Bioavailability of heavy metals in the Guadalete River Estuary (SW Iberian Peninsula)
Sediments in the Guadalete River estuary were studied to determine the bioavailability of five common metals (Cu, Zn, Cd, here Pb and Ni) in order to evaluate the toxicity of the sediment.Total sediment dry weight concentrations of heavy metals, simultaneously extracted metals (SEM) and acid volatile sulfides (AVS) were analyzed.Interstitial water