Portuguese Sao Domingos mine generates acidic water following 43 years of inactivity

Located five kilometres from the Spanish border, the Portuguese Sao Domingos mine, abandoned since 1966, continues to pollute the river ways that flow into Chanza dam, the largest drinking water reservoir in the province of Huelva, according to scientists from the University of Huelva. The new study shows that oxidation and the dissolving of sulphurs are processes that remain active today, so the researchers are asking that solution plans be put in place...

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