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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
22/12/2008 |
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Data da última atualização: |
15/10/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DORES, E. F. G. C.; SPADOTTO, C. A.; WEBER, O. L. S.; CARBO, L.; VECCHIATO, A. B.; PINTO, A. A. |
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Afiliação: |
Eliana F. G. C.Dores, UFMT; CLAUDIO APARECIDO SPADOTTO, SGTE; Oscarlina L. S.Weber, UFMT; Leandro Carbo, UNESP-Campus de Araraquara; Antonio B. Vecchiato, UFMT; Alicio A. Pinto, UFMT. |
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Título: |
Environmental behaviour of metolachlor and diuron in a tropical soil in the Central Region of Brazil. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Water, Air and Soil Pollution, v. 197, p. 175-183, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
The environmental behaviour of metolachlor and diuron was studied in the Central-western region of Brazil, by means of a field study where six experimental plots were installed. The soil was classified as a Latosol, and the soil horizons were characterized. Sorption of metolachlor and diuron was evaluated in laboratory batch experiments. Metolachlor and diuron were applied to the experimental plots on uncultivated soil in October 2003. From this date to March 2004, the following processes were studied: leaching, runoff and dissipation in top soil. K oc of metolachlor varied from 179 to 264 mL g-1 in the soil horizons. K oc of diuron in the Ap horizon was 917 mL g-1, decreasing significantly in the deeper horizons. Field dissipation half-lives of metolachlor and diuron were 18 and 15 days, respectively. In percolated water, metolachlor was detected in concentrations ranging from 0.02 to 2.84 ?g L-1. In runoff water and sediment, metolachlor was detected in decreasing concentrations throughout the period of study. Losses of 0.02% and 0.54% of the applied amount by leaching and runoff, respectively, were observed confirming the high mobility of this herbicide in the environment. In percolated water, diuron was detected with low frequency but in relatively high concentrations (up to 6.29 ?g L-1). In runoff water and soil, diuron was detected in decreasing concentrations until 70 days after application, totalizing 13.9% during the whole sampling period. These results show the importance of practices to reduce runoff avoiding surface water contamination by these pesticides, particularly diuron. MenosThe environmental behaviour of metolachlor and diuron was studied in the Central-western region of Brazil, by means of a field study where six experimental plots were installed. The soil was classified as a Latosol, and the soil horizons were characterized. Sorption of metolachlor and diuron was evaluated in laboratory batch experiments. Metolachlor and diuron were applied to the experimental plots on uncultivated soil in October 2003. From this date to March 2004, the following processes were studied: leaching, runoff and dissipation in top soil. K oc of metolachlor varied from 179 to 264 mL g-1 in the soil horizons. K oc of diuron in the Ap horizon was 917 mL g-1, decreasing significantly in the deeper horizons. Field dissipation half-lives of metolachlor and diuron were 18 and 15 days, respectively. In percolated water, metolachlor was detected in concentrations ranging from 0.02 to 2.84 ?g L-1. In runoff water and sediment, metolachlor was detected in decreasing concentrations throughout the period of study. Losses of 0.02% and 0.54% of the applied amount by leaching and runoff, respectively, were observed confirming the high mobility of this herbicide in the environment. In percolated water, diuron was detected with low frequency but in relatively high concentrations (up to 6.29 ?g L-1). In runoff water and soil, diuron was detected in decreasing concentrations until 70 days after application, totalizing 13.9% during the whole sampling period. These results show the imp... Mostrar Tudo |
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Thesagro: |
Agrotóxico; Água; Poluição Ambiental. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 02263naa a2200217 a 4500
001 1015592
005 2024-10-15
008 2008 bl uuuu u00u1 u #d
100 1 $aDORES, E. F. G. C.
245 $aEnvironmental behaviour of metolachlor and diuron in a tropical soil in the Central Region of Brazil.$h[electronic resource]
260 $c2008
520 $aThe environmental behaviour of metolachlor and diuron was studied in the Central-western region of Brazil, by means of a field study where six experimental plots were installed. The soil was classified as a Latosol, and the soil horizons were characterized. Sorption of metolachlor and diuron was evaluated in laboratory batch experiments. Metolachlor and diuron were applied to the experimental plots on uncultivated soil in October 2003. From this date to March 2004, the following processes were studied: leaching, runoff and dissipation in top soil. K oc of metolachlor varied from 179 to 264 mL g-1 in the soil horizons. K oc of diuron in the Ap horizon was 917 mL g-1, decreasing significantly in the deeper horizons. Field dissipation half-lives of metolachlor and diuron were 18 and 15 days, respectively. In percolated water, metolachlor was detected in concentrations ranging from 0.02 to 2.84 ?g L-1. In runoff water and sediment, metolachlor was detected in decreasing concentrations throughout the period of study. Losses of 0.02% and 0.54% of the applied amount by leaching and runoff, respectively, were observed confirming the high mobility of this herbicide in the environment. In percolated water, diuron was detected with low frequency but in relatively high concentrations (up to 6.29 ?g L-1). In runoff water and soil, diuron was detected in decreasing concentrations until 70 days after application, totalizing 13.9% during the whole sampling period. These results show the importance of practices to reduce runoff avoiding surface water contamination by these pesticides, particularly diuron.
