| http://www.w3.org/ns/prov#value | - Rivers such as the danube, Dnieper and Dniester are the main polluters of the Black Sea, with the Danube in the lead, most experts agree. ???Nearly 60 percent of the water of the Black Sea comes from the Danube, around 20 percent from rivers such as the Dnieper and Dniester, while around 15 percent originates from rivers in Turkey,??? Professor Cem Gazio??lu from ??stanbul University???s Institute
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