Accumulation of plutonium in mammalian wildlife tissues following dispersal by accidental-release tests

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dc.contributor.authorJohansen, MPen_AU
dc.contributor.authorChild, DPen_AU
dc.contributor.authorCaffrey, EAen_AU
dc.contributor.authorHarrison, JJen_AU
dc.contributor.authorHotchkis, MACen_AU
dc.contributor.authorPayne, TEen_AU
dc.contributor.authorIkeda-Ohno, Aen_AU
dc.contributor.authorThiruvoth, Sen_AU
dc.contributor.authorBeresford, NAen_AU
dc.contributor.authorTwining, JRen_AU
dc.contributor.authorDavis, Een_AU
dc.date.accessioned2017-06-20T06:44:09Zen_AU
dc.date.available2017-06-20T06:44:09Zen_AU
dc.date.issued2016-01-01en_AU
dc.date.statistics2017-06-20en_AU
dc.description.abstractWe examined the distribution of plutonium (Pu) in the tissues of mammalian wildlife inhabiting the relatively undisturbed, semi-arid former Taranaki weapons test site, Maralinga, Australia. The accumulation of absorbed Pu was highest in the skeleton (83% ± 6%), followed by muscle (10% ± 9%), liver (6% ± 6%), kidneys (0.6% ± 0.4%), and blood (0.2%). Pu activity concentrations in lung tissues were elevated relative to the body average. Foetal transfer was higher in the wildlife data than in previous laboratory studies. The amount of Pu in the gastrointestinal tract was highly elevated relative to that absorbed within the body, potentially increasing transfer of Pu to wildlife and human consumers that may ingest gastrointestinal tract organs. The Pu distribution in the Maralinga mammalian wildlife generally aligns with previous studies related to environmental exposure (e.g. Pu in humans from worldwide fallout), but contrasts with the partitioning models that have traditionally been used for human worker-protection purposes (approximately equal deposition in bone and liver) which appear to under-predict the skeletal accumulation in environmental exposure conditions. © 2015, Elsevier Ltd.en_AU
dc.identifier.citationJohansen, M., Child, D., Caffrey, E. A., Davis, E., Harrison, J. J., Hotchkis, M., Ikeda-Ohno, A., Payne, T., Thiruvoth, S., Beresford, N. A., & Twining, J. R. (2016). Accumulation of plutonium in mammalian wildlife tissues following dispersal by accidental-release tests. Paper presented to the International Conference on Radioecology and Environmental Radioactivity, Barcelona, Spain, 7-12 September 2014. In Strand, P., & Brown, J. E. (Eds), Journal of Environmental Radioactivity, 151(Part 2), 387-394. doi:10.1016/j.jenvrad.2015.03.031en_AU
dc.identifier.conferenceenddate12 September 2014en_AU
dc.identifier.conferencenameInternational Conference on Radioecology and Environmental Radioactivityen_AU
dc.identifier.conferenceplaceBarcelona, Spainen_AU
dc.identifier.conferencestartdate7 September 2014en_AU
dc.identifier.editorsStrand, P., & Brown, J. E.en_AU
dc.identifier.govdoc8254en_AU
dc.identifier.issn0265-931Xen_AU
dc.identifier.issuePart 2en_AU
dc.identifier.journaltitleJournal of Environmental Radioactivityen_AU
dc.identifier.pagination387-394en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jenvrad.2015.03.031en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8741en_AU
dc.identifier.volume151en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectPlutoniumen_AU
dc.subjectLiveren_AU
dc.subjectParticlesen_AU
dc.subjectSkeletonen_AU
dc.subjectPartitionen_AU
dc.subjectGastrointestinal tracten_AU
dc.titleAccumulation of plutonium in mammalian wildlife tissues following dispersal by accidental-release testsen_AU
dc.typeConference Paperen_AU
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