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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
17/10/2016 |
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Data da última atualização: |
17/10/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROCHA, D. A. M.; TORRES, J. P. M.; REICHEL, K.; NOVOTNY, E. H.; ESTRELLA, L. F.; MEDEIROS, R. O.; PEREIRA NETTO, A. D. |
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Afiliação: |
DAYSE A. M. ROCHA, UFF; JOÃO P. M. TORRES, UFRJ; KLAUS REICHEL, IPEXCo; ETELVINO HENRIQUE NOVOTNY, CNPS; LEONARDO F. ESTRELLA, UFRJ; REBECA O. MEDEIROS, UFRJ; ANNIBAL D. PEREIRA NETTO, UFF. |
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Título: |
Determination of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in Brazilian cow milk. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Science of the Total Environment, v. 572, p. 177-184, Dec. 2016. |
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DOI: |
10.1016/j.scitotenv.2016.07.179 |
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Idioma: |
Inglês |
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Conteúdo: |
The determination of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in raw cow milks have never been reported in Brazil. Since the consumption of food of animal origin, including milk and dairy products, is the major source of human exposure to these compounds, this study aimed to establish the levels and profile of seven PCDDs and ten PCDFs in raw cow milk samples collected in eight Brazilian states which among the major milk producer states. Raw milk samples were collected in 34 different dairy cattle farms during the summer of 2013. All PCDD/Fs congeners were found at least in some of the 34 samples studied. The octa-chlorinated congeners (OCDD and OCDF) were ubiquitous and also present in high concentrations. The mean values of WHO-TEQ1998;2005 were respectively 1.66 and 1.36 pg TEQ g− 1 fat and samples taken in São Paulo showed the highest WHO-TEQ values (2.46 TEQ1998 g− 1 fat and 2.10 pg TEQ2005 g− 1 fat). Although all samples showed some contamination level, all values were below the limit established by European Union for total PCDD/Fs in cow milk (3 pg WHO-TEQ1998 g− 1 fat). Principal Component Analysis (PCA) showed that OCDD and OCDF were responsible for 73% and 20% of the total data variance, respectively and they presented an independent behavior, probably as a result of distinct origins. The use of TEQ as weights in the PCA, revealed the importance of the penta-chloro congeners and it was possible to identify sample distribution patterns probably associated with the main PeCDD and PeCDF. The importance of local sources to PCDD/Fs concentrations is still to be evaluated and determined. MenosThe determination of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in raw cow milks have never been reported in Brazil. Since the consumption of food of animal origin, including milk and dairy products, is the major source of human exposure to these compounds, this study aimed to establish the levels and profile of seven PCDDs and ten PCDFs in raw cow milk samples collected in eight Brazilian states which among the major milk producer states. Raw milk samples were collected in 34 different dairy cattle farms during the summer of 2013. All PCDD/Fs congeners were found at least in some of the 34 samples studied. The octa-chlorinated congeners (OCDD and OCDF) were ubiquitous and also present in high concentrations. The mean values of WHO-TEQ1998;2005 were respectively 1.66 and 1.36 pg TEQ g− 1 fat and samples taken in São Paulo showed the highest WHO-TEQ values (2.46 TEQ1998 g− 1 fat and 2.10 pg TEQ2005 g− 1 fat). Although all samples showed some contamination level, all values were below the limit established by European Union for total PCDD/Fs in cow milk (3 pg WHO-TEQ1998 g− 1 fat). Principal Component Analysis (PCA) showed that OCDD and OCDF were responsible for 73% and 20% of the total data variance, respectively and they presented an independent behavior, probably as a result of distinct origins. The use of TEQ as weights in the PCA, revealed the importance of the penta-chloro congeners and it was possible to i... Mostrar Tudo |
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Palavras-Chave: |
Contaminação de alimentos; Dibenzodioxinas policloradas; Dibenzofuranos; Leite de vaca cru; PCDD/Fs; Poluentes orgânicos persistentes. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02574naa a2200277 a 4500
001 2054729
005 2016-10-17
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1016/j.scitotenv.2016.07.179$2DOI
100 1 $aROCHA, D. A. M.
245 $aDetermination of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in Brazilian cow milk.$h[electronic resource]
260 $c2016
520 $aThe determination of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in raw cow milks have never been reported in Brazil. Since the consumption of food of animal origin, including milk and dairy products, is the major source of human exposure to these compounds, this study aimed to establish the levels and profile of seven PCDDs and ten PCDFs in raw cow milk samples collected in eight Brazilian states which among the major milk producer states. Raw milk samples were collected in 34 different dairy cattle farms during the summer of 2013. All PCDD/Fs congeners were found at least in some of the 34 samples studied. The octa-chlorinated congeners (OCDD and OCDF) were ubiquitous and also present in high concentrations. The mean values of WHO-TEQ1998;2005 were respectively 1.66 and 1.36 pg TEQ g− 1 fat and samples taken in São Paulo showed the highest WHO-TEQ values (2.46 TEQ1998 g− 1 fat and 2.10 pg TEQ2005 g− 1 fat). Although all samples showed some contamination level, all values were below the limit established by European Union for total PCDD/Fs in cow milk (3 pg WHO-TEQ1998 g− 1 fat). Principal Component Analysis (PCA) showed that OCDD and OCDF were responsible for 73% and 20% of the total data variance, respectively and they presented an independent behavior, probably as a result of distinct origins. The use of TEQ as weights in the PCA, revealed the importance of the penta-chloro congeners and it was possible to identify sample distribution patterns probably associated with the main PeCDD and PeCDF. The importance of local sources to PCDD/Fs concentrations is still to be evaluated and determined.
653 $aContaminação de alimentos
653 $aDibenzodioxinas policloradas
653 $aDibenzofuranos
653 $aLeite de vaca cru
653 $aPCDD/Fs
653 $aPoluentes orgânicos persistentes
700 1 $aTORRES, J. P. M.
700 1 $aREICHEL, K.
700 1 $aNOVOTNY, E. H.
700 1 $aESTRELLA, L. F.
700 1 $aMEDEIROS, R. O.
700 1 $aPEREIRA NETTO, A. D.
773 $tScience of the Total Environment$gv. 572, p. 177-184, Dec. 2016.
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| 16. |  | DAL PICIO, M.; ANDRIOLO, J. L.; CARDOSO, F. L.; LENER, M. A.; SOUZA, J. M. de. Defoliation of strawberry mother plants for the production of runner tips. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 49, n. 7, p. 515-520, jul. 2014. Título em português: Desfolha de plantas matrizes de morangueiro para a produção de pontas de estolão.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 18. | | SOUZA, J. M. de; ALVES, R. C.; FERNANDES, F. R.; ZANDONADI, D. B. Efeito do lixiviado de vermicomposto no potencial de enraizamento de mudas de batata-doce. In: JORNADA CIENTÍFICA DA EMBRAPA HORTALIÇAS, 2., 2012, Brasília, DF. [Resumos...]. Brasília, DF: Embrapa Hortaliças, 2012. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
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