Natural and anthropogenic total suspended matter in coastal waters of the Heracleoan peninsula (Black Sea)

by

P.D. Lomakin, A.I. Chepyzhenko

Marine Hydrophysical Institute of RAS, RF, Sevastopol, Kapitanskaya St., 2

E–mail: p_lomakin@mail.ru

DOI: 10.33075/2220-5861-2025-1-61-70

UDC 504+551. 465                                                         

EDN: https://elibrary.ru/dyerdt

Abstract:

Based on data from a series of expeditions conducted by the Marine Hydrophysical Institute and other research institutes in Sevastopol in 2006–2019, the structure of the concentration field of total suspended matter (TSM) in the bays and coastal waters of the Heraclean Peninsula is analyzed. The natural and anthropogenic components in the concentration field of the substance in question are separated.  The main sources of anthropogenic suspended matter are identified, and the linear scale of their influence on the surrounding water space is assessed. It is shown that in waters that do not experience anthropogenic impact, the characteristic concentration of TSM (conditional natural norm) is equal to 0.8 mg/l. The most significant sources of anthropogenic TSM are located in open areas of the studied water area – these are wastewater collectors in the cities of Balaklava and Sevastopol, as well as the oil terminal at Cape Manganari. The horizontal scale of influence of these objects is 0.5–1.5 miles. TSM of anthropogenic origin, the concentration of which is 3–12 times higher than the natural norm, with the source represented by continental runoff, is constantly present in the kut parts of all studied bays. In bays, TSM of anthropogenic nature was also found in the water area of ​​the fishing port, in the area of ​​the dolphinarium and in areas adjacent to residential areas, fishing cooperatives, and ship moorings. The horizontal scale of influence of anthropogenic TSM sources in bays varies from several tens to several hundred meters.

Keywords: total suspended matter, salinity, anthropogenic impact, Sevastopol bays, Heraclean Peninsula, Black Sea

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