Observation of Pollution in Water and Sediments in Middle Black Sea Coast by Using Dgt (Diffusive Gradients In Thin Films) Method

Sancak Ş., Şimşek A., Bakan G.

1st WORLD CONFERENCE ON SUSTAINABLE LIFE SCIENCES, Budapest, Hungary, 30 June - 07 July 2019

  • Publication Type: Conference Paper / Summary Text
  • City: Budapest
  • Country: Hungary
  • Ondokuz Mayıs University Affiliated: Yes


The Black Sea which is connected to the Azov Sea in the north and to the Mediterranean in the 

South, is called the largest anoxic sea in the world because 90% of its structure is anoxic. in the 

Black Sea, which has undergone ecological changes for many years and nowadays, marine activities, 

excessive nutrient input, increase in foreign species, wastes from the regions where agricultural 

production is carried out, domestic and industrial pollution sources lead to degradations.

in this study, it was aimed to determine the degree of domestic and industrial pollution in water 

and sediment by DGT (Diffusion and Gradient in Thin Films) method in the Black Sea. Five different 

sampling points were selected, including Akkiraz Stream, Şabanoğlu Stream, Organized lndustrial 

Zone Channel, Hıdırellez Stream and Selyeri Stream. The organic matter content, % water content and 

partide size analysis were performed for these sediments. Standard analyzes such as pH, 

conductivity, temperature, TOC, TN, TP were applied to the water samples. in addition, heavy metal 

accumulation along the depth was observed in the sediment column with the DGT used in the 

determination of the elements and compounds in the aquatic environment including natural sediments 

and soils.

As a result, the organic matter content of the sediment samples was between 5.88% and 9.96%, and the 

water content 14.66% and 32.79%. in the analysis of water samples, pH values were between 0.6-0.9, 

dissolved oxygen values 4-12 mg / L and chemical oxygen requirement 32-192 mg / L. Analysis results 

were evaluated according to the Aboveground Water Quality Regulation and international Sediment 

Quality Criteria.