Distribution of Np, Pu, and Am in Water, Suspended Matter, and Bottom Sediments of Peter the Great Bay

Авторы: Kuzmenkova N.V., Petrov V.G., Rozhkova A.K., Tokar E.A., Shi K., Kalmykov S.N., Hou H.
Журнал: Radiochemistry
Том: 66
Номер: 1
Год издания: 2024
Издательство: Pleiades Publishing, Inc.
Местоположение издательства: New York, USA
Первая страница: 1
Последняя страница: 9
DOI: 10.1134/S1066362224010010
Аннотация: The content of 237Np, 239,240Pu, and 241Am in seawater, suspended matter, and bottom sediment coresof the Ussuri and Amur Bays, sampled in July 2021 and August 2022, was analyzed. The activity concentrations of 237Np, 239,240Pu, and 241Am in the water of Peter the Great Bay were determined for the first time and were found to be equal to (19–105) × 10–3, 2.0–5.3, and 24.1–33.5 mBq/m3, respectively. The activity concentrations as well as the 239Pu/240Pu isotope ratio (⁓0.18) in the bottom sediments defi nitely indicate that global fallout is the main source of plutonium in the investigated territory. The sedimentation rates were determined for the Amur Bay (in the Razdolnaya River estuary), 0.9 mm/year, and for the Ussuri Bay, 4.1 mm/year. Actinide transfer coefficients were determined for Peter the Great Bay in the system dissolved forms (including colloids)–suspended matter–bottom sediment.
Добавил в систему: Кузьменкова Наталья Викторовна

	ИСТИНА	Войти в систему Регистрация
	ИСТИНА ИНХС РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА