Heavy metals in organisms of the River Guadalquivir estuary: possible incidence of the Aznalcóllar disaster

On the 25 April 1998, the giant holding pool of the Aznalcóllar mine, owned by the Canadian–Swedish Company Boliden Ltd burst its banks; 5 million cubic meters (6.7 million cubic yards) of sludge poured into the nearby River Guadiamar, which is a tributary of the River Guadalquivir (the main river o...

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