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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
08/11/2018 |
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Data da última atualização: |
06/02/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VEZZONE, M.; CESAR. R.; POLIANOV, H.; SERRANO, A.; SIQUEIRA, D.; ABREU, L.; BIANCHI, M.; CORREIA, M. E. F.; CASTILHOS, Z.; CAMPOS, T. de. |
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Afiliação: |
MARIANA VEZZONE, UFRJ; RICARDO CESAR, UFRRJ; UFRJ; UFRJ; UFRRJ; LETICIA ABREU, UFRJ; MIRIAM BIANCHI, BOLSISTA EMBRAPA AGROBIOLOGIA; MARIA ELIZABETH FERNANDES CORREIA, CNPAB; ZULEICA CASTILHOS, CETEM, RJ; TÁCIO DE CAMPOS, PUC RIO. |
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Título: |
Ecotoxicological evaluation of dredged sediments from Rodrigo de Freitas Lagoon (Rio de Janeiro State, Brazil) using bioassays with earthworms and collembolans. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Environmental Earth Sciences, v. 77, p. 743-754 2018. |
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ISSN: |
1866-6280 |
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DOI: |
https://doi.org/10.1007/s12665-018-7930-4 |
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Idioma: |
Inglês |
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Conteúdo: |
The toxicity and metal bioavailability were studied in dredged sediments from Rodrigo de Freitas Lagoon (Rio de Janeiro, RJ, Brazil) using acute and avoidance tests with Eisenia andrei, and reproduction tests with Folsomia candida. The sediment was mixed with an artificial soil, and two natural soils (ferralsol and chernosol?representative Brazilian tropical soils) to obtain the following doses: 1, 3, 6, 12, 18, 24 and 30%. Total metal concentrations were determined in the sediment to support the interpretation of ecotoxicological data. Metal concentrations in the mixtures were in agreement with the threshold limits established by Brazilian law. However, significant avoidance responses were found on doses ??3% and were the most sensitive endpoint. Earthworm mortality found in artificial soil mixtures (LC50?=?3.9) suggests higher toxicity levels than those obtained in ferralsol (LC50?=?7.6%) and chernosol (11.0%) treatments. Earthworm mortality, avoidance responses and collembolan reproduction levels found in ferralsol mixtures (LC50?=?9.2; avoidance EC50?=?2.3%; reproduction EC50?=?2.8%) were higher compared to chernosol treatments (LC50?=?11.0%; avoidance EC50?=?4.3%; reproduction EC50?=?4.9%). The reduction of toxicity levels in chernosol mixtures is probably due to the abundance of expansive clay minerals in chernosols with capacity of adsorbing metals and other xenobiotic substances from soil pore water, decreasing metal bioavailability. Finally, threshold limits defined by Brazilian legislation for soil quality and land disposal of dredged sediments are not sufficient to prevent noxious effects on soil fauna and should be complemented with a preliminary ecotoxicological evaluation. MenosThe toxicity and metal bioavailability were studied in dredged sediments from Rodrigo de Freitas Lagoon (Rio de Janeiro, RJ, Brazil) using acute and avoidance tests with Eisenia andrei, and reproduction tests with Folsomia candida. The sediment was mixed with an artificial soil, and two natural soils (ferralsol and chernosol?representative Brazilian tropical soils) to obtain the following doses: 1, 3, 6, 12, 18, 24 and 30%. Total metal concentrations were determined in the sediment to support the interpretation of ecotoxicological data. Metal concentrations in the mixtures were in agreement with the threshold limits established by Brazilian law. However, significant avoidance responses were found on doses ??3% and were the most sensitive endpoint. Earthworm mortality found in artificial soil mixtures (LC50?=?3.9) suggests higher toxicity levels than those obtained in ferralsol (LC50?=?7.6%) and chernosol (11.0%) treatments. Earthworm mortality, avoidance responses and collembolan reproduction levels found in ferralsol mixtures (LC50?=?9.2; avoidance EC50?=?2.3%; reproduction EC50?=?2.8%) were higher compared to chernosol treatments (LC50?=?11.0%; avoidance EC50?=?4.3%; reproduction EC50?=?4.9%). The reduction of toxicity levels in chernosol mixtures is probably due to the abundance of expansive clay minerals in chernosols with capacity of adsorbing metals and other xenobiotic substances from soil pore water, decreasing metal bioavailability. Finally, threshold limits defined... Mostrar Tudo |
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Palavras-Chave: |
Chernosol; Ferralsol. |
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Thesaurus Nal: |
Folsomia candida. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02607naa a2200289 a 4500
001 2099061
005 2019-02-06
008 2018 bl uuuu u00u1 u #d
022 $a1866-6280
024 7 $ahttps://doi.org/10.1007/s12665-018-7930-4$2DOI
100 1 $aVEZZONE, M.
