RT Journal Article T1 Sobre la calidad del agua del futuro embalse de Alcolea (Cuenca del río Odiel, Huelva) T1 Water Quality of the Future Alcolea Dam (Odiel River Basin, Huelva) A1 Olías Álvarez, Manuel A1 Nieto Liñán, José Miguel A1 Galván González, Laura A1 Miguel Sarmiento, Aguasanta A1 Ruiz Cánovas, Carlos AB The Odiel River drains the central part of the Iberian Pyrite Belt, an area with many polymetallic massivesulphide mines that have been worked since prehistoric times. As a consequence of the oxidative dissolutionof the sulphides exposed in the surface associated to mining activities, acid mine drainage pollution is animportant processes in the Odiel basin that lower considerably the water quality of the river. In fact, nearits mouth, the Odiel river has a very low pH and high concentrations of metals and metalloids in solution.Two reservoirs are planned in the Odiel river within the National Hydrologic Plan: Alcolea and Coronada.The construction of the Alcolea dam is suppose to start this year, with a total planned investment of200.000.000 . After the study and analysis of the water quality in the watershed of the Alcolea dam, andthe study of the chemical evolution with time in others water dams in the Odiel basin, the inferred longtermquality for the water in the Alcolea dam will not allow its direct use for agriculture or industrial uses.Therefore, taking into account the important investment planned and the poor quality of the water expected,it is necessary an important re-evaluation of the original project that takes into account, in a more rigorousway, the final quality of the water accumulated in the dam YR 2007 FD 2007 LK http://hdl.handle.net/10272/8430 UL http://hdl.handle.net/10272/8430 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 1 jun 2026