Tracing anthropogenic nuclear activity with I-129 in lake sediment
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
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.
iodine-129, sediment, tracer, chernobyl, nuclear reprocessing
Earth and Related Environmental Sciences Subatomic Physics Engineering and Technology
Research subject Earth Science with specialization in Environmental Analysis; Ion Physics
IdentifiersURN: urn:nbn:se:uu:diva-110489DOI: 10.1016/j.jenvrad.2007.07.010ISI: 000254000100001OAI: oai:DiVA.org:uu-110489DiVA: diva2:277173