245 $aEcotoxicological evaluation of dredged sediments from Rodrigo de Freitas Lagoon (Rio de Janeiro State, Brazil) using bioassays with earthworms and collembolans.$h[electronic resource]
260 $c2018
520 $aThe toxicity and metal bioavailability were studied in dredged sediments from Rodrigo de Freitas Lagoon (Rio de Janeiro, RJ, Brazil) using acute and avoidance tests with Eisenia andrei, and reproduction tests with Folsomia candida. The sediment was mixed with an artificial soil, and two natural soils (ferralsol and chernosol?representative Brazilian tropical soils) to obtain the following doses: 1, 3, 6, 12, 18, 24 and 30%. Total metal concentrations were determined in the sediment to support the interpretation of ecotoxicological data. Metal concentrations in the mixtures were in agreement with the threshold limits established by Brazilian law. However, significant avoidance responses were found on doses ??3% and were the most sensitive endpoint. Earthworm mortality found in artificial soil mixtures (LC50?=?3.9) suggests higher toxicity levels than those obtained in ferralsol (LC50?=?7.6%) and chernosol (11.0%) treatments. Earthworm mortality, avoidance responses and collembolan reproduction levels found in ferralsol mixtures (LC50?=?9.2; avoidance EC50?=?2.3%; reproduction EC50?=?2.8%) were higher compared to chernosol treatments (LC50?=?11.0%; avoidance EC50?=?4.3%; reproduction EC50?=?4.9%). The reduction of toxicity levels in chernosol mixtures is probably due to the abundance of expansive clay minerals in chernosols with capacity of adsorbing metals and other xenobiotic substances from soil pore water, decreasing metal bioavailability. Finally, threshold limits defined by Brazilian legislation for soil quality and land disposal of dredged sediments are not sufficient to prevent noxious effects on soil fauna and should be complemented with a preliminary ecotoxicological evaluation.
650 $aFolsomia candida
653 $aChernosol
653 $aFerralsol
700 1 $aCESAR. R.
700 1 $aPOLIANOV, H.
700 1 $aSERRANO, A.
700 1 $aSIQUEIRA, D.
700 1 $aABREU, L.
700 1 $aBIANCHI, M.
700 1 $aCORREIA, M. E. F.
700 1 $aCASTILHOS, Z.
700 1 $aCAMPOS, T. de
773 $tEnvironmental Earth Sciences$gv. 77, p. 743-754 2018.
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Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 16 | |
| 12. |  | SILVA, A. C. L. da; ULLER, H. F.; GUARINO, E. de S. G. Mapeamento, coleta de óleo-resina e identificação taxonômica de Copaifera L. na reserva florestal da Embrapa Acre. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA PIBIC/PIBITI DA EMBRAPA ACRE, 1., 2013, Rio Branco, AC. Anais... Rio Branco, AC: Embrapa Acre, 2013. 7 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Acre. |
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| 14. | | KLIMAS, C. A.; AZEVEDO, V. R.; SILVA, A. C. C. da; KAINER, K. A.; WADT, L. H. de O. Andiroba: aspectos ecológicos e considerações para o manejo. In: SIVIERO, A.; MING, L. C.; SILVEIRA, M.; DALY, D. C.; WALLACE, R. H. (org.). Etnobotânica e botânica econômica do Acre. Rio Branco, AC: Edufac, 2016. cap. 9, p. 141-154.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Acre. |
|  |
| 15. | | GUARINO, E. de S. G.; ULLER, H. F.; ESSEMAN-QUADROS, K.; GESSNER, C. M.; SILVA, A. C. L. da. Effects of morphological and environmental variation on probability of Copaifera paupera oleoresin production. Pesquisa Florestal Brasileira, Colombo, v. 37, n. 92, p. 565-573, out./dez. 2017| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Acre. |
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| 16. | | WADT, L. H. de O.; KLIMAS, C. A.; RIGAMONTE-AZEVEDO, V.; SILVA, A. C. C. da; LIMA, L. M. da S.; CORREIA, M. F.; KAINER, K. Produção de sementes de andiroba (Carapa guianensis Aubl.) no período de 2004 a 2008, em dois ambientes de floresta natural, em Rio Branco, Acre. In: SEMINÁRIO MANEJO SUSTENTÁVEL DE PRODUTOS FLORESTAIS NÃO-MADEIREIROS NA AMAZÔNIA, 1., 2008, Rio Branco, AC. Anais... Rio Branco, AC: Embrapa Acre, 2008. p. 75-80. Editora: Lúcia Helena de Oliveira Wadt.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Acre. |
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| Registros recuperados : 16 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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