Post-Accident Sporadic Releases of Airborne Radionuclides from the Fukushima Daiichi Nuclear Power Plant Site

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dc.identifier.uri http://dx.doi.org/10.15488/4115
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/4149
dc.contributor.author Steinhauser, Georg ger
dc.contributor.author Niisoe, Tamon ger
dc.contributor.author Harada, Kouji H. ger
dc.contributor.author Shozugawa, Katsumi ger
dc.contributor.author Schneider, Stephanie ger
dc.contributor.author Synal, Hans-Arno ger
dc.contributor.author Walther, Clemens ger
dc.contributor.author Christl, Marcus ger
dc.contributor.author Nanba, Kenji ger
dc.contributor.author Ishikawa, Hirohiko ger
dc.contributor.author Koizumi, Akio ger
dc.date.accessioned 2018-12-06T13:59:37Z
dc.date.available 2018-12-06T13:59:37Z
dc.date.issued 2015
dc.identifier.citation Steinhauser, G.: Post-Accident Sporadic Releases of Airborne Radionuclides from the Fukushima Daiichi Nuclear Power Plant Site. In: Environmental Science & Technology 49 (2015), S. 14028-14035. DOI: https://doi.org/10.1021/acs.est.5b03155 ger
dc.description.abstract The Fukushima nuclear accident (March 11, 2011) caused the widespread contamination of Japan by direct deposition of airborne radionuclides. Analysis of weekly air filters has revealed sporadic releases of radionuclides long after the Fukushima Daiichi reactors were stabilized. One major discharge was observed in August 2013 in monitoring stations north of the Fukushima Daiichi nuclear power plant (FDNPP). During this event, an air monitoring station in this previously scarcely contaminated area suddenly reported 137Cs activity levels that were 30-fold above the background. Together with atmospheric dispersion and deposition simulation, radionuclide analysis in soil indicated that debris removal operations conducted on the FDNPP site on August 19, 2013 are likely to be responsible for this late release of radionuclides. One soil sample in the center of the simulated plume exhibited a high 90Sr contamination (78 ± 8 Bq kg–1) as well as a high 90Sr/137Cs ratio (0.04); both phenomena have usually been observed only in very close vicinity around the FDNPP. We estimate that through the resuspension of highly contaminated particles in the course of these earthmoving operations, gross 137Cs activity of ca. 2.8 × 1011 Bq has been released. ger
dc.language.iso eng ger
dc.publisher Washington D.C. : American Chemical Society
dc.relation.ispartofseries Environmental Science & Technology 49 (2015) ger
dc.rights ACS AuthorChoice License ger
dc.rights.uri https://pubs.acs.org/page/policy/authorchoice_termsofuse.html
dc.subject Fukushima Daiichi nuclear power plant (FDNPP) eng
dc.subject nuclear accident eng
dc.subject Japan eng
dc.subject.ddc 530 | Physik ger
dc.title Post-Accident Sporadic Releases of Airborne Radionuclides from the Fukushima Daiichi Nuclear Power Plant Site ger
dc.type article ger
dc.type Text ger
dc.relation.doi 10.1021/acs.est.5b03155
dc.description.version publishedVersion ger


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