Migration forms of hydrocarbons in waters and bottom sediments of the Gulf of Riga, supplement to: Nemirovskaya, Inna A (1994): Hydrocarbons in the interface zones of the Gulf of Riga and the Gulf of Finland. Oceanology, 34(3), 347-354Inna A Nemirovskaya
It is found that hydrocarbons are constantly accumulated on the main geochemical barriers: water-atmosphere, river-sea, water-suspended matter, and water-bottom sediment interfaces. Degree of hydrocarbon accumulation reaches 13.5-17.6 in the surface microlayer and exceeds 1000 in bottom sediments. Hydrocarbon composition changes in this process. Local pollutant loads result in accumulation of polycyclic aromatic hydrocarbons by bottom sediments and benzo(a)pyrene concentration sometimes exceeds MPC. Content of hydrocarbon migratory forms is calculated.
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