Estimation of exposure levels of terrestrial biota and radiation exposure around IPEN’s facilities

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dc.contributor.authorCAVALCANTE, F.pt_BR
dc.contributor.authorNISTI, M.B.pt_BR
dc.contributor.authorSAUEIA, C.H.R.pt_BR
dc.coverageNacionalpt_BR
dc.date.accessioned2021-08-02T16:16:46Z
dc.date.available2021-08-02T16:16:46Z
dc.date.issued2021pt_BR
dc.description.abstractHumans are exposed to natural radiation; soil is a major source of external and internal exposure of radiation. The aim of this study is to evaluate the exposure levels of terrestrial biota and to estimate the radiation exposure around Instituto of Pesquisas Energéticas e Nucleares (IPEN) facilities. The ERICA Tool was used to calculate the exposure levels of terrestrial biota; the estimation of radiation exposure for humans was determined using a model proposed by UNSCEAR and Excess Lifetime Cancer Risk. Six soil points were collected and their activity concentrations were measured by gamma spectrometry. Two soil points showed a risk coefficient greater than 1, suggesting that the screening dose ratio of 10μGy h-1 might be exceeding for the most exposed species, namely lichen and bryophytes, even though the activity concentration values of the analyzed radionuclides showed no evidence of soil contamination due to the atmospheric discharges of the IPEN facilities. Thus, the radioactive discharges in the soil from all facilities are negligible. Hence, the authors concluded that the ERICA Tool can be useful in assisting environmental radiological monitoring program for decision-making, especially regarding: points collected, sample types and sampling frequency.pt_BR
dc.format.extent1-13pt_BR
dc.identifier.citationCAVALCANTE, F.; NISTI, M.B.; SAUEIA, C.H.R. Estimation of exposure levels of terrestrial biota and radiation exposure around IPEN’s facilities. <b>Brazilian Journal of Radiation Sciences</b>, v. 9, n. 1A, p. 1-13, 2021. DOI: <a href="https://dx.doi.org/10.15392/bjrs.v9i1A.1235">10.15392/bjrs.v9i1A.1235</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/32078.
dc.identifier.doi10.15392/bjrs.v9i1A.1235pt_BR
dc.identifier.fasciculo1Apt_BR
dc.identifier.issn2319-0612pt_BR
dc.identifier.percentilfiSem Percentilpt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/32078
dc.identifier.vol9pt_BR
dc.relation.ispartofBrazilian Journal of Radiation Sciencespt_BR
dc.rightsopenAccesspt_BR
dc.sourceMeeting on Nuclear Applications (ENAN), 14th, October 21-25, 2019, Santos, SPpt_BR
dc.subjectactivity levels
dc.subjectbryophyta
dc.subjectenvironmental exposure pathway
dc.subjectgamma spectroscopy
dc.subjecthigh-purity ge detectors
dc.subjecthuman populations
dc.subjectionizing radiations
dc.subjectlichens
dc.subjectsoils
dc.subjectunscear
dc.titleEstimation of exposure levels of terrestrial biota and radiation exposure around IPEN’s facilitiespt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorFERNANDA CAVALCANTE
ipen.autorCATIA HELOISA ROSIGNOLI SAUEIA
ipen.autorMARCELO BESSA NISTI
ipen.codigoautor11276
ipen.codigoautor1986
ipen.codigoautor639
ipen.contributor.ipenauthorFERNANDA CAVALCANTE
ipen.contributor.ipenauthorCATIA HELOISA ROSIGNOLI SAUEIA
ipen.contributor.ipenauthorMARCELO BESSA NISTI
ipen.date.recebimento21-08
ipen.identifier.fiSem F.I.pt_BR
ipen.identifier.ipendoc27849pt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication88b210ab-2552-4ffb-8ad6-8019ce016b6f
relation.isAuthorOfPublication53e5a003-b773-4e77-ac4d-ab0da69a0d2e
relation.isAuthorOfPublicationb935386b-b487-4939-a875-79c100ea555f
relation.isAuthorOfPublication.latestForDiscovery88b210ab-2552-4ffb-8ad6-8019ce016b6f
sigepi.autor.atividadeSAUEIA, C.H.R.:1986:320:Npt_BR
sigepi.autor.atividadeNISTI, M.B.:639:340:Npt_BR
sigepi.autor.atividadeCAVALCANTE, F.:11276:340:Spt_BR
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