| total and inorganic arsenic in the fauna of the guadalquivir estuary: environmental and human health implications. | to evaluate the impact on fauna of the release of toxic waste from the tailings dam operated by the boliden apirsa s.l company at aznalcóllar, seville (spain) a study was carried out of total and inorganic arsenic contents in 164 samples from six different estuary species, including molluscs, crustaceans and fish, collected at six sampling stations distributed along the estuary and mouth of the river guadalquivir. the contents found, expressed in micrograms per gram wet weight, were as follows. ... | 1999 | 10635584 |
| 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 of the south iberian peninsula). within hours of the accident, approximately 2.5 hm3 of acidic water with high concentrations of metals, especially zn, had entered the river guadalquivir. a biomonitori ... | 1999 | 10635583 |