Data/hora: 10/06/2024 00:50:19

Biblioteca(s): | Embrapa Solos.
Data corrente: | 27/11/2008
Data da última atualização: | 28/03/2022
Autoria: | WASSERMAN, M. A.; BARTOLY, F.; PORTILHO, A. P.; ROCHEDO, E. R. R.; VIANA, A. G.; PEREZ, D. V.; CONTI, C. C.
Afiliação: | M. A. WASSERMAN, CNEN; F. BARTOLY, CNEN; A. P. PORTILHO, Colégio Agrícola Nilo Peçanha/UFF; E. R. R. ROCHEDO, CNEN; A. G. VIANA, CNEN; DANIEL VIDAL PEREZ, CNPS; C. C. CONTI, CNEN.
Título: | The effect of organic amendment on potential mobility and bioavailability of 137Cs and 60Co in tropical soils.
Ano de publicação: | 2008
Fonte/Imprenta: | Journal of Environmental Radioactivity, v. 99, n. 3, p. 554-562, Mar. 2008.
DOI: | https://doi.org/10.1016/j.jenvrad.2007.08.012
Idioma: | Inglês
Conteúdo: | In this work the role of organic matter in the potential mobility and bioavailability of 137Cs and 60Co in Brazilian soil was investigated. Radish was cultivated in pots containing the top layer (0?20 cm) of a Histosol, Ferralsol and Nitisol spiked with 137Cs and 60Co. In the case of the Ferralsol and Nitisol samples, besides the control, two different rates of organic amendments were used. In these soils, a sequential extraction protocol was used to identify the main soil compartments that could be responsible for the variation of transfer factor values. Our results indicate that organic amendment could be suggested as a practical countermeasure for 137Cs and 60Co contamination, since it reduces bioavailability of radionuclides and, consequently, soil to plant transfer factor values by almost one order of magnitude in a short period of time.
Palavras-Chave: | Alterações orgânicas; Biodisponibilidade; Contramedidas; Solos tropicais.
Thesagro: | Rabanete.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Solos (CNPS)
Exemplares: | CNPS - (13560-1) - UPC - AP - DD -  -  - 2008.00047 - DIS