DBPapers
DOI: 10.5593/SGEM2014/B52/S20.087

TEMPORAL AND SPATIAL DISTRIBUTION OF RADIOACTIVITY IN THE SOIL OF THE BLACK SEA COAST IN THE SUPSA-NATANEBI INTERFLUVIAL REGION (GEORGIA)

M. Elizbarashvili, L . Mtsariashvili, N. Kekelidze, T. Jakhutashvili, E. Tulashvili, M. Mirtskhulava, Z. Berishvili
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-18-6 / ISSN 1314-2704, June 19-25, 2014, Book 5, Vol. 2, 657-664 pp

ABSTRACT
Natural and anthropogenic radioactivity of the environment is of particular interest for
ecological researches. The purpose of this work is to characterize radioactivity in the
soil of the Black Sea coastal strip in Ureki-Shekvetili zone (Georgia). Measurements
were carried out using gamma-spectrometry method. There were identified up to 21
radionuclides in samples of coastal and bottom soil. Mean activity concentration of
radionuclides of family Th-232 changed from 4.1 up to 16.3 Bq/kg, family U-238 -
from 2.9 up to 17.5 Bq/kg, family U-235 - from 0.2 up to 3.3 Bq/kg. The greatest
activity concentration was observed for K-40 (maximal value was 1127 Bq/kg in bottom soil samples). Activity of anthropogenic radionuclide Cs-137 in the samples of coastal soil varied more than by 2 orders - from 1.7 up to 262 Bq/kg; Cs-137 concentration in bottom soil samples is appreciably less than in coastal soil; activity of anthropogenic radionuclide Cs-134 identified in some cases was 0.12 Bq/kg.

Keywords: radionuclides, soil, Black Sea coast