Тип публикации: статья из журнала

Год издания: 2024

Идентификатор DOI: 10.1134/s1028334x24602335

Аннотация: It has been shown that, after the shutdown of the nuclear reactor at the Rosatom Mining and Chemical Combine (MCC) in 2010, anthropogenic radionuclides (⁶⁰Co, ¹³⁷Cs, ¹⁵²Eu, and ²⁴¹Am) are still detected in the bottom sediments (BS) of the Yenisei River in the MCC-affected area. Data from a comparative analysis of the potential mobility of anthropogenic radionuclides in the Yenisei BS surface and lower layers long after the shutdown of the MCC nuclear reactor are presented for the first time. The mobility of radionuclides was estimated using the well-known procedure of sequential extraction of BS. For ⁶⁰Co, an increase in potential mobility in the lower layers (which are earlier in time of formation) was shown compared to the upper ones for the first time. The radionuclide ¹³⁷Cs retains high binding strength to mineral matter of BS (close to 100%) regardless of the time factor. The long-term preservation of the high potential mobility of the radionuclides ²⁴¹Am and ¹⁵²Eu in BS, as well as the increase in potential mobility of ⁶⁰Co over time, for the first time makes it possible to consider these radionuclides as potentially bioavailable in the ecosystem of the Yenisei River.

Журнал: Doklady Earth Sciences

Выпуск журнала: Т. 517, № 2

Номера страниц: 1314-1319

ISSN журнала: 1028334X

Место издания: Moscow

Издатель: Pleiades Publishing, Ltd.

• Bolsunovsky A. Ya. (Institute of Biophysics, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia)
• Borisov R.V. (Institute of Biophysics, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia)
• Dementyev D.V. (Institute of Biophysics, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia)

• Ядро РИНЦ (eLIBRARY.RU)