The main objects of anthropogenic impact on the Kerch strait water environment according to hydrooptical and hydro-chemical observation data

by

P.D. Lomakin1,2, S.S. Zhugailo3, B.N. Panov3, A.I. Chepyzhenko1, A.A. Chepyzhenko1

1Federal State Budget Scientific Organization Federal Research Center “Marine Hydrophysical Institute”,

RF, Sevastopol, Kapitanskaya St., 2

2Institute of the Natural and Technical Systems, RF, Sevastopol, Lenin St., 28

3The Azov-Black Sea Branch of Russian Federal “Research Institute of Fisheries and Oceanography”

(“AzNIIRKH”), Rostov-on-Don, Beregovaya St., 21v

E-mail: p_lomakin@mail.ru

DOI: 10.33075/2220-5861-2020-4-75-85

UDC 504+551. 465

Abstract:

   Based on expeditionary data of Marine Hydrophysical Institute (MHI, Sevastopol) and Southern Research Institute of Marine Fisheries and Oceanography (YugNIRO, Kerch), the main objects of economic activity that result in anthropogenic impact on the Kerch Strait waters and adjacent areas of the Sea of Azov and the Black Sea are identified. The result of typification of TSM (z) and DOM (z) vertical profiles is considered. Zoning schemes for the studied water area by typical features of field stratification of these values ​​are proposed. Along with relatively “smooth” profiles, which characterize the unpolluted waters of the Sea of Azov and the Black Sea interacting in the Strait, the TSM (z) and DOM (z) profiles which have a special non-monotonic form with thin layers of water, with concentrations of estimated values several and ten times exceeding their background content are established. This stratification type indicates waters under anthropogenic impact, and its range is represented by individual lenses with high TSM and DOM content. It is established that such lenses are located near the main objects of economic activity (ports, cargo terminals, dumping zones, raid transshipment points, etc.), which transport anthropogenic total suspended matter and dissolved organic matter to the aquatic environment. The impact of identified anthropogenic objects in the TSM and DOM concentration fields is estimated at 1-6 miles. Based on complex analysis of standard hydrochemical observations, it is shown that these objects are also significant sources of water pollution in the studied region.

Keywords: total suspended matter, dissolved organic matter, anthropogenic impact, contamination, the Kerch Strait.

To quote: Lomakin, P.D., S.S. Zhugailo, B.N. Panov, A.I. Chepyzhenko, A.A. Chepyzhenko, et al. “The Main Objects of Anthropogenic Impact on the Kerch Strait Water Environment According to Hydrooptical and Hydro-Chemical Observation Data.” Monitoring Systems of Environment no. 4 (December 24, 2020): 75–85. doi:10.33075/2220-5861-2020-4-75-85.

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