Radionuclide activities in sediments on the northern coast of Spitsbergen

Autor: Wojtasik Barbara, Świrydowicz Sławomir, Burska Dorota, Nowiński Kamil
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Polish Polar Research, Vol 38, Iss 3, Pp 291-312 (2017)
Druh dokumentu: article
ISSN: 2081-8262
DOI: 10.1515/popore-2017-0019
Popis: The specific activity of natural gamma emitters like actinium (228Ac), bismuth (212Bi, 214Bi), lead (212Pb, 214Pb), potassium (40K), radium (224Ra), thallium (208Tl) and artificial radioisotope caesium (137Cs) was measured in 2005 in the surface layer of marine sediments in the northern Svalbard: Wijdefjorden, Woodfjorden, Vestfjorden and Bockfjorden as well as in the freshwater reservoirs in Andre Land. Nonuniform spatial distribution of these radionuclides was found. Sediment sample from Bockfjorden had the highest specific activities of all natural radionuclides. The specific radioactivity of 137Cs was much lower than specific radioactivities of natural radionuclides but there were differences between investigated locations. The distribution of 137Cs is similar to persistent organic pollutants of the lake sediments in the area.
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