Doses from Rn-222, Ra-226, and Ra-228 in groundwater from Guarani aquifer, South America

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:20:03Z
dc.date.accessioned2022-10-05T16:03:33Z
dc.date.available2014-05-20T15:20:03Z
dc.date.available2022-10-05T16:03:33Z
dc.date.created2014-05-20T15:20:03Z
dc.date.issued2004-01-01
dc.identifierJournal of Environmental Radioactivity. Oxford: Elsevier B.V., v. 76, n. 3, p. 319-335, 2004.
dc.identifier0265-931X
dc.identifierhttp://hdl.handle.net/11449/31404
dc.identifier10.1016/j.jenvrad.2003.11.010
dc.identifierWOS:000223526800005
dc.identifier7430102726026121
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3904169
dc.description.abstractGroundwater samples were analysed for Rn-222, Ra-226, and Ra-228 in Guarani aquifer spreading around I million kin 2 within four countries in South America, and it was found that their activity concentrations are lognormally distributed. Population-weighted average activity concentration for these radionuclides allowed to estimate a value: either slightly higher (0.13 mSv/year) than 0.1 mSv for the total effective dose or two times higher (0.21 mSv/year) than this limit, depending on the choice of the dose conversion factor. Such calculation adds useful information for the appropriate management of this transboundary aquifer that is socially and economically very important to about 15 million inhabitants living in Brazil, Argentina, Uruguay and Paraguay. (C) 2004 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationJournal of Environmental Radioactivity
dc.relation2.263
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectradionuclides
dc.subjectgroundwater
dc.subjectGuarani aquifer
dc.subjectdoses
dc.subjecthealth risk
dc.titleDoses from Rn-222, Ra-226, and Ra-228 in groundwater from Guarani aquifer, South America
dc.typeArtigo


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