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Main results of the 2012 joint Norwegian-Russian expedition to the dumping sites of the nuclear submarine K-27 and solid radioactive waste in Stepovogo Fjord, Novaya Zemlya.

https://arctichealth.org/en/permalink/ahliterature276218
Source
J Environ Radioact. 2016 Jan;151 Pt 2:417-26
Publication Type
Article
Date
Jan-2016
Author
Justin P Gwynn
Aleksander Nikitin
Viacheslav Shershakov
Hilde Elise Heldal
Bjørn Lind
Hans-Christian Teien
Ole Christian Lind
Rajdeep Singh Sidhu
Gunnar Bakke
Alexey Kazennov
Denis Grishin
Anastasia Fedorova
Oxana Blinova
Ingrid Sværen
Penny Lee Liebig
Brit Salbu
Cato Christian Wendell
Elisabeth Strålberg
Nailja Valetova
Galina Petrenko
Ivan Katrich
Igor Logoyda
Iolanda Osvath
Isabelle Levy
Jean Bartocci
Mai Khanh Pham
Adam Sam
Hartmut Nies
Anne Liv Rudjord
Source
J Environ Radioact. 2016 Jan;151 Pt 2:417-26
Date
Jan-2016
Language
English
Publication Type
Article
Keywords
Expeditions
Norway
Radiation monitoring
Radioactive Waste - analysis
Russia
Ships
Water Pollutants, Radioactive - analysis
Water Pollution, Radioactive - analysis
Abstract
This paper reports the main results of the 2012 joint Norwegian-Russian expedition to investigate the radioecological situation of the Stepovogo Fjord on the eastern coast of Novaya Zemlya, where the nuclear submarine K-27 and solid radioactive waste was dumped. Based on in situ gamma measurements and the analysis of seawater and sediment samples taken around the submarine, there was no indication of any leakage from the reactor units of K-27. With regard to the radioecological status of Stepovogo Fjord, activity concentrations of all radionuclides in seawater, sediment and biota in 2012 were in general lower than reported from the previous investigations in the 1990s. However in 2012, the activity concentrations of (137)Cs and, to a lesser extent, those of (90)Sr remained elevated in bottom water from the inner part of Stepovogo Fjord compared with surface water and the outer part of Stepovogo Fjord. Deviations from expected (238)Pu/(239,240)Pu activity ratios and (240)Pu/(239)Pu atom ratios in some sediment samples from the inner part of Stepovogo Fjord observed in this study and earlier studies may indicate the possibility of leakages from dumped waste from different nuclear sources. Although the current environmental levels of radionuclides in Stepovogo Fjord are not of immediate cause for concern, further monitoring of the situation is warranted.
PubMed ID
25716076 View in PubMed
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