Study of hydrocarbons in bottom sediments of the northern Dvina River-White Sea geochemical barrier during spring flood.

Nemirovskaya, I. (2007) Study of hydrocarbons in bottom sediments of the northern Dvina River-White Sea geochemical barrier during spring flood. In: Proceedings of the Thirtieth Arctic and Marine Oilspill Program (AMOP) Technical Seminar : June 5-7, 2007, Edmonton (Alberta) Canada = Compte rendu du trentieme Colloque technique du Programme de lutte contre les deversements d'hydrocarbures en mer et dans l'Arctique (AMOP) : 5-7 juin, 2007, Edmonton (Alberta) Canada. ; 2 . Environment Canada, Ottawa, Canada, pp. 911-924.

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Abstract

The first studies of hydrocarbons in bottom sediments of the mouth of the Northern Dvina River were carried out in May 2005. Measured aliphatic hydrocarbon content of 13 to 1532 μg/g (up to 74% from organic carbon) and polycyclic aromatic hydrocarbons of 3 to 217 ng/g (up to 19.57% × 10 -2 from organic carbon) are compared to their content in regions with permanent input of pollutants and is noticeably higher than the content of hydrocarbons in the studied area in summer. Weathered oil and pyrogenic compounds dominated the composition of hydrocarbons. It has been shown that during flooding, the Northern Dvina - Dvina Bay geochemical barrier becomes a filter, which prevents pollutants from penetrating to the White Sea.

Document Type: Book chapter
Keywords: Hydrocarbons; Bottom-sediments; Dvina River, Siberia, Russia; White Sea; Spring flood
Projects: Laptev Sea System, Polynya
Date Deposited: 17 Apr 2015 09:43
Last Modified: 17 Apr 2015 09:43
URI: http://oceanrep.geomar.de/id/eprint/28501

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