Wendel C C S, Lind O C, Fifield L K, Tims S G, Salbu B, Oughton D H
Centre of Environmental Radioactivity CoE, Department of Environmental Sciences, Norwegian University of Life Sciences (NMBU), N-1433 Ås, Norway.
Centre of Environmental Radioactivity CoE, Department of Environmental Sciences, Norwegian University of Life Sciences (NMBU), N-1433 Ås, Norway.
Appl Radiat Isot. 2017 Nov;129:180-184. doi: 10.1016/j.apradiso.2017.08.015. Epub 2017 Aug 11.
Based on AMS analysis, it is shown that no Pu signals from the Fukushima accident could be discerned in marine sediments collected 1.5-57km away from the Fukushima Da-ichi power plant (FDNPP), which were clearly influenced by accident-derived radiocesium. The Pu/Pu atom ratios (0.21-0.28) were significantly higher than terrestrial global fallout (0.182 ± 0.005), but still in agreement with pre-FDNPP accident baseline data for Pu in near coastal seawaters influenced by global fallout and long-range transport of Pu from the Pacific Proving Grounds.
基于加速器质谱（AMS）分析表明，在距离福岛第一核电站（FDNPP）1.5 - 57公里处采集的海洋沉积物中，未检测到来自福岛事故的钚信号，这些沉积物明显受到事故衍生放射性铯的影响。钚同位素Pu/Pu原子比（0.21 - 0.28）显著高于全球陆地沉降值（0.182 ± 0.005），但仍与福岛第一核电站事故前受全球沉降和来自太平洋试验场钚的长距离传输影响的近岸海水中钚的基线数据一致。
