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- Title
Aliphatic and polyaromatic hydrocarbons in bottom sediments of offshore mouth area of the Volga.
- Authors
Nemirovskaya, I.; Brekhovskikh, V.; Kazmiruk, V.
- Abstract
Data on the concentration and composition of aliphatic and polyaromatic hydrocarbons in the surface layer and the body of bottom sediments in Volga delta and on the northern Caspian shelf are given. Volga delta sediments are shown to contain large concentrations of organic compounds. It is established that the concentrations of organic compounds is largely dependent on the dispersiveness of sediments. Anthropogenic hydrocarbons, both oil and pyrogenic, fail to pass the marginal filter of the Volga River and do not reach the open part of the sea. Therefore, the hydrocarbons contained in the bottom sediments on the Caspian Sea shelf are mostly of natural genesis. The distribution of organic compounds in the bottom sediment strata has a complex character. In some cases, their concentration increases because of the higher flux of hydrocarbons (especially, polyarenes in the 1950s).
- Subjects
CASPIAN Sea; HYDROCARBONS; MARINE sediments; SEDIMENTATION &; deposition; ORGANIC compounds; POLYCYCLIC aromatic hydrocarbons; CHEMICALS; RIVERS; FILTERS &; filtration
- Publication
Water Resources, 2006, Vol 33, Issue 3, p274
- ISSN
0097-8078
- Publication type
Article
- DOI
10.1134/S0097807806030055