Publications

Scientific publications

В.А. Даувальтер.
Концентрация халькофильных элементов (Hg, Cd, Pb, As) в донных отложениях водных объектов водосбора Белого моря в пределах Кольского полуострова
// Проблемы изучения, рационального использования и охраны ресурсов Белого моря. Материалы IX международной конференции 11-14 октября 2004 г., Петрозаводск, Карелия, Россия. Петрозаводск: КарНЦ РАН, 2005. C. 92-96
V.A. Dauvalter. Сoncentrations of chalkophilous elements (Hg, Cd, Pb and As) in sediments of water reservoirs of the White Sea watershed within the Kola Peninsula // The study, sustainable use and conservation of natural resources od the White sea. Proceedings of the IXth international conference October, 11-14, 2004, Petrozavodsk, Karelia, Russia, 2005. Pp. 92-96
In results of investigations of chemical composition of lake sediments of the White Sea watershed within the Kola Peninsula the increase of concentrations of chalkophilous elements (Hg, Cd, Pb and As) in all investigated water reservoirs was established without dependence from whether they subject to air loading or accept sewage waters of the industrial enterprises. These elements last decades have got the status of global polluting elements. Thickness of the polluted sediment layer depends on sedimentation rate and ranges from 1 up to 15 cm. The increase of Pb content occurs from the end of XIX century to the beginning of industrial activity on the Kola Peninsula. The initial stage of Рb accumulation can be connected with transition of the polluted air masses from the industrial Europe. The appreciable increase of Cd concentration is dated 30-40 of XX century and the increased accumulation of this element occurs in the superficial layer. The increased concentrations of chalkophilous elements in sediments of the largest lake of Kola Peninsula Imandra are noticed in the top 10 cm layer. Excess of the contents in modern sediment layers сompared to background concentrations consists 7, 5, 7 and 4 times for Hg, Cd, Pb and As respectively.

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Last modified: May 31, 2012