Библиографическое описание:Particulate matter from water moss of a large Siberian river: Morphometric, mineral, elemental and radionuclide composition : научное издание / Tatiana A. Zotina [et al.]. - Текст : непосредственный // Journal of Environmental Radioactivity. - 2024. - Т.272, №. - P. 107354. - ISSN 0265-931X. - ISSN 1879-1700, DOI 10.1016/j.jenvrad.2023.107354.
Аннотация:Particulate matter trapped by tufts of water moss Fontinalis antipyretica inhabiting fast flowing waters of the Yenisei River (Siberia, Russia) contaminated with artificial radionuclides has been studied as a potential monitor of radioactive releases to the river. Particulate matter, which was removed from wet tufts of water moss of the Yenisei by rinsing them in water, constituted at least 38% of bulk dry weight of the moss biomass sample and was similar in the contents of chemical elements, minerals, organic matter, and artificial radionuclides to bottom sediments of the Yenisei. Considerable bulk percentages of artificial radionuclides in the sample of water moss, 77% of 137Cs, 44% of 60Co, 41% of 152Eu, 55% of 154Eu, 66% of 241Am, and 34–36% of plutonium were associated with extracellular particles. The comparative study and correlation analysis suggested that 137Cs was mainly associated with mineral particles trapped by moss and that organic matter was responsible for binding plutonium in samples of water moss. Consequently, analysis of extracellular particles of water moss can provide data on contents and speciation of radionuclides transported by water current. Although a considerably high proportion of particulate matter had been washed out from tufts of water moss, some extracellular mineral particulate material and a large number of epiphytic diatoms remained attached to leaves of water moss. Our study proves that particulate matter trapped by water moss can be used as an informative monitor to trace radioactive pollutants transported by water current in running waters deficient in bottom sediments and potential biomonitors.
Издательство:Elsevier Science Publishing Company, Inc.
Источник:Journal of Environmental Radioactivity
Выпуск:Т.272
Номера страниц:107354
Держатель оригинала документа:All-Russian Research Institute for Silviculture and Mechanization of Forestry, Institute of Biophysics, Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences, Institute of Chemistry and Chemical Technology, Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
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