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In April 1998, a holding lagoon containing pyrite ore processing waste rich in arsenic, failed and released 5–6 millionm 3 of highly polluting sludge and acidic water. Over 2700ha of the internationally important Doñana National and Natural Parks were contaminated. The area of Natural Park to sustain the greatest impact was known as the Entremuros. This paper presents 0–5cm soil monitoring...
On 25 April 1998 part of the tailings pond dike of the Aznalcollar Zn mine north of the Guadalquivir marshes (Donana) in southern Spain collapsed releasing an estimated 5 million m 3 of acidic metal-rich waste. This event contaminated farmland and wetland up to >40 km downstream, including the 900-ha `Entremuros', an important area for birds within the Donana world heritage site. In spite...
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