Data/hora: 09/06/2024 17:21:10

Biblioteca(s): | Embrapa Agrobiologia.
Data corrente: | 01/06/2020
Data da última atualização: | 01/06/2020
Autoria: | SIMÕES, B. F.; MAZUR, N.; CORREIA, M. E. F.; NIEMEYER, J. C.; MATOS, T. de S.
Afiliação: | BRUNA FARIA SIMÕES, UFRRJ; NELSON MAZUR, UFRRJ; MARIA ELIZABETH FERNANDES CORREIA, CNPAB; JULIA CARINA NIEMEYER, UFSC; TALITA DE SANTANA MATOS, UFRRJ.
Título: | Ecotoxicity test as an aid in the determination of copper guideline values in soils.
Ano de publicação: | 2020
Fonte/Imprenta: | Ciência Rural, Santa Maria, v. 50, n. 6, e20180961, 2020.
ISSN: | 1678-4596
DOI: | http://doi.org/10.1590/0103-8478cr20180961
Idioma: | Inglês
Notas: | Título em Português: Ensaios  de  ecotoxicidade  como  auxílio  na  determinação  de  valores  orientadores  de  cobre  em  solos.
Conteúdo: | The process of identifying a contaminated area involves a preliminary assessment consisting of chemical analysis and comparison with guideline values. In Brazil, these values are included in the CONAMA Resolution no. 420/2009, based on chemical analysis and phytotoxicity. The objective of this research was to evaluate the ecotoxicity of copper in two natural soils in the state of Rio de Janeiro, a Haplic Planosol (sandy) and a Red-Yellow Argisol (medium texture), to verify if the values established by the legislation offer protection to the soil fauna. Lethality and reproduction tests were performed with Eisenia andrei worms and Folsomia candida springtails. Results indicated copper values in Planosol as LC50 435 mg kg 1 and EC50 29 mg kg 1 for E. Andrei and LC10 137 mg kg 1 and EC50 117 mg kg 1 for F. candida. In Argisol, these results were LC50 690 mg kg 1 and EC50 61 mg kg 1 for E. andrei, and LC10 42 mg kg 1 and EC50 138 mg kg 1 for F. candida. Values reported are lower than the research value (200 mg kg-1) established by the CONAMA resolution 420/09, indicating that concentrations lower than the limit values may affect these organisms, depending on the type of soil. Worms were more sensitive than springtails to copper contamination, and sandy soil was more susceptible to ecotoxicity due to copper contamination, probably due to the greater bioavailability of the metal. Results of such ecotoxicity tests should be considered in the development of soil guideline values. Key words: contaminated areas, risk assessment, terrestrial ecotoxicology, soil invertebrates, metals, natural soils.
Palavras-Chave: | Contaminated areas; Natural soils; Terrestrial ecotoxicology.
Thesaurus Nal: | Metals; Risk assessment; Soil invertebrates.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/213524/1/Ecotoxicity-test-as-an-aid-in-the-determination-of.pdf
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (41393-1) - UPC - AP - DD -  -  -  - DIS