Soil to plant transfer of 137Cs and 60Co in Ferralsol, Nitisol and Acrisol.
J Environ Radioact
; 99(3): 546-53, 2008 Mar.
Article
em En
| MEDLINE
| ID: mdl-17905488
ABSTRACT
In this study, soil to plant transfer factor values were determined for 137Cs and 60Co in radish (Raphanus sativus), maize (Zea mays L.) and cabbage (Brassica oleracea L. var. capitata) growing in gibbsite-, kaolinite- and iron-oxide-rich soils. After 3 years of experiment in lysimeters it was possible to identify the main soil properties able to modify the soil to plant transfer processes, e.g. exchangeable K and pH, for 137Cs, and organic matter for 60Co. Results of sequential chemical extraction were coherent with root uptake and allowed the recognition of the role of iron oxides on 137Cs behaviour and of Mn oxides on 60Co behaviour. This information should provide support for adequate choices of countermeasures to be applied on tropical soils in case of accident or for remediation purposes.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poluentes Radioativos do Solo
/
Brassica
/
Radioisótopos de Césio
/
Radioisótopos de Cobalto
/
Zea mays
/
Raphanus
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
J Environ Radioact
Assunto da revista:
SAUDE AMBIENTAL
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Brasil