Turkish Journal of Fisheries and Aquatic Sciences
2012, Vol 12, Num, 5 (Pages: 507-522 ()
The Seawater Pollution Survey in the Northern Black Sea
2 Ukrainian Research Center of Marine Ecology, 270009 Frantsuzsky Bvd. 89, Odessa, Ukraine DOI : 10.4194/1303-2712-v12_2_43 Viewed : 3998 - Downloaded : 3293 For the first time the integral scene of the toxicological field in the northern Black Sea as it was in the 1990s, with characteristic seasonal and spatial variations, was obtained by means of the integral indices. Priority pollutants during the investigation time were iron, chrome and copper, the registered concentrations of which exceeded maximum allowable concentrations (MAC). In the surface micro layer of the sea total petroleum hydrocarbons and chlorine organic compounds (PCB, HCCH and DDT and its products) were also found in quantities exceeding MAC.
Most probably, the spring (March, May) peak of pollution observed in the pelagic zone developed as a result of the spring flood. In July, the relative well-being of the sea was owing to that spring-summer phase of plankton succession completed in a mass descent of dead plankton to the sea floor that, together with intensive sedimentation of pollutants by suspended matter, favored natural purification.
Keywords : Index of water pollution, main pelagic layers, priority pollutants, sedimentation, bioaccumulation, spatial and seasonal variability