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Cs, Am and Pu isotopes as tracers of sedimentation processes in the Curonian Lagoon–Baltic Sea system
137 Cs, 241 Am 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 o...
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Published in: | Journal of radioanalytical and nuclear chemistry 2013-05, Vol.296 (2), p.787-792 |
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Main Authors: | , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | 137
Cs,
241
Am 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. δ
13
C
org
was applied for identification of sources of organic matter in the studied area. It has been found that massic activities of
137
Cs in BS varied from 2.1 to 588 Bq/kg. High correlation of
137
Cs massic activities with total organic carbon (TOC) in BS (
r
= 0.75) and with clay minerals (
r
= 0.95) was found.
239,240
Pu massic activities in BS varied from 0.03 to 7.5 Bq/kg. High correlation with TOC was found for
239,240
Pu (
R
= 0.98) as well as for
241
Am (
r
= 0.96). δ
13
C
org
in the studied samples ranged from −22.3 to −31.8 ‰. |
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ISSN: | 0236-5731 1588-2780 |
DOI: | 10.1007/s10967-012-2029-y |