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dc.contributor.author
Gückel, Katharina
dc.contributor.author
Shinonaga, Taeko
dc.contributor.author
Christl, Marcus
dc.contributor.author
Tschiersch, Jochen
dc.date.accessioned
2017-12-06T08:42:07Z
dc.date.available
2017-10-06T02:47:14Z
dc.date.available
2017-12-06T08:42:07Z
dc.date.issued
2017-09-19
dc.identifier.other
10.1038/s41598-017-12079-y
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/191059
dc.identifier.doi
10.3929/ethz-b-000191059
dc.description.abstract
Concentrations of 239Pu, 240Pu, and 241Am, and atomic ratio of 240Pu/239Pu in freshly fallen snow on Mt. Zugspitze collected in 2014, 2015 and 2016 were determined by accelerator mass spectrometry (AMS). For the sub-femtogram (10−15 g) - level of Pu and Am analysis, a chemical separation procedure combined with AMS was improved and an excellent overall efficiency of about 10−4 was achieved. The concentration of 239Pu ranges from 75 ± 13 ag/kg to 2823 ± 84 ag/kg, of 240Pu from 20.6 ± 5.2 to 601 ± 21 ag/kg, and of 241Am was found in the range of 16.7 ± 5.0–218.8 ± 8.9 ag/kg. Atomic ratios of 240Pu/239Pu for most samples are comparable to the fallout in middle Europe. One exceptional sample shows a higher Pu concentration. High airborne dust concentration, wind directions, high Cs concentrations and the activity ratio of 239+240Pu/137Cs lead to the conclusion that the sample was influenced by Pu in Saharan dust transported to Mt. Zugspitze.
en_US
dc.language.iso
en
en_US
dc.publisher
Nature Publishing Group
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Environmental impact
en_US
dc.subject
Hydrology
en_US
dc.title
Scavenged Pu-239, Pu-240, and Am-241 from snowfalls in the atmosphere settling on Mt. Zugspitze in 2014, 2015 and 2016
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Scientific Reports
ethz.journal.volume
7
en_US
ethz.pages.start
11848
en_US
ethz.size
9 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Departement Physik / Department of Physics::02532 - Institut für Teilchen- und Astrophysik (IPA) / Institute for Particle Physics and Astrophysics (IPA)::08619 - Labor für Ionenstrahlphysik (LIP)
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Departement Physik / Department of Physics::02532 - Institut für Teilchen- und Astrophysik (IPA) / Institute for Particle Physics and Astrophysics (IPA)::08619 - Labor für Ionenstrahlphysik (LIP)
ethz.date.deposited
2017-10-06T02:47:27Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-12-06T08:42:16Z
ethz.rosetta.lastUpdated
2018-09-01T06:10:53Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Scavenged%20Pu-239,%20Pu-240,%20and%20Am-241%20from%20snowfalls%20in%20the%20atmosphere%20settling%20on%20Mt.%20Zugspitze%20in%202014,%202015%20and%202016&rft.jtitle=Scientific%20Reports&rft.date=2017-09-19&rft.volume=7&rft.spage=11848&rft.au=G%C3%BCckel,%20Katharina&Shinonaga,%20Taeko&Christl,%20Marcus&Tschiersch,%20Jochen&rft.genre=article&
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