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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
21/11/2018 |
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Data da última atualização: |
11/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RIBEIRO, F. C. A.; LAURIA, D. da C.; SILVA, J. I. R.; LIMA, E. S. A.; AMARAL SOBRINHO, N. M. B. do; PEREZ, D. V. |
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Afiliação: |
FERNANDO CARLOS ARAUJO RIBEIRO, INSTITUTO DE RADIOPROTEÇÃO E DOSIMETRIA-RJ; DEJANIRA DA COSTA LAURIA, INSTITUTO DE RADIOPROTEÇÃO E DOSIMETRIA-RJ; JOSÉ IVAN RODRIGUES SILVA, INSTITUTO DE RADIOPROTEÇÃO E DOSIMETRIA-RJ; ERICA SOUTO ABREU LIMA, UFRRJ; NELSON MOURA BRASIL DO AMARAL SOBRINHO, UFRRJ; DANIEL VIDAL PEREZ, CNPS. |
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Título: |
Baseline and quality reference values for natural radionuclides in soils of Rio de Janeiro State, Brazil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 42, article e0170146, 2018. |
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DOI: |
https://doi.org/10.1590/18069657rbcs20170146 |
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Idioma: |
Inglês |
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Conteúdo: |
A first large-scale systematic survey of natural radioactivity contents of soils of the state of Rio de Janeiro is presented, focused on the establishment of Quality Reference Values (QRVs). Undisturbed soil samples were collected from 243 areas and analyzed by gamma spectrometry. The activity contents varied largely, ranging from 12.2 to 1,029 Bq kg-1 for 40K (geometric mean of 111.1 Bq kg-1), from 3.5 to 99.8 Bq kg-1 for 226Ra (geometric mean of 29.7 Bq kg-1), and from 5.4 to 314.5 Bq kg-1 for 228Ra (geometric mean of 67.1 Bq kg-1). The highest contents of radium isotopes were found in soils developed on igneous rocks (Leptosol), and the lowest in a soil of sedimentary origin (Podzol). Among the different soil types, the radioisotope contents differed substantially. Separate QRVs were calculated for each radionuclide by the 75th and 90th percentile approach, and the QRVs were estimated for each soil type. The results emphasized the restrictiveness of QRVs based on the 75th percentile or of a single overall QRV for all soils. Therefore, rather than estimating a separate QRV for each radionuclide for the State, we suggest the use of an upper threshold value, defined as the 90th percentile, and a specific QRV for each soil type area. |
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Palavras-Chave: |
Valores de referência de qualidade. |
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Thesagro: |
Potássio; Rádio; Solo. |
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Thesaurus Nal: |
Potassium; Radium; Soil. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/186607/1/2018-046.pdf
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Marc: |
LEADER 02106naa a2200277 a 4500
001 2099789
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008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/18069657rbcs20170146$2DOI
100 1 $aRIBEIRO, F. C. A.
245 $aBaseline and quality reference values for natural radionuclides in soils of Rio de Janeiro State, Brazil.$h[electronic resource]
260 $c2018
520 $aA first large-scale systematic survey of natural radioactivity contents of soils of the state of Rio de Janeiro is presented, focused on the establishment of Quality Reference Values (QRVs). Undisturbed soil samples were collected from 243 areas and analyzed by gamma spectrometry. The activity contents varied largely, ranging from 12.2 to 1,029 Bq kg-1 for 40K (geometric mean of 111.1 Bq kg-1), from 3.5 to 99.8 Bq kg-1 for 226Ra (geometric mean of 29.7 Bq kg-1), and from 5.4 to 314.5 Bq kg-1 for 228Ra (geometric mean of 67.1 Bq kg-1). The highest contents of radium isotopes were found in soils developed on igneous rocks (Leptosol), and the lowest in a soil of sedimentary origin (Podzol). Among the different soil types, the radioisotope contents differed substantially. Separate QRVs were calculated for each radionuclide by the 75th and 90th percentile approach, and the QRVs were estimated for each soil type. The results emphasized the restrictiveness of QRVs based on the 75th percentile or of a single overall QRV for all soils. Therefore, rather than estimating a separate QRV for each radionuclide for the State, we suggest the use of an upper threshold value, defined as the 90th percentile, and a specific QRV for each soil type area.
650 $aPotassium
650 $aRadium
650 $aSoil
650 $aPotássio
650 $aRádio
650 $aSolo
653 $aValores de referência de qualidade
700 1 $aLAURIA, D. da C.
700 1 $aSILVA, J. I. R.
700 1 $aLIMA, E. S. A.
700 1 $aAMARAL SOBRINHO, N. M. B. do
700 1 $aPEREZ, D. V.
773 $tRevista Brasileira de Ciência do Solo$gv. 42, article e0170146, 2018.
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Embrapa Solos (CNPS) |
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| 1. |  | RIBEIRO, F. C. A.; LAURIA, D. da C.; SILVA, J. I. R.; LIMA, E. S. A.; AMARAL SOBRINHO, N. M. B. do; PEREZ, D. V. Baseline and quality reference values for natural radionuclides in soils of Rio de Janeiro State, Brazil. Revista Brasileira de Ciência do Solo, v. 42, article e0170146, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
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