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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: |
03/08/2018 |
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Data da última atualização: |
03/08/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CASTRO, V. L. S. S. de; CLEMENTE, Z.; JONSSON, C. M.; SILVA, M. S. G. M. e; VALLIM, J. H.; MEDEIROS, A. M. Z. de; MARTINEZ, D. S. T. |
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Afiliação: |
VERA LUCIA SCHERHOLZ S DE CASTRO, CNPMA; ZAIRA CLEMENTE, CNPEM; CLAUDIO MARTIN JONSSON, CNPMA; MARIANA SILVEIRA GUERRA MOURA E SILVA, CNPMA; JOSE HENRIQUE VALLIM, CNPMA; ALINE MARIA ZIGIOTTO DE MEDEIROS, CENA-USP; DIEGO STEFANI TEODORO MARTINEZ, CNPEM. |
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Título: |
Nanoecotoxicity assessment of graphene oxide and its relationship with humic acid. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Environmental Toxicology and Chemistry, v. 37, n. 7, p. 1998-2012, 2018. |
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DOI: |
https://doi.org/10.1002/etc.4145 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The risk assessment of nanomaterials is essential for regulatory purposes and for sustainable nanotechnological development. Although the application of graphene oxide has been widely exploited, its environmental risk is not well understood because several environmental conditions can affect its behavior and toxicity. In the present study, the graphene oxide effect from aquatic ecosystems was assessed considering the interaction with humic acid on 9 organisms: Raphidocelis subcapitata (green algae), Lemna minor (aquatic plant), Lactuca sativa (lettuce), Daphnia magna (planktonic microcrustacean), Artemia salina (brine shrimp), Chironomus sancticaroli (Chironomidae), Hydra attenuata (freshwater polyp), and Caenorhabditis elegans and Panagrolaimus sp. (nematodes). The no-observed-effect concentration (NOEC) was calculated for each organism. The different criteria used to calculate NOEC values were transformed and plotted as a log-logistic function. The hypothetical 5 to 50% hazardous concentration values were, respectively, 0.023 (0.005-0.056) and 0.10 (0.031-0.31) mg L-1 for graphene oxide with and without humic acid, respectively. The safest scenario associated with the predicted no-effect concentration values for graphene oxide in the aquatic compartment were estimated as 20 to 100µgL-1 (in the absence of humic acid) and 5 to 23µgL-1 (in the presence of humic acid). Finally, the present approach contributed to the risk assessment of graphene oxide-based nanomaterials and the establishment of nano-regulations. Environ Toxicol Chem 2018;37:1998-2012. MenosAbstract: The risk assessment of nanomaterials is essential for regulatory purposes and for sustainable nanotechnological development. Although the application of graphene oxide has been widely exploited, its environmental risk is not well understood because several environmental conditions can affect its behavior and toxicity. In the present study, the graphene oxide effect from aquatic ecosystems was assessed considering the interaction with humic acid on 9 organisms: Raphidocelis subcapitata (green algae), Lemna minor (aquatic plant), Lactuca sativa (lettuce), Daphnia magna (planktonic microcrustacean), Artemia salina (brine shrimp), Chironomus sancticaroli (Chironomidae), Hydra attenuata (freshwater polyp), and Caenorhabditis elegans and Panagrolaimus sp. (nematodes). The no-observed-effect concentration (NOEC) was calculated for each organism. The different criteria used to calculate NOEC values were transformed and plotted as a log-logistic function. The hypothetical 5 to 50% hazardous concentration values were, respectively, 0.023 (0.005-0.056) and 0.10 (0.031-0.31) mg L-1 for graphene oxide with and without humic acid, respectively. The safest scenario associated with the predicted no-effect concentration values for graphene oxide in the aquatic compartment were estimated as 20 to 100µgL-1 (in the absence of humic acid) and 5 to 23µgL-1 (in the presence of humic acid). Finally, the present approach contributed to the risk assessment of graphene oxide-based nanomateri... Mostrar Tudo |
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Palavras-Chave: |
Ecotoxicity; Nanotecnologia; Óxido de grafeno; Predicted no-effect concentration. |
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Thesagro: |
Composto de Carbono; Composto Químico; Impacto Ambiental; Meio Ambiente Aquático. |
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Thesaurus Nal: |
Ecotoxicology; Graphene oxide; Humic acids; Nanomaterials; Nanotechnology; Risk assessment. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02720naa a2200373 a 4500
001 2093879
005 2018-08-03
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1002/etc.4145$2DOI
100 1 $aCASTRO, V. L. S. S. de
245 $aNanoecotoxicity assessment of graphene oxide and its relationship with humic acid.$h[electronic resource]
260 $c2018
520 $aAbstract: The risk assessment of nanomaterials is essential for regulatory purposes and for sustainable nanotechnological development. Although the application of graphene oxide has been widely exploited, its environmental risk is not well understood because several environmental conditions can affect its behavior and toxicity. In the present study, the graphene oxide effect from aquatic ecosystems was assessed considering the interaction with humic acid on 9 organisms: Raphidocelis subcapitata (green algae), Lemna minor (aquatic plant), Lactuca sativa (lettuce), Daphnia magna (planktonic microcrustacean), Artemia salina (brine shrimp), Chironomus sancticaroli (Chironomidae), Hydra attenuata (freshwater polyp), and Caenorhabditis elegans and Panagrolaimus sp. (nematodes). The no-observed-effect concentration (NOEC) was calculated for each organism. The different criteria used to calculate NOEC values were transformed and plotted as a log-logistic function. The hypothetical 5 to 50% hazardous concentration values were, respectively, 0.023 (0.005-0.056) and 0.10 (0.031-0.31) mg L-1 for graphene oxide with and without humic acid, respectively. The safest scenario associated with the predicted no-effect concentration values for graphene oxide in the aquatic compartment were estimated as 20 to 100µgL-1 (in the absence of humic acid) and 5 to 23µgL-1 (in the presence of humic acid). Finally, the present approach contributed to the risk assessment of graphene oxide-based nanomaterials and the establishment of nano-regulations. Environ Toxicol Chem 2018;37:1998-2012.
