Il cedimento della diga che conteneva acque residuali di una miniera di rame rischia di provocare un disastro ambientale nella regione cilena di Valparaiso. L’allarme è stato lanciato dalla popolazione di Cabildo, a valle della miniera Las Cenizas, che ha denunciato l’inquinamento delle acque del fiume La Ligua, utilizzate per l’irrigazione di avocado.
La compagnia mineraria ha ammesso, attribuendo la responsabilità dell’evento alle eccezionali piogge che hanno colpito la regione, provocando il cedimento della struttura di contenimento.
Secondo le ong ambientaliste, i liquidi riversati a valle contengono metalli pesanti derivanti dall’attività mineraria, come arsenico, zinco e piombo, che hanno contaminato i pozzi di acqua potabile rendendoli inutilizzabili.
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