Plutonium and thorium isotopes in the bottom sediments of some Mazurian Lakes (Poland)

Presented are results on the Pu and Th isotopes activity concentration found in the upper part of bottom sediments collected from a deep part of 29 lakes in N-E Poland by diving in 2000. Analyses of Pu isotopic ratios allowed for the discussion of Pu origin. Maximum percentage of (239+240)Pu activit...

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Detalles Bibliográficos
Autores principales: Mietelski, J. W., Wojtycza, Jolanta, Zalewski, Marek, Kapała, Jacek, Tomankiewicz, Ewa, Gaca, Paweł
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6267147/
https://www.ncbi.nlm.nih.gov/pubmed/30546190
http://dx.doi.org/10.1007/s10967-018-6300-8
Descripción
Sumario:Presented are results on the Pu and Th isotopes activity concentration found in the upper part of bottom sediments collected from a deep part of 29 lakes in N-E Poland by diving in 2000. Analyses of Pu isotopic ratios allowed for the discussion of Pu origin. Maximum percentage of (239+240)Pu activity from Chernobyl fallout was 24%. Surface deposition of (239+240)Pu was calculated. No relationship was found between the plutonium and main chemical matrix components of sample nor with the trophic status of the lake. Pu activities were weakly correlated with measured previously (137)Cs activities.

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