Abstract

The contamination level of sea bottom sediments with polycyclic aromatic hydrocarbons in the Balaklava Bay (the Black Sea) was estimated depending on sediments particle size distribution. The total content of these pollutants in the studied water area was averagely 2459,58 ng/g. The increased concentrations of polycyclic aromatic hydrocarbons are confined to the eastern coast and the central part of the bay. Fourteen polyaromatic hydrocarbons were totally identified in 2018, four of which (naphthalene, 2-methylnaphthalene, fluorene, anthracene) had a trace content. Four- and fivecyclic aromatic hydrocarbons made the main contribution to the pollution of sea bottom sediments. In particular, it was chrysene (40,1 %), fluoranthene (17,5 %), benz(b)fluoranthene (15,1 %). The concentration of benz(a)pyrene in bottom sediments of the Balaklava bay ranged from 0,05 - 121,0 ng/g. Its increased concentrations are confined to the central part of the bay in the eastern coast. The amount of polyarenes correlated with the part of silt fraction (0,05 - 0,1 mm)...

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