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Use este identificador para citar ou linkar para este item: https://repositorio.ufba.br/handle/ri/25361
Tipo: Artigo de Periódico
Título: Distribution of cadmium in a cultivated soil in Britanny, France.
Autor(es): Hadlich, Gisele Mara
Ucha, José Martin
Autor(es): Hadlich, Gisele Mara
Ucha, José Martin
Abstract: Cadmium (Cd) can be potentially toxic to the environment, and its bioavailability is related to the chemical forms it occurs in the soils. The distribution of Cd into the solid phase and its availability was investigated in a cultivated soil in Britanny, France. Cd sequential extraction was performed using a modified Tessier’s sequential extraction protocol. Total content of Cd (n = 22 samples) ranged from 0.13 to 0.37 mg kg–1. Long term history of organic and mineral fertilizers application increased Cd concentration in the surface horizon. The fate of Cd was correlated with soil available P2 O5 concentration and pH. The regression analysis (linear and non-linear) and Principal Component Analysis revealed the synergistic effect of P2 O5 in the retention of Cd in cultivated soils. The following fractions’ sequence was observed: bounded to Fe and Al oxides + phosphates > exchangeable > bound to organic matter ≈ residual fraction.
Palavras-chave: Cd
soil pollution
tessier protocol
sequencial extraction
País: Brasil
Tipo de Acesso: Acesso Aberto
URI: http://repositorio.ufba.br/ri/handle/ri/25361
Data do documento: 2010
Aparece nas coleções:Artigo Publicado em Periódico (POSPETRO)

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