A toxic spill of mining waste from an industrial plant in Hungary is the worst of its kind in the country’s history and may end up matching the Baia Mare cyanide spill in Romania in 2000. The spill, with a pH level of up to 13, has already spread into rivers with fears that heavy rains will see it reach the Danube River, sparking bad memories of the Baia Mare disaster in Romania when cyanide polluted water was discharged from a gold mine reservoir poisoning water and wildlife through neighbouring Hungary, Serbia and Bulgaria.