Natural radioactivity and estimated dose in brazilian tobacco products

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dc.contributor.authorOLIVEIRA, ALINE S.G.R. de
dc.contributor.authorDAMATTO, SANDRA R.
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL NUCLEAR ATLANTIC CONFERENCEpt_BR
dc.date.accessioned2018-01-05T10:55:06Z
dc.date.available2018-01-05T10:55:06Z
dc.date.eventoOctober 22-27, 2017pt_BR
dc.description.abstractTobacco products contain significant concentrations of natural radionuclides from 238U and 232Th series. The consumption of these products increases the internal dose of radiation due to the inhalation of the natural radionuclides. Studies from literature emphasize that tobacco products have measurable concentrations of 210Po and 210Pb, and may contribute significantly to the increase of internal radiation dose and a large number of lung cancer in smokers. The objectives of this work were to determine the concentrations (Bq/kg) of the radionuclides 226Ra, 228Ra, 210Pb and 210Po and calculate the internal doses of radiation due to the consumption of these products. In the present work 71 samples were analyzed, consisting of cigars, unflavored and flavored cigarettes, straw cigarettes, cigars and roll smoke. The samples were purchased in Brazilian popular commercial establishments. The analytical techniques employed were the gross alpha and beta measurement after radiochemical separation for the radionuclides 226Ra, 228Ra, 210Pb and alpha spectrometry for 210Po. The internal radiation doses were calculated with the activity concentrations determined and using the ICRP Publication 119 dose coefficients. An annual consumption of 3,650 kg of tobacco products was considered. The inhalation rates of each radionuclide followed the rates of the current literature. The estimated mean annual dose varied from 76 to 263μSv/y for the tobacco product studied in this work.pt_BR
dc.event.siglaINACpt_BR
dc.identifier.citationOLIVEIRA, ALINE S.G.R. de; DAMATTO, SANDRA R. Natural radioactivity and estimated dose in brazilian tobacco products. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 22-27, 2017, Belo Horizonte, MG. <b>Proceedings...</b> Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear, 2017. Disponível em: http://repositorio.ipen.br/handle/123456789/28226.
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28226
dc.localRio de Janeiro, RJpt_BR
dc.local.eventoBelo Horizonte, MGpt_BR
dc.publisherAssociação Brasileira de Energia Nuclearpt_BR
dc.rightsopenAccesspt_BR
dc.subjectabsorbed radiation doses
dc.subjectactivity levels
dc.subjectalpha decay
dc.subjectalpha spectroscopy
dc.subjectbeta decay
dc.subjectconcentration ratio
dc.subjectinhalation
dc.subjectnatural radioactivity
dc.subjectthorium 232
dc.subjecttobacco products
dc.subjecturanium 238
dc.titleNatural radioactivity and estimated dose in brazilian tobacco productspt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorSANDRA REGINA DAMATTO
ipen.autorALINE SEBASTIANE GONÇALES RAMOS DE OLIVEIRA
ipen.codigoautor537
ipen.codigoautor12679
ipen.contributor.ipenauthorSANDRA REGINA DAMATTO
ipen.contributor.ipenauthorALINE SEBASTIANE GONÇALES RAMOS DE OLIVEIRA
ipen.date.recebimento18-01pt_BR
ipen.event.datapadronizada2017pt_BR
ipen.identifier.ipendoc24051pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication400a52c2-e76f-4536-9966-d7fe1476f2b4
relation.isAuthorOfPublication742c553f-b741-4e33-bbac-5f9e0a1ac205
relation.isAuthorOfPublication.latestForDiscovery742c553f-b741-4e33-bbac-5f9e0a1ac205
sigepi.autor.atividadeOLIVEIRA, ALINE S.G.R. DE:12679:340:Spt_BR
sigepi.autor.atividadeDAMATTO, SANDRA R.:537:340:Npt_BR
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