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Determination of radionuclides in the environment using gamma-spectrometry |
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| Authors: | J A S Júnior J J R F Cardoso C M Silva S V Silveira R S Amaral |
| Institution: | 41701. GERAR - Grupo de Estudos em Radioprote??o e Radioecologia, Department of Nuclear Energy, Federal University of Pernambuco, Av. Prof. Luiz Freire, 1000, CDU, 50740-540, Recife, PE, Brazil 41702. GERAR - Grupo de Estudos em Radioprote??o e Radioecologia, Department of Nuclear Energy, Federal University of Pernambuco; Department of Geology, Federal University of Pernambuco, Av. Prof. Luiz Freire, 1000, CDU, 50740-540, Recife, PE, Brazil; Av. Acad?mico Hélio Ramos s/n, CDU, 50740-530, Recife, PE, Brazil 41703. GERAR - Grupo de Estudos em Radioprote??o e Radioecologia, Department of Nuclear Energy, Federal University of Pernambuco, Av. Prof. Luiz Freire, 1000, CDU, 50740-540, Recife, PE, Brazil 41704. GERAR - Grupo de Estudos em Radioprote??o e Radioecologia, Department of Nuclear Energy, Federal University of Pernambuco, Av. Prof. Luiz Freire, 1000, CDU, 50740-540, Recife, PE, Brazil 41705. GERAR - Grupo de Estudos em Radioprote??o e Radioecologia, Department of Nuclear Energy, Federal University of Pernambuco, Av. Prof. Luiz Freire, 1000, CDU, 50740-540, Recife, PE, Brazil |
| Abstract: | Summary Seventy nine samples, including soil and rock, were collected from the agrestic region of the State of Pernambuco, Brazil. The activity concentrations of 238U and 226Ra in the samples were determined by gamma-spectrometry using an HPGe detector. The concentrations of 238U were 22 Bq . kg-1 to 22 kBq . kg-1. The concentrations of 226Ra were 14 Bq . kg-1 to 17 kBq . kg-1. The 238U/226Ra ratios in the soil were 0.7 to 3.4 (arithmetic mean 1.7). The radiometric data were evaluated to explain 238U and 226Ra migration in the soil and the possible consequences to the environment. |
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