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Casacuberta, N. ., Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain, nuria.casacuberta@uab.cat
Masqué, P. ., Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain, pere.masque@uab.cat
Garcia-Orellana, J. ., Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain,
Lopez-Castillo, E. ., Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain,
García-Tenorio, R. ., Universidad de Sevilla, Sevilla, Spain,
Pike, S. ., Woods Hole Oceanographic Institution, Woods Hole, USA, spike@whoi.edu
Buesseler, K. O., Woods Hole Oceanographic Institution, Woods Hole, USA, kbuesseler@whoi.edu

PRESENCE AND FATE OF SR-90 IN SEAWATER OFF JAPAN AS A CONSEQUENCE OF THE FUKUSHIMA DAI-ICHI NUCLEAR ACCIDENT

As a consequence of the Fukushima Dai-ichi nuclear accident, significant amounts of artificial radionuclides were released to the environment. The aim of this work, as part of a major collaborative effort, was to evaluate the presence and fate of 90^Sr released to the marine system. Strontium-90 is a fission product originated in nuclear reactors that is present in the oceans mainly as a result of the radioactive fall-out from the nuclear weapons testing in the 60s. A sampling cruise off Japan was completed in June 2011, from about 30 km from Fukushima to 600 km in the open ocean, paying special attention to the potential role that the Kuroshio Current may play in the transport and distribution of the artificial radionuclides. A total of 58 samples from the surface waters and vertical profiles were collected and analyzed for 90^Sr through the measurement of its decay product 90^Y via radiochemical purification and beta counting. Preliminary results showed 90^Sr concentrations enhanced by at least one order of magnitude at some stations.

Session #:088
Date: 2/21/2012
Time: 15:30
Location: Ballroom E

Presentation is given by student: Yes