| Texto completo | |
| Autor(es): |
Arreguin-Rebolledo, Uriel
;
Gebara, Renan Castelhano
;
Valencia-Castaneda, Gladys
;
Rico-Martinez, Roberto
;
Frias-Espericueta, Martin G.
;
Longo, Elson
;
Paez-Osuna, Federico
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Marine Pollution Bulletin; v. 198, p. 11-pg., 2023-11-22. |
| Resumo | |
Data regarding the effects of binary metal mixtures in marine zooplankton are scarce, particularly for rotifers. We examined the toxicity of 21 binary equitoxic mixtures of As, Cd, Cu, Fe, Hg, Pb, and Zn on the euryhaline rotifer Proales similis. The toxic units (TU50) revealed that 20 of these binary mixtures exhibited synergistic effects (TU50 < 1.00). The As-Hg mixture showed a strong antagonistic effect (TU50 = 2.39), whereas the Hg-Cu interaction exhibited a significant synergistic effect (TU50 = 0.29) on P. similis. TU50 values were <0.60 in all cases that showed synergism (80 %). Regarding the MIXTOX analysis, 13 binary mixtures presented some level of synergism, while two mixtures presented only additivity. Results emphasize the need for environmental agencies to revise and readjust protection guidelines for marine biota in response to the evident synergistic effects occurring at metal mixtures concentrations below the current permissible limits. (AU) | |
| Processo FAPESP: | 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais |
| Beneficiário: | Elson Longo da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 21/13583-0 - Efeitos Ecotoxicológicos de Nanopartículas de ZnWO4 e CuWO4 Sobre Uma Cadeia Alimentar Dulcícola: Aferindo Possíveis Impactos Ambientais de Contaminantes Emergentes |
| Beneficiário: | Renan Castelhano Gebara |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |