Oil pollution level in sea water and sediments of Turkish Straits (Bosphorus, Sea of Marmara, Dardanelles) and Golden Horn during 2004-2007

Oil pollution level in sea water and sediments of Turkish Straits (Bosphorus, Sea of Marmara, Dardanelles) and Golden Horn during 2004-2007

Abstract In this paper oil pollution levels were determined in sea water and sediments of Turkish Straits (Bosphorus, Sea of Marmara, and Dardanelles) and additionally Golden Horn during 2004-2007. Oil concentrations were varied in examined area. The highest oil levels found in sea water were: in 2004 in Bosphorus B7 at 10 m depth 1512.73 μg/l, in 2005 at K0 therm., 3173.67 μg/l, in 2006 at KK 1307.55 μg/l and in 2007 at B13 therm., 1243.61μg/l. The highest oil amount found in sediments were: in 2004 in Sea of Marmara at MKC 1238.40 μg/g, in 2005 at MK 2763.76 μg/g, in 2006 at MK 1859.10 μg/g.The cause of high pollution levels is: for Bosphorus heavy ship traffic, for Sea of Marmara illegal discharge of ballast water from tankers came to Izmit refinery and sewage of urban/industrial water and for Golden Horn heavy boats traffic. It was observed in some stations a relationship on pollution levels between sea water and sediment.

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