Assessment of 238U and 226Ra activity concentration along the Amazon Tall Tower Observatory site

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dc.contributor.authorTAPPIZ, B.pt_BR
dc.contributor.authorSILVA, P.S.C.pt_BR
dc.contributor.authorOSTERMANN, C.K.pt_BR
dc.contributor.authorLIMA, N.P.pt_BR
dc.contributor.authorBRAGUIN, L.N.M.pt_BR
dc.contributor.authorBOTIA, S.pt_BR
dc.contributor.authorLEVIN, I.pt_BR
dc.contributor.authorBUSTILLOS, O.V.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL CONFERENCE ON ENVIRONMENTAL RADIOACTIVITY, 7thpt_BR
dc.date.accessioned2024-02-02T18:02:50Z
dc.date.available2024-02-02T18:02:50Z
dc.date.eventoSeptember 17-22, 2023pt_BR
dc.description.abstractThe Amazon Tall Tower Observatory (ATTO) site is a region located within the Uatumã Sustainable Development Reserve (USRD), approximately 150 km northeast of Manaus city, in the Brazilian state of Amazonas. At the ATTO site, there are 3 tall towers, which are used for studies on the Amazon rainforest and its interaction with the soil and the atmosphere. The activity concentration of 238U and 226Ra was determined in soil samples collected in the footprint of the ATTO site by gamma spectrometry. The activity concentration of these radionuclides is important for understanding the 222Rn exhalation rate and 222Rn flux from soils. Knowledge of the 222Rn flux at the ATTO site can be useful for applications in atmospheric research, e.g., the 222Rn tracer method can be used to estimate local and regional emissions of greenhouse gasses; simulating 222Rn transport is a powerful tool for evaluation and validation of transport schemes in atmospheric chemical transport models. In this study, 39 samples collected from 13 sampling sites along a transect from the ATTO site to the river were analyzed. The highest activity concentrations were found in the Igapó forest (69 ± 2 Bq/kg for 238U and 47 ± 5 Bq/kg for 226Ra), a region near the Uatumã river with prevailing flooded black-water forest, whereas the lowest activity concentrations occurred in the Campina (Savanna on white-sand soils) and Campinanara (white-sand forest) ecosystems (18 ± 1 Bq/kg for 238U and 13 ± 2 Bq/kg for 226Ra), a transition area located between river terraces and the Terra Firme forest.pt_BR
dc.event.siglaENVIRApt_BR
dc.format.extent51-51pt_BR
dc.identifier.citationTAPPIZ, B.; SILVA, P.S.C.; OSTERMANN, C.K.; LIMA, N.P.; BRAGUIN, L.N.M.; BOTIA, S.; LEVIN, I.; BUSTILLOS, O.V. Assessment of 238U and 226Ra activity concentration along the Amazon Tall Tower Observatory site. In: INTERNATIONAL CONFERENCE ON ENVIRONMENTAL RADIOACTIVITY, 7th, September 17-22, 2023, Seville, Spain. <b>Abstract...</b> Seville, Spain: Universidad de Sevilla, 2023. p. 51-51. Disponível em: http://repositorio.ipen.br/handle/123456789/34457.
dc.identifier.orcidhttps://orcid.org/0000-0002-4712-4057
dc.identifier.orcidhttps://orcid.org/0000-0002-9351-9201
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/34457
dc.localSeville, Spainpt_BR
dc.local.eventoSeville, Spainpt_BR
dc.publisherUniversidad de Sevillapt_BR
dc.rightsopenAccesspt_BR
dc.titleAssessment of 238U and 226Ra activity concentration along the Amazon Tall Tower Observatory sitept_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorBRUNO TAPPIZ
ipen.autorCAROLINE KAKO OSTERMANN
ipen.autorLILIAN NINOSHA MURIEL BRAGUIN
ipen.autorJOSE OSCAR WILLIAM VEGA BUSTILLOS
ipen.autorNICOLE PEREIRA DE LIMA
ipen.autorPAULO SERGIO CARDOSO DA SILVA
ipen.codigoautor11684
ipen.codigoautor15008
ipen.codigoautor14703
ipen.codigoautor82
ipen.codigoautor14277
ipen.codigoautor2777
ipen.contributor.ipenauthorBRUNO TAPPIZ
ipen.contributor.ipenauthorCAROLINE KAKO OSTERMANN
ipen.contributor.ipenauthorLILIAN NINOSHA MURIEL BRAGUIN
ipen.contributor.ipenauthorJOSE OSCAR WILLIAM VEGA BUSTILLOS
ipen.contributor.ipenauthorNICOLE PEREIRA DE LIMA
ipen.contributor.ipenauthorPAULO SERGIO CARDOSO DA SILVA
ipen.date.recebimento24-02
ipen.event.datapadronizada2023pt_BR
ipen.identifier.ipendoc30056pt_BR
ipen.notas.internasAbstractpt_BR
ipen.type.genreResumo
relation.isAuthorOfPublicationc0e9f90d-82a0-49d8-8e85-49e140aebace
relation.isAuthorOfPublicationa0078ec3-ecef-4020-8d80-8bb6582a8226
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relation.isAuthorOfPublicationaa898df6-ea14-482c-bc29-b45954bb0542
relation.isAuthorOfPublication.latestForDiscoveryc0e9f90d-82a0-49d8-8e85-49e140aebace
sigepi.autor.atividadeBUSTILLOS, O.V.:82:520:Npt_BR
sigepi.autor.atividadeBRAGUIN, L.N.M.:14703:320:Npt_BR
sigepi.autor.atividadeLIMA, N.P.:14277:310:Npt_BR
sigepi.autor.atividadeOSTERMANN, C.K.:15008:520:Npt_BR
sigepi.autor.atividadeSILVA, P.S.C.:2777:310:Npt_BR
sigepi.autor.atividadeTAPPIZ, B.:11684:520:Spt_BR
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