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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: |
23/11/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PARAIBA, L. C.; KATAGUIRI, K. |
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Afiliação: |
LOURIVAL COSTA PARAIBA, CNPMA; Karen Kataguiri, Faculdade de Engenharia Ambiental-UNESP Sorocaba. |
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Título: |
Model approach for estimating potato pesticide bioconcentration factor. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Chemosphere, v. 73, p.1247-1252, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
e presented a model that estimates the bioconcentration factor (BCF) of pesticides in potatoes supposing that the pesticide in the soil solution is absorbed by the potato by passive diffusion, following Fick?s second law. The pesticides in the model are nonionic organic substances, traditionally used in potato crops that degrade in the soil according to a first-order kinetic equation. This presents an expression that relates BCF with the pesticide elimination rate by the potato, with the pesticide accumulation rate within the potato, with the rate of growth of the potato and with the pesticide degradation rate in the soil. BCF was estimated supposing steady state equilibrium of the quotient between the pesticide concentration in the potato and the pesticide concentration in the soil solution. It is suggested that a negative correlation exists between the pesticide BCF and the soil sorption partition coefficient. The model was built based on the work of Trapp et al. [Trapp, S., Cammarano, A., Capri, E., Reichenberg, F., Mayer, P., 2007. Diffusion of PAH in potato and carrot slices and application for a potato model. Environ. Sci. Technol. 41 (9), 3103? 3108], in which an expression to calculate the diffusivity of persistent organic substances in potatoes is presented. The model consists in adding to the expression of Trapp et al. [Trapp, S., Cammarano, A., Capri, E., Reichenberg, F., Mayer, P., 2007. Diffusion of PAH in potato and carrot slices and application for a potato model. Environ. Sci. Technol. 41 (9), 3103?3108] the hypothesis that the pesticide degrades in the soil. The value of BCF suggests which pesticides should be monitored in potatoes. Menose presented a model that estimates the bioconcentration factor (BCF) of pesticides in potatoes supposing that the pesticide in the soil solution is absorbed by the potato by passive diffusion, following Fick?s second law. The pesticides in the model are nonionic organic substances, traditionally used in potato crops that degrade in the soil according to a first-order kinetic equation. This presents an expression that relates BCF with the pesticide elimination rate by the potato, with the pesticide accumulation rate within the potato, with the rate of growth of the potato and with the pesticide degradation rate in the soil. BCF was estimated supposing steady state equilibrium of the quotient between the pesticide concentration in the potato and the pesticide concentration in the soil solution. It is suggested that a negative correlation exists between the pesticide BCF and the soil sorption partition coefficient. The model was built based on the work of Trapp et al. [Trapp, S., Cammarano, A., Capri, E., Reichenberg, F., Mayer, P., 2007. Diffusion of PAH in potato and carrot slices and application for a potato model. Environ. Sci. Technol. 41 (9), 3103? 3108], in which an expression to calculate the diffusivity of persistent organic substances in potatoes is presented. The model consists in adding to the expression of Trapp et al. [Trapp, S., Cammarano, A., Capri, E., Reichenberg, F., Mayer, P., 2007. Diffusion of PAH in potato and carrot slices and application for a potato mo... Mostrar Tudo |
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Palavras-Chave: |
Modelagem matemática. |
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Thesagro: |
Agrotóxico. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/150408/1/2008AP-13.pdf
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Marc: |
LEADER 02130naa a2200157 a 4500
001 1015596
005 2016-11-23
008 2008 bl uuuu u00u1 u #d
100 1 $aPARAIBA, L. C.
245 $aModel approach for estimating potato pesticide bioconcentration factor.$h[electronic resource]
260 $c2008
520 $ae presented a model that estimates the bioconcentration factor (BCF) of pesticides in potatoes supposing that the pesticide in the soil solution is absorbed by the potato by passive diffusion, following Fick?s second law. The pesticides in the model are nonionic organic substances, traditionally used in potato crops that degrade in the soil according to a first-order kinetic equation. This presents an expression that relates BCF with the pesticide elimination rate by the potato, with the pesticide accumulation rate within the potato, with the rate of growth of the potato and with the pesticide degradation rate in the soil. BCF was estimated supposing steady state equilibrium of the quotient between the pesticide concentration in the potato and the pesticide concentration in the soil solution. It is suggested that a negative correlation exists between the pesticide BCF and the soil sorption partition coefficient. The model was built based on the work of Trapp et al. [Trapp, S., Cammarano, A., Capri, E., Reichenberg, F., Mayer, P., 2007. Diffusion of PAH in potato and carrot slices and application for a potato model. Environ. Sci. Technol. 41 (9), 3103? 3108], in which an expression to calculate the diffusivity of persistent organic substances in potatoes is presented. The model consists in adding to the expression of Trapp et al. [Trapp, S., Cammarano, A., Capri, E., Reichenberg, F., Mayer, P., 2007. Diffusion of PAH in potato and carrot slices and application for a potato model. Environ. Sci. Technol. 41 (9), 3103?3108] the hypothesis that the pesticide degrades in the soil. The value of BCF suggests which pesticides should be monitored in potatoes.
650 $aAgrotóxico
653 $aModelagem matemática
700 1 $aKATAGUIRI, K.
773 $tChemosphere$gv. 73, p.1247-1252, 2008.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Origem |
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Classificação |
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Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
21/06/2005 |
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Data da última atualização: |
22/05/2018 |
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Autoria: |
BRIENZA JUNIOR, S.; DENICH, M.; FÖLSTER, H.; VLEK, P. L. G. |
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Afiliação: |
SILVIO BRIENZA JUNIOR, CPATU; Universität Bonn; Gerge-August Universität Göttingen; Universität Bonn. |
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Título: |
Fallow vegetation enrichment with leguminous trees in the Eastern Amazon of Brazil: trees performance. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS - ARCHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings. Geesthacht: GKSS, 2002. |
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Páginas: |
p. 336. |
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Idioma: |
Inglês |
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Notas: |
Anexo 1 CD-ROM nº 0084, completo. Publicado também em GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS: ARCHIEMENTS AND PROPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Program and abstracts. Hamburg: SHIFT: MADAM: WAVES, 2000. p. 266. |
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Palavras-Chave: |
Capoeira enriquecida. |
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Thesagro: |
Leguminosa; Manejo do Solo; Sistema de Cultivo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/177422/1/workshop2000-ilovepdf-compressed-14.pdf
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Marc: |
LEADER 00952nam a2200205 a 4500
001 1406390
005 2018-05-22
008 2002 bl uuuu u00u1 u #d
100 1 $aBRIENZA JUNIOR, S.
245 $aFallow vegetation enrichment with leguminous trees in the Eastern Amazon of Brazil$btrees performance.
260 $aIn: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS - ARCHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings. Geesthacht: GKSS$c2002
300 $ap. 336.
500 $aAnexo 1 CD-ROM nº 0084, completo. Publicado também em GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS: ARCHIEMENTS AND PROPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Program and abstracts. Hamburg: SHIFT: MADAM: WAVES, 2000. p. 266.
650 $aLeguminosa
650 $aManejo do Solo
650 $aSistema de Cultivo
653 $aCapoeira enriquecida
700 1 $aDENICH, M.
700 1 $aFÖLSTER, H.
700 1 $aVLEK, P. L. G.
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Embrapa Amazônia Oriental (CPATU) |
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