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I-129 in Swedish rivers: distribution and sources

Kekli, A; Aldahan, A; Meili, M; Possnert, G; Buraglio, N and Stepanauskas, Ramunas LU (2003) In Science of the Total Environment 309(1-3). p.161-172
Abstract
We analyzed the concentration of I-129 in the water of 26 rivers covering most of the runoff from Sweden, with the aim of assessing current contamination levels, distribution patterns and potential sources in freshwater systems of northern Europe. The results show relatively high values (up to 1.4 x 10(9) atoms 1(-1)), steeply decreasing levels with increasing latitude and a positive correlation with Cl concentration and other chemical parameters. The I-129 concentrations observed in south Sweden are probably the highest ever recorded in rivers without any direct discharge from a nuclear installation. The strong latitudinal dependence suggests a northward dilution and possibly depletion of the isotope and a transport from a source located... (More)
We analyzed the concentration of I-129 in the water of 26 rivers covering most of the runoff from Sweden, with the aim of assessing current contamination levels, distribution patterns and potential sources in freshwater systems of northern Europe. The results show relatively high values (up to 1.4 x 10(9) atoms 1(-1)), steeply decreasing levels with increasing latitude and a positive correlation with Cl concentration and other chemical parameters. The I-129 concentrations observed in south Sweden are probably the highest ever recorded in rivers without any direct discharge from a nuclear installation. The strong latitudinal dependence suggests a northward dilution and possibly depletion of the isotope and a transport from a source located to the south. The most plausible source of the I-129 in the studied rivers is atmospheric fallout of I-129 emitted either by atmospheric discharges from the nuclear reprocessing facilities at Sellafield (England) and La Hague (France) or by volatilization from seawater contaminated by the same sources. The question is now whether and at what rate the I-129 concentration in Nordic watersheds will increase further if discharges from nuclear reprocessing continue. (C) 2003 Elsevier Science B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Sweden, rivers, radioactive isotopes, iodine-129, AMS
in
Science of the Total Environment
volume
309
issue
1-3
pages
161 - 172
publisher
Elsevier
external identifiers
  • pmid:12798101
  • wos:000183850800014
  • scopus:0038277488
ISSN
1879-1026
DOI
10.1016/S0048-9697(03)00010-X
language
English
LU publication?
yes
id
56286dfb-4f16-4832-a7a1-7a8cfe724512 (old id 306949)
date added to LUP
2007-09-16 07:15:40
date last changed
2018-10-03 10:15:57
@article{56286dfb-4f16-4832-a7a1-7a8cfe724512,
  abstract     = {We analyzed the concentration of I-129 in the water of 26 rivers covering most of the runoff from Sweden, with the aim of assessing current contamination levels, distribution patterns and potential sources in freshwater systems of northern Europe. The results show relatively high values (up to 1.4 x 10(9) atoms 1(-1)), steeply decreasing levels with increasing latitude and a positive correlation with Cl concentration and other chemical parameters. The I-129 concentrations observed in south Sweden are probably the highest ever recorded in rivers without any direct discharge from a nuclear installation. The strong latitudinal dependence suggests a northward dilution and possibly depletion of the isotope and a transport from a source located to the south. The most plausible source of the I-129 in the studied rivers is atmospheric fallout of I-129 emitted either by atmospheric discharges from the nuclear reprocessing facilities at Sellafield (England) and La Hague (France) or by volatilization from seawater contaminated by the same sources. The question is now whether and at what rate the I-129 concentration in Nordic watersheds will increase further if discharges from nuclear reprocessing continue. (C) 2003 Elsevier Science B.V. All rights reserved.},
  author       = {Kekli, A and Aldahan, A and Meili, M and Possnert, G and Buraglio, N and Stepanauskas, Ramunas},
  issn         = {1879-1026},
  keyword      = {Sweden,rivers,radioactive isotopes,iodine-129,AMS},
  language     = {eng},
  number       = {1-3},
  pages        = {161--172},
  publisher    = {Elsevier},
  series       = {Science of the Total Environment},
  title        = {I-129 in Swedish rivers: distribution and sources},
  url          = {http://dx.doi.org/10.1016/S0048-9697(03)00010-X},
  volume       = {309},
  year         = {2003},
}