Table of Contents
International Journal of Nuclear Energy
Volume 2014 (2014), Article ID 201623, 6 pages
http://dx.doi.org/10.1155/2014/201623
Research Article

Assessment of Tritium Activity in Groundwater at the Nuclear Objects Sites in Lithuania

1Vilnius Gediminas Technical University, Saulėtekio Alėja 11, 10223 Vilnius, Lithuania
2Vilnius University, M. K. Čiurlionio Street 21/27, 03101 Vilnius, Lithuania
3Nature Research Centre, Akademijos Street 2, 08412 Vilnius, Lithuania
4Center for Physical Sciences and Technology, Savanoriu Avenue 231, 02300 Vilnius, Lithuania

Received 28 August 2013; Revised 23 January 2014; Accepted 25 January 2014; Published 12 March 2014

Academic Editor: Joonhong Ahn

Copyright © 2014 Vigilija Cidzikienė et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The assessment of nuclear objects sites in Lithuania, including groundwater characterization, took place in the last few years. Tritium activity in groundwater is a very useful tool for determining how groundwater systems function. Natural and artificial tritium was measured in 8 wells in different layers (from 1.5 to 15 meters depth). The results were compared with other regions of Lithuania also. The evaluated tritium activities varied from 1.8 to 6.4 Bq/L at nuclear objects sites in Lithuania and they are coming to background level (1.83 Bq/L) and other places in Lithuania. The data show, that groundwater at the nuclear power objects sites is not contaminated with artificial tritium. In this work, the vertical tritium transfer from soil water to the groundwater well at nuclear objects site was estimated. The data show that the main factor for vertical tritium transfer to the well depends on the depth of wells.