RT Journal Article
T1 Biodisponibilidad de Fe y metales pesados en los sedimentos de la Ría de Huelva (SO de España)
T1 Bioavailability of Fe and heavy metals in sediments from the Ria of Huelva (South-Western Spain)
A1 López González, Nieves
A1 Borrego Flores, José
A1 Carro Flores, Berta
A1 Lozano Soria, O.
AB Bioavailability of Fe, Cu, Zn, As, Cd and Pb has been studied in 17 samples of surface sediments of the Riaof Huelva. In all cases, total concentration of these elements is high, especially of Zn (1660,6 ppm),followed by Cu (1499,9 ppm), Pb (919,2 ppm), As (432,5 ppm) and Cd (2,7 ppm). The highestconcentrations associated with bioavailable fractions are shown by Zn (86% of total concentration) followedby Cd (76,5%), Fe (59%), Cu (45%), As (32%) and Pb (31%). The main source of metal input are the Tintoand Odiel rivers, which acidic water (pH < 4) discharge coming from acid mine drainage (AMD) to theestuary. Acidic water inputs and mixing processes with sea water are the main control in the spatialdistribution of metals and their association with the different target fractions
PB Sociedad Geológica de España
YR 2004
FD 2004
LK http://hdl.handle.net/10272/8823
UL http://hdl.handle.net/10272/8823
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026