Distributions of Cs-137 and Pb-210 in moss collected from Belarus and Slovakia

作者：Aleksiayenak Yu V^*; Frontasyeva M V; Florek M; Sykora I; Holy K; Masarik J; Brestakova L; Jeskovsky M; Steinnes E; Faanhof A; Ramatlhape K I

来源：Journal of Environmental Radioactivity, 2013, 117: 19-24.

DOI：10.1016/j.jenvrad.2012.01.018

• Cs-137 and Pb-210 in moss
• 137Cs in surface air
• Chernobyl fallout
• Gamma spectroscopy

In the present work, moss samples collected in Slovakia and Belarus were assayed with respect to gamma-emitting radionuclides. The results for Cs-137 and Pb-210 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 Cs-137 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). %26quot;Hot spots%26quot; were also observed near the towns Borisow and Yuratsishki. The results of measurements of Cs-137 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 Cs-137 carried out in Slovakia from 1977 until 2010. %26lt;br%26gt;Measurements of the Pb-210 concentration in moss samples collected over the territory of Slovakia showed, that the median value exceed 2.3 times median value of Pb-210 obtained for Belarus moss. For that reason, the inhalation dose for man from Pb-210 and Cs-137 in Slovakia is more than twice as high as in Belarus, in spite of the initially very high Cs-137 exposure in the latter country.

• 出版日期2013-3
• 单位西北大学