Тип публикации: статья из журнала

Год издания: 2024

Идентификатор DOI: 10.1016/j.jenvrad.2023.107354

Ключевые слова: Fontinalis antipyretica, sem, radiocesium, europium, bottom sediments, Epiphytic diatom

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 oПоказать полностьюf 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.

Журнал: Journal of Environmental Radioactivity

Выпуск журнала: Т.272

Номера страниц: 107354

ISSN журнала: 0265931X

Издатель: Elsevier Science Publishing Company, Inc.

• Zotina Tatiana A. (Institute of Fundamental Biology and Biotechnology, Siberian Federal University)
• Sukhorukov Vladislav V. (Institute of Fundamental Biology and Biotechnology, Siberian Federal University)
• Zhyzhaev Anatoly M. (Institute of Chemistry and Chemical Technology, Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences)
• Alexandrova Yuliyana V. (Institute of Biophysics, Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences)
• Karpov Anton D. (All-Russian Research Institute for Silviculture and Mechanization of Forestry)
• Melgunov Mikhail S. (Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences)
• Miroshnichenko Leonid V. (Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences)

• Ядро РИНЦ (eLIBRARY.RU)