Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, 84248 Bratislava, Slovakia.
J Environ Radioact. 2012 Dec;114:81-8. doi: 10.1016/j.jenvrad.2012.05.008. Epub 2012 Jun 7.
Results of radioactivity measurements in Bratislava aerosols following the Fukushima accident showed that at least three radioactive plumes arrived to Bratislava as indicated by (131)I/(137)Cs activity ratios. When compared with the Chernobyl results available for the Bratislava station, the Fukushima radionuclide levels were almost five orders of magnitude lower, with the maximum values for (131)I and (137)Cs of 0.5 and 0.07 mBq/m(3), respectively. The (131)I and (137)Cs vs. (7)Be aerosol activity records showed that the increases in (131)I and (137)Cs activity concentrations were accompanied by (7)Be increases, indicating that both the horizontal and vertical transports of radionuclides were responsible for observed radionuclide concentrations. The (134)Cs/(137)Cs activity ratio was close to 1, as has also been reported by other investigators.
福岛事故后在布拉迪斯拉发气溶胶中进行的放射性测量结果表明，至少有三股放射性羽流到达布拉迪斯拉发，这一点可以通过 (131)I/(137)Cs 活度比来指示。与可用于布拉迪斯拉发站的切尔诺贝利结果相比，福岛放射性核素水平低了近五个数量级，(131)I 和 (137)Cs 的最大值分别为 0.5 和 0.07 mBq/m(3)。(131)I 和 (137)Cs 与 (7)Be 气溶胶活度记录表明，(131)I 和 (137)Cs 活度浓度的增加伴随着 (7)Be 的增加，这表明放射性核素的水平和垂直输运都对观察到的放射性核素浓度有贡献。(134)Cs/(137)Cs 活度比接近 1，这与其他研究人员的报告也一致。
