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

Sediment cores collected from Lake Khanka (Xingkaihu) and Amur Bay were analyzed for concentrations of 137 Cs and 210 Pb, along with the detailed mineralogical and elemental composition. The depth distribution and specific activities of 137 Cs in the sediment cores indicated that the investigated ar...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2023-04, Vol.332 (4), p.959-971
Main Authors: Kuzmenkova, N., Rozhkova, A., Egorin, A., Tokar, E., Grabenko, E., Shi, K., Petrov, V., Kalmykov, S., Hou, X.
Format: Article
Language:English
Subjects:
Cesium 137
Cesium isotopes
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Lead isotopes
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Sedimentation
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Summary:Sediment cores collected from Lake Khanka (Xingkaihu) and Amur Bay were analyzed for concentrations of 137 Cs and 210 Pb, along with the detailed mineralogical and elemental composition. The depth distribution and specific activities of 137 Cs in the sediment cores indicated that the investigated area is not contaminated. Maximum activity of 137 Cs is 10 Bq/kg, and its inventory is 0.16 Bq/m 2 . Despite some variation in mineralogical profiles, the sedimentation process was uniform over the investigated 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.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-023-08813-8