650 $aEcotoxicology
650 $aGraphene oxide
650 $aHumic acids
650 $aNanomaterials
650 $aNanotechnology
650 $aRisk assessment
650 $aComposto de Carbono
650 $aComposto Químico
650 $aImpacto Ambiental
650 $aMeio Ambiente Aquático
653 $aEcotoxicity
653 $aNanotecnologia
653 $aÓxido de grafeno
653 $aPredicted no-effect concentration
700 1 $aCLEMENTE, Z.
700 1 $aJONSSON, C. M.
700 1 $aSILVA, M. S. G. M. e
700 1 $aVALLIM, J. H.
700 1 $aMEDEIROS, A. M. Z. de
700 1 $aMARTINEZ, D. S. T.
773 $tEnvironmental Toxicology and Chemistry$gv. 37, n. 7, p. 1998-2012, 2018.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
17/11/1997 |
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Data da última atualização: |
30/03/2023 |
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Autoria: |
PEREIRA, R. de C. A.; VALENTIM, J. F.; SA, C. P. de; SALES, F. de. |
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Afiliação: |
RITA DE CASSIA ALVES PEREIRA, CPAF-AC; JUDSON FERREIRA VALENTIM, CPAF-Acre; CLAUDENOR PINHO DE SA, CPAF-Acre; FRANCISCO DE SALES, CPAF-Acre. |
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Título: |
Efeito da cobertura do solo com amendoim forrageiro (Arachis pintoi e Arachis glabrata) na produtividade de café no Acre. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Rio Branco, AC: Embrapa CPAF-AC, 1997. |
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Páginas: |
5 p. |
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Série: |
(Embrapa CPAF-AC. Pesquisa em andamento, 96). |
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ISSN: |
0101-6075 |
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Idioma: |
Português |
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Conteúdo: |
A Embrapa Acre vem realizando um estudo com o objetivo de avaliar a viabilidade técnica e econômica da utilização do amendoim forrageiro com cobertura do solo em cultivo de café. O experimento foi instalado no Campo Experimental da Embrapa Acre. |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Amendoim forrageiro; Cacahuetes forrajeros; Cobertura; Cultivos de cobertura; Embrapa Acre; Forage peanut; Granjas de demostración; Leguminosas forrajeras; Rendimiento del forraje; Rio Branco (AC); Western Amazon. |
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Thesagro: |
Café; Café Catuaí; Campo Experimental; Cobertura do Solo; Coffea Arábica; Leguminosa Forrageira; Produtividade. |
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Thesaurus NAL: |
Arachis glabrata; Arachis pintoi; Cover crops; Demonstration farms; Forage yield. |
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Categoria do assunto: |
--
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAF-AC/1303/1/pesquisa96.pdf
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Marc: |
LEADER 01669nam a2200493 a 4500
001 1492581
005 2023-03-30
008 1997 bl uuuu u0uu1 u #d
022 $a0101-6075
100 1 $aPEREIRA, R. de C. A.
245 $aEfeito da cobertura do solo com amendoim forrageiro (Arachis pintoi e Arachis glabrata) na produtividade de café no Acre.
260 $aRio Branco, AC: Embrapa CPAF-AC$c1997
300 $a5 p.
490 $a(Embrapa CPAF-AC. Pesquisa em andamento, 96).
520 $aA Embrapa Acre vem realizando um estudo com o objetivo de avaliar a viabilidade técnica e econômica da utilização do amendoim forrageiro com cobertura do solo em cultivo de café. O experimento foi instalado no Campo Experimental da Embrapa Acre.
650 $aArachis glabrata
650 $aArachis pintoi
650 $aCover crops
650 $aDemonstration farms
650 $aForage yield
650 $aCafé
650 $aCafé Catuaí
650 $aCampo Experimental
650 $aCobertura do Solo
650 $aCoffea Arábica
650 $aLeguminosa Forrageira
650 $aProdutividade
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aAmendoim forrageiro
653 $aCacahuetes forrajeros
653 $aCobertura
653 $aCultivos de cobertura
653 $aEmbrapa Acre
653 $aForage peanut
653 $aGranjas de demostración
653 $aLeguminosas forrajeras
653 $aRendimiento del forraje
653 $aRio Branco (AC)
653 $aWestern Amazon
700 1 $aVALENTIM, J. F.
700 1 $aSA, C. P. de
700 1 $aSALES, F. de
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