Influência das substâncias húmicas de sedimentos na biodisponibilidade de metais para o sistema aquático
AUTOR(ES)
Botero, Wander Gustavo, Souza, Shenia de Oliveira, Santos, Oseas Silva, Oliveira, Luciana Camargo de, Amarante, Cristine Bastos do
FONTE
Quím. Nova
DATA DE PUBLICAÇÃO
2014-07
RESUMO
In rivers, sediments act as sinks for retaining contaminants. This study evaluated the influence of sediment humic substances (HS) on the bioavailability of metals. The levels of metals in sediments and HS indicated that most are complexed with HS. Characterization of HS showed a high degree of humification. The complexation capacity of HS for metals established the affinity order:Pb2+ Documentos Relacionados