-8050, Japan
3Biotechnology Group, Tokyo Metropolitan Industrial Technology Research Institute, 2-4-10 Aomi, Koto-ku, Tokyo, 135-0064, Japan
4Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, 351-0198, Japan
5Department of Nuclear Engineering and Management, School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan
6Remote Sensing Technology Center of Japan, 3-17-1 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
7Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
刊名: Journal of Environmental Radioactivity, 2019, Vol.208-209
来源数据库: Elsevier Journal
DOI: 10.1016/j.jenvrad.2019.106000
关键词: 129 I131 IFukushima nuclear accidentAirborne particulate matter
英文摘要: Abstract(#br)To retrieve the diffusion trajectory of the 131 I dispersed in the environment by the nuclear power plant accident in Fukushima in 2011, airborne particulate matter (APM) samples collected in the Tokyo metropolitan area were analyzed for their 129 I contents by means of accelerator mass spectrometry. In evaluating blank levels of chemicals and filters used for collecting APM, we established the analytical procedure for determining the 129 I activity of as low as 10 −8 Bq for a small piece of filter samples (about 0.1 cm 2 ). Coupled with 131 I data determined just after the accident, activity ratios of 129 I/ 131 I were obtained with a mean value of 2.29 × 10 −8 (±28% of a standard deviation). This value is systematically smaller than a mean value of soil samples by 16–24%...
全文获取路径: Elsevier  (合作)
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影响因子:2.119 (2012)

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关键词翻译
关键词翻译
  • spreading 扩张
  • airborne 空运的
  • measuring 测量
  • particulate 粒子
  • means 手段
  • nuclear 原子核的
  • matter 物质
  • approach 
  • accident 事故