Acid mine-water and agricultural pollution in a river skirting the Donana National Park (Guadiamar river, south west Spain)

Abstract

An inventory of the pollution originated by a mining industry in its first stages of development and by a highly developed agriculture is carried out in a river skirting the Donana National Park. The pathway along the Guadiamar river basin was studied for heavy metals derived from the opencast-worked polymetallic sulphide deposits and from the mine spoil heaps. The dynamics of N, P and herbicides in waters of urban and/or agricultural origin was also discussed. | An inventory of the pollution originated by a mining industry in its first stages of development and by a highly developed agriculture is carried out in a river skirting the Donana National Park. The pathway along the Guadiamar river basin was studied for heavy metals derived from the opencast-worked polymetallic sulphide deposits and from the mine spoil heaps. The dynamics of N, P and herbicides in waters of urban and/or agricultural origin were also discussed.