Analysis of sedimentation processes in Lake Khanka (Xingkaihu) and Amur Bay using 137Cs and 210Pbex tracers

Авторы: Kuzmenkova N., Rozhkova A., Egorin A., Tokar E., Grabenko E., Shi K., Petrov V.G., Kalmykov S., Hou X.
Журнал: Journal of Radioanalytical and Nuclear Chemistry
Год издания: 2023
Издательство: Akademiai Kiado
Местоположение издательства: Hungary
DOI: 10.1007/s10967-023-08813-8
Аннотация: Sediment cores collected from Lake Khanka (Xingkaihu) and Amur Bay were analyzed for concentrations of 137Cs and 210Pb,along with the detailed mineralogical and elemental composition. The depth distribution and specific activities of 137Cs inthe sediment cores indicated that the investigated area is not contaminated. Maximum activity of 137Cs is 10 Bq/kg, and itsinventory is 0.16 Bq/m2. Despite some variation in mineralogical profiles, the sedimentation process was uniform over theinvestigated period. The sedimentation rate in the eastern part of Lake Khanka (Xingkaihu) was estimated to be 1.6 mm/year, and 0.43–0.5 mm/year in Amur Bay.
Добавил в систему: Кузьменкова Наталья Викторовна

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