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Title: DISTRIBUTION OF RADIOCAESIUM IN ARCTIC MARINE SEDIMENTS
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DISTRIBUTION OF RADIOCAESIUM IN ARCTIC MARINE SEDIMENTS
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1314-2704
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English
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18
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3.2
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The purpose of this research study is to identify the characteristics of marine sediments, which determine the accumulation of different radionuclides as a result of statistical analyses. The main attention is paid to the accumulation of radionuclides from the data on grain size and component-wise composition of sediments. Radioactive pollution is the result of various events: waste discharge of industrial waters, radioactive waste disposal and breakdowns on atomic submarines. Various areas of Russian Arctic seas such as Novaya Zemlya, Yenisei Gulf and Ob Gulf were exposed to significant emission of radioactive nuclides. Especially dangerous is the accumulation of radionuclides by marine sediments. Accumulation of radioactive isotopes in sediments contributes to the process of bioaccumulation of benthic organisms which leads to further deterioration of living conditions of all groups of aquatic organisms, causing a breach of the vital functions of organisms. The study was based on the material collected by various international expeditions from 1993 to 2009. On the basis of analysis of longitudinal data the dynamics of radiocaesium contamination of marine sediments is given. The spatial distribution of radiocaesium in marine sediments of the Arctic seas of Russia is considered.
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conference
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18th International Multidisciplinary Scientific GeoConference SGEM 2018
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18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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1103-1110
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02-08 July, 2018
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website
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cdrom
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1080
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radiocaesium; radioactivity; sediment; arctic seas
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