RT Journal Article
T1 Variación estacional en la especiación y movilidad de Fe y As en aguas afectadas por drenajes ácidos de mina en la cuenca del río Odiel (Huelva)
T1 Seasonal variations in Fe and As speciation and mobility in waters affected by acid mine drainage in the Odielriver basin (Huelva, Spain)
A1 Miguel Sarmiento, Aguasanta
A1 Casiot, C.
A1 Nieto Liñán, José Miguel
A1 Elbaz Poulichet, F.
A1 Olías Álvarez, Manuel
AB The Odiel river drains the central part of the Iberian Pyrite Belt, one of the oldest and most importantmassive sulphide districts in the world. In these massive sulphide deposits, arsenic can be found in arsenicalpyrite (with up to 0.4 % of As), and in some accessory minerals such as arsenopyrite. The oxidativedissolution of these sulphides releases to the Odiel river acidic waters rich in sulphates, metals and metalloids,including considerable amounts of As. Speciation and mobility of Fe and As in these waters show importantseasonal variations, especially in samples not very close to the pollution sources. Although in the wetseason the concentration of total As tends to be lower because of dilution with rain water, the toxicity ofthe waters is higher due to an increase in the concentration of As3+
PB Sociedad Geológica de España
YR 2004
FD 2004
LK http://hdl.handle.net/10272/8903
UL http://hdl.handle.net/10272/8903
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026