Distribuição das Concentrações de Atividade de 238U e 232Th em Amostras de Solo do Estado de Minas Gerais
Soil contamination by radionuclides, heavy metal, pesticides, among others, threatens ecosystems and human health. Environmental monitoring bodies and agencies need reference values for these contaminants in order to assess the impacts of anthropogenic activities on soil contamination. Quality Refer...
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| Format: | Article |
| Language: | English |
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Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
2016-11-01
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| Series: | Brazilian Journal of Radiation Sciences |
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| Online Access: | https://bjrs.org.br/revista/index.php/REVISTA/article/view/208 |
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| author | Claudia Marques Peixoto Patrícia Rocha Maciel Fernandes Paulo Cesár Horta Rodrigues Vanusa Maria Delage Feliciano |
| author_facet | Claudia Marques Peixoto Patrícia Rocha Maciel Fernandes Paulo Cesár Horta Rodrigues Vanusa Maria Delage Feliciano |
| author_sort | Claudia Marques Peixoto |
| collection | DOAJ |
| description | Soil contamination by radionuclides, heavy metal, pesticides, among others, threatens ecosystems and human health. Environmental monitoring bodies and agencies need reference values for these contaminants in order to assess the impacts of anthropogenic activities on soil contamination. Quality Reference Values (QRVs) reflect the natural concentrations of contaminants in soils without anthropic interference and must be regionally established. The aim of this study was the determination of natural concentrations and quality reference values for U and Th in soils from Minas Gerais State, Brazil. A large variation of the natural activity concentration of these radionuclides in soil was observed. The QRV for U was 86.5 Bq kg-1 and 90.81 Bq kg-1 for Th. Statistical analysis showed that the two elements have a positive correlation with the clay and organic matter content in soil, and with the soil orders Ultisol and Inceptisol. Uranium shows a strong correlation with As, Sb, Se and Hg, while Thorium does not show correlation with any of the trace elements. |
| format | Article |
| id | doaj-art-8cbcedbfcf774924ba27db27a750d730 |
| institution | Kabale University |
| issn | 2319-0612 |
| language | English |
| publishDate | 2016-11-01 |
| publisher | Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) |
| record_format | Article |
| series | Brazilian Journal of Radiation Sciences |
| spelling | doaj-art-8cbcedbfcf774924ba27db27a750d7302025-08-20T03:27:26ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122016-11-014210.15392/bjrs.v4i2.208165Distribuição das Concentrações de Atividade de 238U e 232Th em Amostras de Solo do Estado de Minas GeraisClaudia Marques Peixoto0Patrícia Rocha Maciel Fernandes1Paulo Cesár Horta Rodrigues2Vanusa Maria Delage Feliciano3Comissão Nacional de Energia Nuclear/Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNENFundação Estadual do Meio Ambiente de Minas Gerais - FEAMComissão Nacional de Energia Nuclear/Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNENComissão Nacional de Energia Nuclear/Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNENSoil contamination by radionuclides, heavy metal, pesticides, among others, threatens ecosystems and human health. Environmental monitoring bodies and agencies need reference values for these contaminants in order to assess the impacts of anthropogenic activities on soil contamination. Quality Reference Values (QRVs) reflect the natural concentrations of contaminants in soils without anthropic interference and must be regionally established. The aim of this study was the determination of natural concentrations and quality reference values for U and Th in soils from Minas Gerais State, Brazil. A large variation of the natural activity concentration of these radionuclides in soil was observed. The QRV for U was 86.5 Bq kg-1 and 90.81 Bq kg-1 for Th. Statistical analysis showed that the two elements have a positive correlation with the clay and organic matter content in soil, and with the soil orders Ultisol and Inceptisol. Uranium shows a strong correlation with As, Sb, Se and Hg, while Thorium does not show correlation with any of the trace elements.https://bjrs.org.br/revista/index.php/REVISTA/article/view/208contaminationsoilradionuclides |
| spellingShingle | Claudia Marques Peixoto Patrícia Rocha Maciel Fernandes Paulo Cesár Horta Rodrigues Vanusa Maria Delage Feliciano Distribuição das Concentrações de Atividade de 238U e 232Th em Amostras de Solo do Estado de Minas Gerais Brazilian Journal of Radiation Sciences contamination soil radionuclides |
| title | Distribuição das Concentrações de Atividade de 238U e 232Th em Amostras de Solo do Estado de Minas Gerais |
| title_full | Distribuição das Concentrações de Atividade de 238U e 232Th em Amostras de Solo do Estado de Minas Gerais |
| title_fullStr | Distribuição das Concentrações de Atividade de 238U e 232Th em Amostras de Solo do Estado de Minas Gerais |
| title_full_unstemmed | Distribuição das Concentrações de Atividade de 238U e 232Th em Amostras de Solo do Estado de Minas Gerais |
| title_short | Distribuição das Concentrações de Atividade de 238U e 232Th em Amostras de Solo do Estado de Minas Gerais |
| title_sort | distribuicao das concentracoes de atividade de 238u e 232th em amostras de solo do estado de minas gerais |
| topic | contamination soil radionuclides |
| url | https://bjrs.org.br/revista/index.php/REVISTA/article/view/208 |
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