Comportamiento del hierro, cromo, cadmio y plomo en total de las aguas superficiales del Manzanares

What is it about?

Results are presented for total iron, chromium, cadmium, and lead concentrations measured in the surface water of the Manzanares river (Venezuela), during two typical weather periods of the region (May and November) of 1994. 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.

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