The possibility of implementation of the sustainable development concept for the recreational coastline of Yalta city regarding biogenic elements, radionuclides, heavy metals, and organochlorine compounds (Crimea, Black Sea)

Abstract

In the Yalta city water area (Crimea, Black Sea), hydroacoustic sounding was carried out, and area and volume of waters of the Vodopadnaya River estuarine zone were determined down to a depth of 40 m. Concentration of biogenic elements (NO2, NO3, NH4, and PO4) and heavy metals (Cu, Zn, Fe, Co, Ni, Mo, Cd, Pb, and Hg) in freshwater of the river estuary exceeds their content in coastal seawater by 3–64 times. The effect of the river discharge on seawater eutrophication was assessed. Using post-Chernobyl radioisotopes 90Sr and 137Cs, bottom sediments dating was carried out, and the sedimentation rate in the studied water area was determined. Fluxes of pollutants with the Vodopadnaya River runoff and the periods of their turnover in the Yalta city recreational coastline were calculated. The obtained results were used to substantiate the sustainable development concept for the Yalta city recreational zone in terms of the factors of pollution of its marine environment.

Keywords

• Black Sea
• Crimea
• water
• biogenic elements
• strontium-90
• cesium-137