Тип публикации: статья из журнала
Год издания: 2022
Идентификатор DOI: 10.1134/S0012496622050179
Ключевые слова: bioindicator, biomagnification, northern pike, radionuclide, siberian daceplutonium, 7440-07-5, cesium-137, plutonium, water pollutants, radioactive
Аннотация: Abstract: This work reports the first data on the content of plutonium (239+240Pu) in the muscle tissues of the Northern pike (Esox lucius) and the Siberian dace (Leiciscus baicalensis) inhabiting the middle reaches of the Yenisey River in the vicinity of the radioactive discharge site. An increase in the content of 239+240Pu and rПоказать полностьюadiocaesium (137Cs) in pike muscles followed an increase in the volume of controlled discharges of these radionuclides to the Yenisey in 2018. The content of 239+240Pu in the muscles of pike (2–11 mBq/kg dry weight) and dace (1–4 mBq/kg dry weight) of the Yenisey fall within the range of values obtained by other authors for the ichthyofauna from water bodies contaminated with radioactive discharges from nuclear power plants and spent nuclear fuel processing plants. The ratio of the activity concentrations 239+240Pu/137Cs in fish muscles, compared with the similar ratios in other hydrobionts, indicates a significantly lower bioavailability of plutonium for fish. The obtained preliminary results make it possible to consider the Northern pike as a more prospective indicator of biologically available plutonium in the Yenisey than the dace. © 2022, Pleiades Publishing, Ltd.
Журнал: Doklady Biological Sciences
Выпуск журнала: Vol. 506, Is. 1
Номера страниц: 141-144
ISSN журнала: 00124966