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Variations of plutonium isotopic ratios in Antarctic ecosystems |
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| Authors: | Katarzyna M. Szufa Jerzy W. Mietelski Robert Anczkiewicz Dariusz Sala Maria A. Olech |
| Affiliation: | 1.Institute of Nuclear Physics,Polish Academy of Sciences,Kraków,Poland;2.Institute of Geological Sciences, Research Centre in Kraków,Polish Academy of Sciences,Kraków,Poland;3.Institute of Botany,Jagiellonian University,Kraków,Poland;4.Department of Antarctic Biology, Institute of Biochemistry and Biophysics,Polish Academy of Sciences,Warszawa,Poland |
| Abstract: | The aim of the article was to verify the hypothesis concerning the diversification of plutonium sources in the natural environment of Antarctica. Plutonium activity and atom ratios were analyzed in two groups of biological samples: terrestrial and marine. Both isotopic ratios in the terrestrial set were consistent with global radioactive fallout ratios. The average activity ratio in the marine ecosystem was lower than global radioactive fallout. At the same time mass ratio values in this group turned out to be surprisingly varied. Analysis of the results showed statistically significant differences between the marine and terrestrial ecosystems. |
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