This study reports the first data of 129I 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 129I, a combination of several radionuclides (210Pb, 137Cs and 14C) was used to establish an accurate chronology of the sediment profile. The concentration of 129I exhibits an increasing trend (∼107 to ∼109 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.
- Nuclear reprocessing
ASJC Scopus subject areas
- Environmental Chemistry
- Waste Management and Disposal
- Health, Toxicology and Mutagenesis