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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: |
21/03/2014 |
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Data da última atualização: |
19/07/2017 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
CASTRO, V. L. S. S. de. |
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Afiliação: |
VERA LUCIA SCHERHOLZ S DE CASTRO, CNPMA. |
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Título: |
Endocrine disruptors. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: JORGENSEN, S. E. (Ed.). Encyclopedia of environmental management. New York: Taylor and Francis, 2013. v. 1, p. 643-655. |
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Idioma: |
Inglês |
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Conteúdo: |
Many pollutants are known to adversely affect development and physiology by interfering with normal endocrine functions. Among them, numerous pesticides are described as able to change the endocrine system, since the differentiation and development of the reproductive system are dependent of the action of hormones. Endocrine-disrupter chemicals (EDCs) are substances in the environment, food, and consumer products that interfere with hormone biosynthesis, metabolism, or action, resulting in a deviation from normal homeostatic control or reproduction. Exposure to an EDC may have different consequences for an adult compared with a developing fetus or infant. The developing organism interaction with these chemicals may lead to the development of a disease or dysfunction later in life. Results from animal models and epidemiological studies converge to implicate them as a significant concern to public health since their mechanisms involve different pathways that are present in wildlife and humans. Furthermore, effects of different classes of EDCs may be additive or even synergistic, but there are limited data on the interactions between them. An increased understanding of the potential human and environmental health risks of exposure to single and mixtures of EDCs as well as the efficient removal process of EDCs from water are important but remain understudied. This entry presents an overview of the environmental EDC contamination and its possible effects on different organisms. However, it is beyond the scope of this entry to describe all the possible disruption events of the endocrine system. MenosMany pollutants are known to adversely affect development and physiology by interfering with normal endocrine functions. Among them, numerous pesticides are described as able to change the endocrine system, since the differentiation and development of the reproductive system are dependent of the action of hormones. Endocrine-disrupter chemicals (EDCs) are substances in the environment, food, and consumer products that interfere with hormone biosynthesis, metabolism, or action, resulting in a deviation from normal homeostatic control or reproduction. Exposure to an EDC may have different consequences for an adult compared with a developing fetus or infant. The developing organism interaction with these chemicals may lead to the development of a disease or dysfunction later in life. Results from animal models and epidemiological studies converge to implicate them as a significant concern to public health since their mechanisms involve different pathways that are present in wildlife and humans. Furthermore, effects of different classes of EDCs may be additive or even synergistic, but there are limited data on the interactions between them. An increased understanding of the potential human and environmental health risks of exposure to single and mixtures of EDCs as well as the efficient removal process of EDCs from water are important but remain understudied. This entry presents an overview of the environmental EDC contamination and its possible effects on different organisms. H... Mostrar Tudo |
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Palavras-Chave: |
Sistema endócrino. |
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Thesagro: |
Agrotóxico; Toxidez. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02103naa a2200157 a 4500
001 1983018
005 2017-07-19
008 2013 bl uuuu u00u1 u #d
100 1 $aCASTRO, V. L. S. S. de
245 $aEndocrine disruptors.$h[electronic resource]
260 $c2013
520 $aMany pollutants are known to adversely affect development and physiology by interfering with normal endocrine functions. Among them, numerous pesticides are described as able to change the endocrine system, since the differentiation and development of the reproductive system are dependent of the action of hormones. Endocrine-disrupter chemicals (EDCs) are substances in the environment, food, and consumer products that interfere with hormone biosynthesis, metabolism, or action, resulting in a deviation from normal homeostatic control or reproduction. Exposure to an EDC may have different consequences for an adult compared with a developing fetus or infant. The developing organism interaction with these chemicals may lead to the development of a disease or dysfunction later in life. Results from animal models and epidemiological studies converge to implicate them as a significant concern to public health since their mechanisms involve different pathways that are present in wildlife and humans. Furthermore, effects of different classes of EDCs may be additive or even synergistic, but there are limited data on the interactions between them. An increased understanding of the potential human and environmental health risks of exposure to single and mixtures of EDCs as well as the efficient removal process of EDCs from water are important but remain understudied. This entry presents an overview of the environmental EDC contamination and its possible effects on different organisms. However, it is beyond the scope of this entry to describe all the possible disruption events of the endocrine system.
