abstract: 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 
journal: Turkish Journal of Fisheries and Aquatic Sciences