The relationship of mineral and geochemical composition to artificial radionuclide partitioning in Yenisei river sediments downstream from Krasnoyarsk

Тип публикации: статья из журнала

Год издания: 2012

Идентификатор DOI: 10.1007/s10661-011-2227-z

Ключевые слова: Geochemical properties; Sediments; Radionuclides; Correlation; The Yenisei River, Correlation, Geochemical properties, Radionuclides, Sediments, The Yenisei River, Artificial radionuclides, Geochemical composition, Geochemical properties, Migration process, Near zone, Radioactive contamination, River sediments, Sediment structures, Study areas, Surface layers, Americium, Cesium, Europium, Optical correlation, Rivers, Sedimentology, Sediments, Radioisotopes, americium 241, cesium 137, cobalt 60, europium 152, mineral, radioisotope, surface water, mineral, radioisotope, concentration (composition), fluvial deposit, geochemistry, mineral, partitioning, radionuclide migration, surface layer, article, chemical composition, controlled study, floodplain, fractionation, geochemical analysis, physical chemistry, pollution monitoring, pollution transport, radiation measurement, radiation monitoring, radioactive contamination, river, Russian Federation, sediment, soil pollution, thermogravimetry, water contamination, chemistry, environmental monitoring, river, sediment, water pollutant, Krasnoyarsk [Russian Federation], Russian Federation, Yenisei River, Environmental Monitoring, Geologic Sediments, Minerals, Radioisotopes, Rivers, Russia, Water Pollutants, Radioactive

Аннотация: Discharges from the Mining-and-Chemical Combine (MCC) of Rosatom, downstream from Krasnoyarsk, resulted in radioactive contamination of sediments of the River Yenisei. The concentration of artificial gamma-emitting radionuclides (Cs-137, Co-60, Eu-152, and Am-241) was determined with the objective to analyze the migration processes leading to the transport of these radionuclides. The content of artificial radionuclides in the surface layers of the study area varied in wide ranges: Cs-137-318-1,800 Bq/kg, Co-60-87-720 Bq/kg, Eu-152-12-287 Bq/kg and Am-241-6-76 Bq/kg. There was a sequence of migration of radionuclides investigated in the surface layer of sediments that were collected in the near zone of influence of the MCC: Am-241 approximate to Eu-152 > Co-60 > Cs-137. Radionuclide species have been found to be directly related to sediment structure and composition.

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Издание

Журнал: ENVIRONMENTAL MONITORING AND ASSESSMENT

Выпуск журнала: Vol. 184, Is. 6

Номера страниц: 3831-3847

ISSN журнала: 01676369

Место издания: DORDRECHT

Издатель: SPRINGER

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