650 $aAgrotóxico
650 $aÁgua
650 $aPoluição Ambiental
700 1 $aSPADOTTO, C. A.
700 1 $aWEBER, O. L. S.
700 1 $aCARBO, L.
700 1 $aVECCHIATO, A. B.
700 1 $aPINTO, A. A.
773 $tWater, Air and Soil Pollution$gv. 197, p. 175-183, 2009.
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Embrapa Meio Ambiente (CNPMA) |
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| 3. |  | ANJOS, M. R.; TEIXEIRA, A. S.; CABRAL, P. M. S.; FERREIRA, L. F.; CASTRO, I. M. Estudo da recuperação de aflatoxinas em milho por CLAE/DF com pré-derivatização por TFA. In: SIMPÓSIO LATINO AMERICANO DE CIÊNCIA DE ALIMENTOS, 8., 2009, Campinas. Ciência de alimentos no mundo globalizado: novos desafios, novas perspectivas. Campinas: Unicamp, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 4. | | ANJOS, M. R.; SANTOS, S. N.; MORAIS, C. T.; TEIXEIRA, A. S.; CASTRO, I. M. Avaliação de aflatoxina M1 em leite em pó integral e desnatado por CLAE/DF. In: SIMPÓSIO BRASILEIRO DE CROMATOGRAFIA E TÉCNICAS AFINS, 4., 2010, Campos do Jordão. Livro de resumos. São Carlos, SP: Instituto Internacional de Cromatografia, 2010. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
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| 7. | | ANJOS, M. R.; SANTOS, S. N.; MORAIS, C. T.; TEIXEIRA, A. S.; CASTRO, I. M. Determinação de aflatoxina M1 em leite bubalino por CLAE/DF. In: SIMPÓSIO BRASILEIRO DE CROMATOGRAFIA E TÉCNICAS AFINS, 4., 2010, Campos do Jordão. Livro de resumos. São Carlos, SP: Instituto Internacional de Cromatografia, 2010. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 8. | | TEIXEIRA, A. S.; CASTRO, A. C. R. de; CASTRO, C. S. P. de; LINHARES, H. P. Implementação de requisitos corporativos de qualidade no Banco Ativo de Germoplasma do Cajueiro da Embrapa. Revista RG News, v. 4, n. 3, p. 433, 2018 Resumos apresentado no CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 5., 2018, Fortaleza. Anais... Fortaleza: Sociedade Brasileira de Recursos Genéticos, 2018.| Tipo: Resumo em Anais de Congresso |
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| 12. | | SOUZA, M. L. M.; FREITAS-SILVA, O.; TEIXEIRA, A. S.; CASTRO, I. M.; TORREZAN, R.; SOUZA, B. M.; DEZOTTI, M. Aflatoxins degradation by aqueous ozone in different matrices. In: INTERNATIONAL NONTHERMAL FOOD PROCESSING WORKSHOP, 2013, Florianópolis. Research and innovation towards competitiveness: workshop. Florianópolis: FIESC/SENAI, 2013.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 13. | | BEZERRA, F. M. L.; FREITAS, C. A. S.; COSTA, C. A. G.; TEIXEIRA, A. S.; MONTENEGRO, A. A. T. Effective depth of the root system of passion fruit irrigated. In: INTERNATIONAL CONFERENCE OF AGRICULTURAL ENGENEERING, CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 37., INTERNATIONAL LIVESTOCK ENVIRONMENT SYMPOSIUM, 8., 2008, Foz do Iguaçu. Proceedings... Jaboticabal: SBEA, 2008.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 15. | | CONTE, A. J.; TEIXEIRA, A. S.; FIGUEIRÊDO, A. V. de; VITTI, D. M. S. S.; SILVA FILHO, J. C. da. Efeito da fitase na biodisponibilidade do fósforo do farelo de arroz em frangos de corte. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 37, n. 4, p. 547-552, abr. 2002 Título em inglês: Effect of phytase on the bioavailability of phosphorus of rice bran in broilers chickens.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 19. | | ANJOS, M. R.; TEIXEIRA, A. S.; ANDRADE, P. D.; FERREIRA, L. F.; SOUZA, M. L. M.; CASTRO, I. M. Separação de interferentes na análise de patulina por CLAE/UV-DAD. In: SIMPÓSIO EM CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 2.; CONGRESSO DO INSTITUTO NACIONAL DE FRUTOS TROPICAIS, 1., 2010, Aracaju. Avanços em tecnologia de alimentos: anais. Aracaju: Universidade Federal de Sergipe, 2010. 1 CD-ROM. p. 1444-1447.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Registros recuperados : 33 | |
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