Depth profiles of I-129 species in the Bothnian Sea
2013 (English)In: Journal of Radioanalytical and Nuclear Chemistry, ISSN 0236-5731, E-ISSN 1588-2780, Vol. 295, no 2, 1459-1463 p.Article in journal (Refereed) Published
The Bothnian Sea which is located between Finland and Sweden represents an important source of fresh water to the Baltic Sea. We here present new data on the radioactive isotope I-129 species from water samples collected in December 2009 at different depths in the Bothnian Sea. Concentrations of I-129(-) (iodide) in the Bothnian Sea range from 14 x 10(8) to 32 x 10(8) atoms/L, while (IO3)-I-129 (-) (iodate) concentrations are relatively low and fluctuating at 1 x 10(8) atoms/L. For nutrients data determined in the same samples as I-129, significant correlations could be found between I-129(-) and total P, NO3-N, SiO3-Si, but rather poor with NH4-N. The correlations suggest comparable source pathway of I-129(-) and nutrient parameters, while the source of NH4-N may be different. The small amounts and negligible change of (IO3)-I-129 (-) indicate prevailing extensive reduction of iodate in the Baltic Sea.
Place, publisher, year, edition, pages
2013. Vol. 295, no 2, 1459-1463 p.
Radioactive iodine, Bothnian Sea, I-129, AMS, Speciation
IdentifiersURN: urn:nbn:se:uu:diva-182356DOI: 10.1007/s10967-012-1923-7ISI: 000313713300091OAI: oai:DiVA.org:uu-182356DiVA: diva2:559560