Recent developments in the modelling of radionuclide uptake, radiation dose and effects in wildlife

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dc.contributor.authorJohansen, MPen_AU
dc.contributor.authorBeresford, NAen_AU
dc.contributor.authorHoward, BJen_AU
dc.contributor.authorHinton, TGen_AU
dc.contributor.authorBollhöfer, Aen_AU
dc.contributor.authorDoering, Cen_AU
dc.contributor.authorHirth, GAen_AU
dc.contributor.authorGrzechnik, Men_AU
dc.contributor.authorRuedig, Een_AU
dc.contributor.authorPayne, TEen_AU
dc.contributor.authorTwining, JRen_AU
dc.date.accessioned2017-02-20T03:28:04Zen_AU
dc.date.available2017-02-20T03:28:04Zen_AU
dc.date.issued2014-09en_AU
dc.date.statistics2016-02-20en_AU
dc.description.abstractOf the ~600 scientific publications on the Fukushima event, more than 80% relate to themes of transport of radionuclides in environmental media, transfer to wildlife and foodstuffs, and dose to environmental receptors. This focus reflects a continued need for development and harmonisation of radiological modelling approaches such as has been underway through recent IAEA and ICRP initiatives (e.g. EMRAS I and II, MODARIA). Key developments in improving the understanding of uptake of radionuclides in wildlife include establishing the Wildlife Transfer Parameter Database and related IAEA handbook on transfer to wildlife. These sources provide access to a comprehensive collection of transfer parameters, including input from Australian sources (www.wildlifetransferdatabase.org). Key improvements were highlighted in a recent Journal of Environmental Radioactivity special issue (Vol. 121). Dose modelling for wildlife continues to be challenged by the high diversity of biotic types (plankton to whales) and the breadth of exposure scenarios in diverse ecosystems. Modelling codes (e.g. ERICA Tool, RESRAD-Biota) are undergoing updates of their transfer parameters, improvement of capabilities such as probabilistic analysis (e.g. Monte Carlo), and harmonization of approaches through IAEA model testing exercises (e.g., Little Forest Burial Ground biota dose modelling assessment). A recent development has been the use of voxel dosimetry approaches which build on the standard simplified ellipsoid approach by modelling the absorbed doses in individual organs. Recent improvements in defining dose effects to environmental receptors have focused on updating the FREDERICA Radiation Effects Database. The more comprehensive data have allowed for the updating/development of new Species Sensitivity Distributions that better support the benchmark values for potential dose effects, and for improving estimation of population effects (rather than individuals) upon which the environmental protection strategies are based.en_AU
dc.identifier.citationJohansen, M.P., Beresford, N. A., Howard, B.J, Hinton, T.G., Bolhoefer, A., Doering, C., Hirth, G., Grezechnik, G., Ruedig, E., Payne, T. E. & Twining, J.R. (2014). Recent developments in the modelling of radionuclide uptake, radiation dose and effects in wildlife. Paper presented at SPERA 2014, 1-5 September 2014, 13th South Pacific Environmental Radioactivity Association Conference Charles Darwin University, Darwin, Northern Territory, Australia.en_AU
dc.identifier.conferenceenddate5 September 2014en_AU
dc.identifier.conferencenameSPERA 2014 - 13th South Pacific Environmental Radioactivity Association Conference Charles Darwin Universityen_AU
dc.identifier.conferenceplaceDarwin, Australiaen_AU
dc.identifier.conferencestartdate1 September 2014en_AU
dc.identifier.govdoc7905en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8319en_AU
dc.language.isoenen_AU
dc.publisherSouth Pacific Environmental Radioactivity Associationen_AU
dc.subjectRadioisotopesen_AU
dc.subjectWild animalsen_AU
dc.subjectRadioactivityen_AU
dc.subjectEcosystemsen_AU
dc.subjectReceptorsen_AU
dc.subjectIAEAen_AU
dc.titleRecent developments in the modelling of radionuclide uptake, radiation dose and effects in wildlifeen_AU
dc.typeConference Abstracten_AU
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