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Mathematical modeling of marine environment pollution processes by petroleum hydrocarbons and their degradation in Caspian Sea ecosystem

Content Provider	Springer Nature Link
Author	Leov, A. V. Chicherina, O. V. Semenyak, L. V.
Copyright Year	2011
Abstract	The available observational data on the pollution of tributaries and areas of the Caspian Sea by petroleum hydrocarbons and products are examined. The possible petroleum input from sources in the sea is assessed using up-to-date data of satellite observations of sea surface pollution by oil films. The hydroecological CNPSi-model is applied to studying water pollution processes by petroleum hydrocarbons in ten areas chosen in the Caspian Sea and the subsequent biodegradation of those pollutants. The model calculations of the within-year dynamics of petroleum hydrocarbon concentrations use mean annual observational data on within-year variations in water mediium characteristics (water temperature, light intensity, and transparency), as well as the morphometric parameters of sea areas (the area, mean depth, and water volumes). The characteristics of water exchange between the areas were evaluated using a hydrodynamic model. The model calculations were used to characterize the within-year variations in petroleum hydrocarbon concentrations, the biomasses of petroleum-oxidizing bacteria, the characteristics of their oxidation activity and bioproduction, and the internal fluxes of petroleum hydrocarbons (their input from various sources, horizontal and vertical transport, and biotransformation) in different sea areas. Calculation results were used to compile annual balances for the processes of input and consumption of petroleum hydrocarbons in the chosen and aggregated sea areas.
Starting Page	774
Ending Page	798
Page Count	25
File Format	PDF
ISSN	00978078
Journal	Water Resources
Volume Number	38
Issue Number	6
e-ISSN	1608344X
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2011-11-09
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	water pollution in sea tributaries and areas by petroleum products satellite observations estimated dynamics of petroleum product concentrations activity of petroleum-oxidizing bacteria estimated balances of petroleum products for areas and aggregated water areas of the sea modulus of petroleum product load on marine ecosystem Hydrogeology Waste Water Technology Water Pollution Control Water Management Aquatic Pollution
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology

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