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Tracing anthropogenic nuclear activity with I-129 in lake sediment
Uppsala University, Disciplinary Domain of Science and Technology, För teknisk-naturvetenskapliga fakulteten gemensamma enheter, Tandem Laboratory. Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Ion Physics. (jonfysik)
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, För teknisk-naturvetenskapliga fakulteten gemensamma enheter, Tandem Laboratory. Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Ion Physics. (jonfysik)
2008 (English)In: Journal of Environmental Radioactivity, ISSN 0265-931X, E-ISSN 1879-1700, Vol. 99, no 2, 219-229 p.Article in journal (Refereed) Published
Abstract [en]

This study reports the first data of I-129 fallout in Scandinavia, covering the last 80 years. The investigation is based on sediment sections from a lake in central Sweden. In addition to analysis of I-129, a combination of several radionuclides (Pb-210, Cs-137 and C-14) was used to establish an accurate chronology of the sediment profile. The concentration of I-129 exhibits an increasing trend (similar to 10(7) to similar to 10(9) atoms/g) during the last 40 years, suggesting a significant atmospheric input from the nuclear reprocessing facilities in Sellafield (UK) and La Hague (France). A peak corresponding to fallout from the Chernobyl accident (1986) is clearly distinguishable, whereas the impact of fallout from the nuclear weapons' tests since the early 1950s is not distinguished.

Place, publisher, year, edition, pages
2008. Vol. 99, no 2, 219-229 p.
Keyword [en]
iodine-129, sediment, tracer, chernobyl, nuclear reprocessing
National Category
Earth and Related Environmental Sciences Subatomic Physics Engineering and Technology
Research subject
Earth Science with specialization in Environmental Analysis; Ion Physics
Identifiers
URN: urn:nbn:se:uu:diva-110489DOI: 10.1016/j.jenvrad.2007.07.010ISI: 000254000100001OAI: oai:DiVA.org:uu-110489DiVA: diva2:277173
Available from: 2009-11-16 Created: 2009-11-16 Last updated: 2017-12-12Bibliographically approved

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Possnert, Göran

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