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Cs, Am and Pu isotopes as tracers of sedimentation processes in the Curonian Lagoon–Baltic Sea system

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Abstract

137Cs, 241Am and Pu isotopes were analyzed in seawater, bottom sediments (BS) and suspended particulate matter samples collected in the Baltic Sea during 1997–2011. The particle size distribution and sequential extraction studies were carried out with the aim to better understand the association of radionuclides with particles and their bonding patterns in the BS. δ13Corg was applied for identification of sources of organic matter in the studied area. It has been found that massic activities of 137Cs in BS varied from 2.1 to 588 Bq/kg. High correlation of 137Cs massic activities with total organic carbon (TOC) in BS (r = 0.75) and with clay minerals (r = 0.95) was found. 239,240Pu massic activities in BS varied from 0.03 to 7.5 Bq/kg. High correlation with TOC was found for 239,240Pu (R = 0.98) as well as for 241Am (r = 0.96). δ13Corg in the studied samples ranged from −22.3 to −31.8 ‰.

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Acknowledgments

The Financial support provided by the Research Council of Lithuania (contract No. MIP-080/2012) is acknowledged. The authors thank students of the Chemical Department of Vilnius University, participating in the experiments, for technical assistance.

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Authors and Affiliations

  1. SRI Center for Physical Sciences and Technology, Vilnius, Lithuania

    G. Lujanienė, N. Remeikaitė-Nikienė, A. Garbaras, R. Skipitytė, R. Barisevičiūtė, I. Kulakauskaitė & T. Ščiglo

  2. EPA, Vilnius, Lithuania

    G. Garnaga, N. Remeikaitė-Nikienė, B. Šilobritienė & A. Stankevičius

  3. SRI Nature Research Centre, Vilnius, Lithuania

    K. Jokšas

  4. Vilnius University, Vilnius, Lithuania

    K. Jokšas

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  1. G. Lujanienė
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  2. G. Garnaga
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  3. N. Remeikaitė-Nikienė
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  4. K. Jokšas
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  5. A. Garbaras
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  6. R. Skipitytė
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  7. R. Barisevičiūtė
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  8. B. Šilobritienė
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  10. I. Kulakauskaitė
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  11. T. Ščiglo
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Correspondence to G. Lujanienė.

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Lujanienė, G., Garnaga, G., Remeikaitė-Nikienė, N. et al. Cs, Am and Pu isotopes as tracers of sedimentation processes in the Curonian Lagoon–Baltic Sea system. J Radioanal Nucl Chem 296, 787–792 (2013). https://doi.org/10.1007/s10967-012-2029-y

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  • DOI: https://doi.org/10.1007/s10967-012-2029-y

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