Biota dose assessment for environmental radiotracer releases in aquatic environments

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dc.contributor.authorHughes, CEen_AU
dc.contributor.authorJohansen, MPen_AU
dc.contributor.authorWilson, RCen_AU
dc.contributor.authorCopplestone, Den_AU
dc.contributor.authorVives i Batlle, Jen_AU
dc.date.accessioned2022-12-20T01:16:31Zen_AU
dc.date.available2022-12-20T01:16:31Zen_AU
dc.date.issued2012-10-17en_AU
dc.date.statistics2022-02-02en_AU
dc.description.abstractThe intentional release of short lived radioisotopes to trace transport and partitioning processes in the environment has been in decline in recent decades due to negative regulatory and public perceptions of the associated risks. Radiotracing is subject to significant regulatory requirements; in some jurisdictions one of these requirements is to demonstrate that radiation exposure to ecosystems is limited to ensure protection of populations of species. Radiation exposures from radiotracer studies are localised, transient and infrequent by nature, making it difficult to apply guidelines and biota dose assessment tools that are designed for chronic and widespread exposure scenarios. We will discuss the limitations of available guidelines and dose assessment methodologies when applied to radiotracer studies. A range of case studies for biota dose assessment will be presented using a variety of available tools including the ERICA Assessment Tool, the methodology of Copplestone et al. (2001) and a dynamic dose assessment model (Vives I Batlle et al., 2008). These case studies demonstrate that steady state, spatial homogeneity and bioavailability assumptions inherent in available dose assessment tools may lead to an over-estimate of dose to biota from radiotracer studies, and that many radiotracer studies can be conducted with minimal dose to biota.en_AU
dc.identifier.citationHughes, C. E., Johansen, M. P., Wilson, R. C., Copplestone, D., & Vives I Batlle, J. (2012). Biota dose assessment for environmental radiotracer releases in aquatic environments. Paper presented to the 12th South Pacific Environmental Radioactivity Association Conference (SPERA 2012), Sydney, Australia, 16 October – 19 October 2012 . Lucas Heights, NSW: Australian Nuclear Science and Technology Organisation. (pp. 33).en_AU
dc.identifier.conferenceenddate19 October 2012en_AU
dc.identifier.conferencename12th South Pacific Environmental Radioactivity Association Conference (SPERA 2012)en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate16 October 2012en_AU
dc.identifier.pagination33en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14213en_AU
dc.language.isoenen_AU
dc.publisherAustralian Nuclear Science and Technology Organisationen_AU
dc.subjectRadioisotopesen_AU
dc.subjectEcological concentrationen_AU
dc.subjectEnvironmental transporten_AU
dc.subjectEnvironmenten_AU
dc.subjectRadiation dosesen_AU
dc.subjectEcosystemsen_AU
dc.titleBiota dose assessment for environmental radiotracer releases in aquatic environmentsen_AU
dc.typeConference Abstracten_AU
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