Título: Total levels of iron, chromium, cadmium and lead in the surface water of the Manzanares River, Venezuela, during dry and wet periods in 1994. Comportamiento del hierro, cromo, cadmio y plomo total en las aguas superficiales del Río Manzanares, Venezuela, durante los periodos de sequía y lluvia en el año 1994

Autor: Luna, I.L. ; Senior, W. ; Martinez, G.

Año: 1997

Fuente: Caribbean Journal of Science, 33 (1-2): 105-111

Resumen:

Results are presented for total concentrations of these metals. The existence of removal processes in the early stages of the mixing process of freshwater and seawater is evident from their spatial distributions. It is suggested that this removal of heavy metals is associated with the geochemical process of flocculation and the formation of oxihydroxides, rather than with the dilution process. Input of heavy metals to the ecosystem was observed at low salinities that are likely associated to the process of desorption and are due to anthropogenic activities