Acid mine drainage pollution in the Tinto and Odiel rivers, SW Spain
The Tinto and Odiel rivers are seriously affected by acid mine drainage from the long-term mining activities in Iberian Pyrite Belt, one of the most famous polymetallic sulfide mining regions in the world with mining activities dating back to prehistoric times. As a consequence, the Huelva estuary is heavily contaminated by metals and metalloids. This study presents an estimation of the mean dissolved contaminant load transported by both rivers. Results show that the Tinto and Odiel rivers transport enormous quantities of dissolved metals to the estuary: 7900 tyr- 1 of Iron (Fe), 5800 tyr- 1 Aluminum (Al), 3500 t yr- 1 Zinc (Zn), 1700 tyr- 1 Copper (Cu),1600tyr-1 Manganese (Mn) and minor quantities of other metals and metalloids. These values represent 37％ of the global gross flux of dissolved Zn transported by rivers in to the ocean, and 15％ of the global gross flux of dissolved Cu.
J.M.Nieto A.M.Sarmiento M.Olías C.R.Cánovas C.Ayora
Department of Geology, University of Huelva, Huelva, Spain Department of Geodynamics and Paleontology, University of Huelva, Huelva, Spain Institut de Ciencies de la Terra Jaume Almera - CSIC, Barcelona, Spain
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
1251-1254
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）