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Journal article

Np-237 in peat and lichen in Finland

By Salminen, S.1; Paatero, J.2; Roos, Per3,4,5; Helariutta, K.1

From

University of Helsinki1

Finnish Meteorological Institute2

Radioecology and Tracer Studies, Radiation Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark3

Radiation Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark4

Risø National Laboratory for Sustainable Energy, Technical University of Denmark5

Activity concentrations of 237Np in peat and lichen samples in Finland were determined and contributions from nuclear weapons testing in 1950–1960s and the Chernobyl accident were estimated. 237Np was determined with ICP-MS using 235Np as a tracer. Activity concentrations of 237Np in peat samples varied between 1.98 ± 0.05 and 14.1 ± 0.3 mBq/m2.

The contribution from the Chernobyl accident to the total 237Np deposition in peat was 0.1–13%, the Chernobyl-derived fraction of total 237Np in peat being much lower than the previously determined corresponding Chernobyl-derived fractions of 239+240Pu, 241Pu, 241Am and 244Cm.

Language: English
Publisher: Springer Netherlands
Year: 2009
Pages: 405-413
Journal subtitle: An International Journal Dealing With All Aspects and Applications of Nuclear Chemistry
ISSN: 15882780 and 02365731
Types: Journal article
DOI: 10.1007/s10967-009-0007-9
Keywords

Nuclear technologies Nukleare teknologier Radioecology and tracer studies Radioøkologi og sporstofstudier

Other keywords

Chemistry Chernobyl Deposition Diagnostic Radiology Inorganic Chemistry Neptunium Nuclear Chemistry Nuclear Physics, Heavy Ions, Hadrons Peat Physical Chemistry

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