Fracionamento de metais pesados em solo contaminado antes e após cultivo de arroz


Autoria(s): Silva,Maria Ligia de Souza; Vitti,Godofredo Cesar
Data(s)

01/01/2008

Resumo

The objective of the present work was to evaluate the distribution of Cd, Cu, Mn, Pb and Zn among the different fractions of contaminated soil, before and after rice cultivation. Seven soil samples with different degrees of contamination were studied using a randomized experimental design, with four replicates. Using an ICP-OES we analyzed the contents of heavy metals in fractions of soil, the organic matter therein, the oxides and the residual content before and after rice cultivation. The largest concentrations of Cd, Cu, Mn and Zn in the soil are found in the fractions with stable chemical bonds.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600021

Idioma(s)

pt

Publicador

Sociedade Brasileira de Química

Fonte

Química Nova v.31 n.6 2008

Palavras-Chave #chemical extractors #pollution #sequential extraction
Tipo

journal article