Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Joliot-Curie, Dubna, Moscow Region, Russia.
J Environ Radioact. 2013 Mar;117:19-24. doi: 10.1016/j.jenvrad.2012.01.018. Epub 2012 Feb 9.
In the present work, moss samples collected in Slovakia and Belarus were assayed with respect to gamma-emitting radionuclides. The results for (137)Cs and (210)Pb are discussed. Moss was used for the first time in Belarus, as a biological indicator of radioactive environmental pollution in consequence of the Chernobyl accident in 1986. In Belarus, the maximum activity of (137)Cs was observed in the Gomel region near Mazyr (6830 Bq/kg) and the minimum activity in the Vitebsyevsk Region near Luzhki-Yazno (5 Bq/kg). "Hot spots" were also observed near the towns Borisow and Yuratsishki. The results of measurements of (137)Cs in moss samples collected in 2000, 2006 and 2009 in the same localities of Slovakia are presented and compared with the results of air monitoring of (137)Cs carried out in Slovakia from 1977 until 2010. Measurements of the (210)Pb concentration in moss samples collected over the territory of Slovakia showed, that the median value exceed 2.3 times median value of (210)Pb obtained for Belarus moss. For that reason, the inhalation dose for man from (210)Pb and (137)Cs in Slovakia is more than twice as high as in Belarus, in spite of the initially very high (137)Cs exposure in the latter country.
在本工作中，对在斯洛伐克和白俄罗斯采集的苔藓样本进行了γ放射性核素分析。讨论了 (137)Cs 和 (210)Pb 的结果。苔藓首次在白俄罗斯被用作 1986 年切尔诺贝利事故后放射性环境污染的生物指示剂。在白俄罗斯，戈梅利地区靠近马齐尔的 (137)Cs 活度最高（6830 Bq/kg），维捷布斯克地区靠近卢日基-亚兹诺的 (137)Cs 活度最低（5 Bq/kg）。在鲍里索夫和尤拉齐什基等城镇附近也观察到了“热点”。还呈现了在 2000 年、2006 年和 2009 年在斯洛伐克相同地点采集的苔藓样本中 (137)Cs 的测量结果，并与 1977 年至 2010 年在斯洛伐克进行的 (137)Cs 空气监测结果进行了比较。在斯洛伐克采集的苔藓样本中 (210)Pb 浓度的测量表明，中位数超过白俄罗斯苔藓获得的 (210)Pb 中位数的 2.3 倍。因此，尽管在后者国家最初的 (137)Cs 暴露非常高，但斯洛伐克的 (210)Pb 和 (137)Cs 对人体的吸入剂量是白俄罗斯的两倍多。
