Panitskiy A V, Lukashenko S N
Institute of Radiation Safety and Ecology, Kurchatov, Kazakhstan.
Institute of Radiation Safety and Ecology, Kurchatov, Kazakhstan.
J Environ Radioact. 2015 Jun;144:32-40. doi: 10.1016/j.jenvrad.2015.02.021. Epub 2015 Mar 17.
The paper provides data on environmental contamination due to radionuclides' migration with water. As a result of investigations there was obtained data on character of contamination of soil cover, surface water and underflow from tunnels of Degelen massif. Character of radionuclides' spatial distribution in environment was also shown. Mobility ranges of radionuclides' vertical and horizontal movements have been established in soils both across and along the stream flow. There was also shown a possibility to forecast radionuclides' concentration in soil by specific activity of these radionuclides in water. Different concentrations of radionuclides in associated components of the ecosystem (surface waters - ground waters - soils) have shown disequilibrium of their condition in this system. Generalization of investigation results for tunnel water streams' with water inflows, chosen as investigation objects in this work, allows to forecast radionuclides' behavior in meadow soils and other ecosystems of water streams from tunnels of Degelen test site. Based on analysis of curves, describing radionuclides' behavior in horizontal direction, we can forecast, that at this stage (137)Cs and (239+240)Pu would not be distributed more than 1.5 km from the access to the daylight surface, (90)Sr - not more than 2 km.
该论文提供了有关放射性核素随水迁移导致环境污染的数据。通过调查，获得了关于德格连地块隧道土壤覆盖层、地表水和地下水流污染特征的数据。还展示了放射性核素在环境中的空间分布特征。已确定了放射性核素在土壤中沿水流横向和纵向垂直与水平移动的迁移范围。还表明可以根据水中这些放射性核素的比活度预测土壤中放射性核素的浓度。生态系统相关组分（地表水 - 地下水 - 土壤）中不同浓度的放射性核素表明该系统中它们的状态不均衡。对本研究中选为调查对象的有水流流入的隧道水流调查结果进行总结，有助于预测德格连试验场隧道水流在草甸土壤和其他生态系统中放射性核素的行为。基于对描述放射性核素水平方向行为曲线的分析，我们可以预测，在现阶段，（137）铯和（239 + 240）钚在距通向地表日光处不超过1.5公里的范围内分布，（90）锶不超过2公里。