650 $aAgrotóxico
650 $aToxidez
653 $aSistema endócrino
773 $tIn: JORGENSEN, S. E. (Ed.). Encyclopedia of environmental management. New York: Taylor and Francis, 2013.$gv. 1, p. 643-655.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Cutter |
Registro |
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URL |
Voltar
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
23/11/2023 |
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Data da última atualização: |
15/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
VILLELA, J. M.; ANACHE, J. A. A.; WATANABE, A. M.; FLANAGAN, D. C.; CRESTANA, S. |
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Afiliação: |
University of Sao Paulo (USP); Federal University of Mato Grosso Do Sul; University of Sao Paulo (USP); USDA-Agricultural Research Service, National Soil Erosion Research Laboratory, 275 S. Russell St., West Lafayette, IN, 47907, USA; SILVIO CRESTANA, CNPDIA. |
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Título: |
Performance evaluation of a water erosion tracer using plot-scale experiments and process-based modeling. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
International Soil and Water Conservation Research. v. 11, 2023. |
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Páginas: |
622 - 623 |
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ISSN: |
2095-6339 |
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DOI: |
https://doi.org/10.1016/j.iswcr.2023.05.003 |
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Idioma: |
Inglês |
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Conteúdo: |
abstract Socioeconomic and environmental losses caused by water erosion have highlighted the importance of quantifying and understanding the dynamics of soil redistribution in the landscape to develop effective soil management practices. Several methods are applied to estimate erosion/deposition rates and identify sources of sediments, among them, the one that uses rare earth elements (REE) as a tracer stands out. However, an alternative not yet explored that can benefit the accuracy of the estimates provided by the method is using a tracer containing a chemical signature composed of more than one REE. The present study aimed to evaluate the performance of a new water erosion tracer based on montmorillonite labeled with rare earth elements (La40-MMT). The innovative aspects of this La40-MMT tracer include its highly stable multi-chemical signature (Nd3þ, La3þ, and Pr3þ), which enhances tracer detection in the environment, and its low production cost due to the use of an industrial residue in the synthesis process. The tracer was evaluated for a typical soil of the Cerrado biome, using a natural rainfall field-scale plot - NRFP (5 m 20 m) and a physical predictive erosion model (WEPP). The results showed that the La40-MMT tracer could be used to estimate erosion/deposition rates, with agreement between the values observed with the tracer and the WEPP model. Thus, this study confirmed the great potential of La40-MMT as a tool to identify patterns of soil redistribution at the field scale and aid in the validation of erosion models. © 2023 International Research and Training Center on Erosion and Sedimentation, China Water and Power Press, and China Institute of Water Resources and Hydropower Research. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BYNC-ND license. Menosabstract Socioeconomic and environmental losses caused by water erosion have highlighted the importance of quantifying and understanding the dynamics of soil redistribution in the landscape to develop effective soil management practices. Several methods are applied to estimate erosion/deposition rates and identify sources of sediments, among them, the one that uses rare earth elements (REE) as a tracer stands out. However, an alternative not yet explored that can benefit the accuracy of the estimates provided by the method is using a tracer containing a chemical signature composed of more than one REE. The present study aimed to evaluate the performance of a new water erosion tracer based on montmorillonite labeled with rare earth elements (La40-MMT). The innovative aspects of this La40-MMT tracer include its highly stable multi-chemical signature (Nd3þ, La3þ, and Pr3þ), which enhances tracer detection in the environment, and its low production cost due to the use of an industrial residue in the synthesis process. The tracer was evaluated for a typical soil of the Cerrado biome, using a natural rainfall field-scale plot - NRFP (5 m 20 m) and a physical predictive erosion model (WEPP). The results showed that the La40-MMT tracer could be used to estimate erosion/deposition rates, with agreement between the values observed with the tracer and the WEPP model. Thus, this study confirmed the great potential of La40-MMT as a tool to identify patterns of soil redistribution at the ... Mostrar Tudo |
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Palavras-Chave: |
Deposition; Sediment source; Tracer; WEPP Model. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158662/1/P-Performance-evaluation-of-a-water-erosion-tracer-using-plot-scale.pdf
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Marc: |
LEADER 02642naa a2200253 a 4500
001 2158662
005 2024-01-15
008 2023 bl uuuu u00u1 u #d
022 $a2095-6339
024 7 $ahttps://doi.org/10.1016/j.iswcr.2023.05.003$2DOI
100 1 $aVILLELA, J. M.
245 $aPerformance evaluation of a water erosion tracer using plot-scale experiments and process-based modeling.$h[electronic resource]
260 $c2023
300 $a622 - 623
520 $aabstract Socioeconomic and environmental losses caused by water erosion have highlighted the importance of quantifying and understanding the dynamics of soil redistribution in the landscape to develop effective soil management practices. Several methods are applied to estimate erosion/deposition rates and identify sources of sediments, among them, the one that uses rare earth elements (REE) as a tracer stands out. However, an alternative not yet explored that can benefit the accuracy of the estimates provided by the method is using a tracer containing a chemical signature composed of more than one REE. The present study aimed to evaluate the performance of a new water erosion tracer based on montmorillonite labeled with rare earth elements (La40-MMT). The innovative aspects of this La40-MMT tracer include its highly stable multi-chemical signature (Nd3þ, La3þ, and Pr3þ), which enhances tracer detection in the environment, and its low production cost due to the use of an industrial residue in the synthesis process. The tracer was evaluated for a typical soil of the Cerrado biome, using a natural rainfall field-scale plot - NRFP (5 m 20 m) and a physical predictive erosion model (WEPP). The results showed that the La40-MMT tracer could be used to estimate erosion/deposition rates, with agreement between the values observed with the tracer and the WEPP model. Thus, this study confirmed the great potential of La40-MMT as a tool to identify patterns of soil redistribution at the field scale and aid in the validation of erosion models. © 2023 International Research and Training Center on Erosion and Sedimentation, China Water and Power Press, and China Institute of Water Resources and Hydropower Research. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BYNC-ND license.
653 $aDeposition
653 $aSediment source
653 $aTracer
653 $aWEPP Model
700 1 $aANACHE, J. A. A.
700 1 $aWATANABE, A. M.
700 1 $aFLANAGAN, D. C.
700 1 $aCRESTANA, S.
773 $tInternational Soil and Water Conservation Research.$gv. 11, 2023.
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