11–16 May 2014
Casino Conference Centre
Europe/Prague timezone

Vertical migration of 137Cs in the undisturbed soil profiles in the basin of Pčinja River, southeastern Serbia

13 May 2014, 17:15
1h 30m
Gallery (Casino Conference Centre)

Gallery

Casino Conference Centre

Reitenbergerova 4/95, Mari&#225;nsk&#233; L&#225;zn&#283;, Czech Republic <font color=white>
Poster Radionuclides in the Environment, Radioecology Poster Session - Radionuclides in the Environment, Radioecology

Speaker

Ms Jelena Petrović (Institute for the Application of Nuclear Energy, University of Belgrade, Serbia)

Description

The 137Cs activity concentrations in six undisturbed soil profiles collected during 2013 in the basin of Pčinja River, southeastern Serbia, were determined gamma-ray spectrometrically. Soil samples were collected at 5 cm intervals up to 50 cm depth at each location. The value of 137Cs activity concentration when each soil layers of all soil profiles considered equal, ranged from 0.29 to 70.9 Bq kg-1, with a mean value of 10.7 Bq kg-1. Vertical migration of 137Cs activity concentration was shown by unique profile which represents calculated average value based on the measured values of 137Cs activity concentration for all six soil profiles by layers, in order to obtain general behavior of 137Cs in soil in the basin of Pčinja River. It was noted that 137Cs activity concentration decreased with soil depth up to 40 cm and then slightly increased down the profile, which could be consequence of different mechanical, mineralogical and chemical composition of soil layers in the analyzed soil profiles. The highest amount of total 137Cs in the soil (25%) was found in the first soil layer (0-5 cm), while the lowest one (2.46%) was found in the eighth soil layer (35-40 cm). Based on the results for the unique profile 74.3% of the total 137Cs in the soil was found in the first four soil layers (from 0 to 20 cm) and only 25.7% was found in the last six soil layers (from 20 to 50 cm), which indicates the slow migration of 137Cs in the deeper soil layers.

Primary author

Ms Jelena Petrović (Institute for the Application of Nuclear Energy, University of Belgrade, Serbia)

Co-authors

Mr Milan Đorđević (University of Niš, Faculty of Science and Mathematics, Department of Geography, Niš, Serbia) Ms Mirjana Ćujić (Institute for the Application of Nuclear Energy, University of Belgrade, Serbia) Mr Mrđan Đokić (University of Niš, Faculty of Science and Mathematics, Department of Geography, Niš, Serbia) Mr Ranko Dragović (University of Niš, Faculty of Science and Mathematics, Department of Geography, Niš, Serbia) Ms Snežana Dragović (Institute of Nuclear Sciences Vinča,University of Belgrade Belgrade, Serbia)

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