Radiological dose rates to marine fish from the Fukushima Daiichi Accident: the first three years across the North Pacific

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dc.contributor.authorJohansen, MPen_AU
dc.contributor.authorRuedig, Een_AU
dc.contributor.authorTagami, Ken_AU
dc.contributor.authorUchida, Sen_AU
dc.contributor.authorHigley, Ken_AU
dc.contributor.authorBeresford, NAen_AU
dc.date.accessioned2020-05-26T05:38:06Zen_AU
dc.date.available2020-05-26T05:38:06Zen_AU
dc.date.issued2014-12-22en_AU
dc.description.abstractA more complete record is emerging of radionuclide measurements in fish tissue, sediment, and seawater samples from near the Fukushima Daiichi Nuclear Power Plant (FDNPP) and across the Pacific Ocean. Our analysis of publicly available data indicates the dose rates to the most impacted fish species near the FDNPP (median 1.1 mGy d–1, 2012–2014 data) have remained above benchmark levels for potential dose effects at least three years longer than was indicated by previous, data-limited evaluations. Dose rates from 134,137Cs were highest in demersal species with sediment-associated food chains and feeding behaviors. In addition to 134,137Cs, the radionuclide 90Sr was estimated to contribute up to approximately one-half of the total 2013 dose rate to fish near the FDNPP. Mesopelagic fish 100–200 km east of the FDNPP, coastal fish in the Aleutian Islands (3300 km), and trans-Pacific migratory species all had increased dose rates as a consequence of the FDNPP accident, but their total dose rates remained dominated by background radionuclides. A hypothetical human consumer of 50 kg of fish, gathered 3 km from the FDNPP in 2013, would have received a total committed effective dose of approximately 0.95 mSv a–1 from combined FDNPP and ambient radionuclides, of which 0.13 mSv a–1 (14%) was solely from the FDNPP radionuclides and below the 1 mSv a–1 benchmark for public exposure. © 2014 American Chemical Societyen_AU
dc.identifier.citationJohansen, M. P., Ruedig, E., Tagami, K., Uchida, S., Higley. K., & Beresford, N. A. (2015). Radiological dose rates to marine fish from the Fukushima Daiichi Accident: the first three years across the North Pacific. Environmental Science & Technology, 49(3), 1277-1285. doi:10.1021/es505064den_AU
dc.identifier.govdoc9505en_AU
dc.identifier.issn0013-936Xen_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitleEnvironmental Science & Technologyen_AU
dc.identifier.pagination1277-1285en_AU
dc.identifier.urihttps://doi.org/10.1021/es505064den_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9487en_AU
dc.identifier.volume49en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectAnatomyen_AU
dc.subjectFooden_AU
dc.subjectIsotopesen_AU
dc.subjectAquatic ecosystemsen_AU
dc.subjectFukushima Daiichi Nuclear Power Stationen_AU
dc.subjectSeawateren_AU
dc.subjectAquacultureen_AU
dc.subjectFishesen_AU
dc.subjectRadioactivityen_AU
dc.subjectPacific Oceanen_AU
dc.subjectJapanen_AU
dc.titleRadiological dose rates to marine fish from the Fukushima Daiichi Accident: the first three years across the North Pacificen_AU
dc.typeJournal Articleen_AU
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