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Vol. 9 (2006 year), No. 5
Chuprunov A.A., Smelov A.Yu., Dauvalter V.A.
Volumetric activity of air ground layer and atmospheric precipitation near the Kola Nuclear Power Station
Some questions of accumulation of radionuclids in waters, springs, needles, leaves and lichenes have been considered in the paper. An estimation of KNPP's activity and its contribution to the modern ecological condition of the Murmansk region has been given.
(in Russian, стр.4, fig. 5, tables. 0, ref 4, Adobe PDF, Adobe PDF 0 Kb)
Vol. 11 (2008 year), No. 3
Dauvalter V.A., Kanishchev A.A.
Geoecological state of water reservoirs situated near the Pechenganikel Plant
The analysis of the mechanism of some water objects contamination by the most toxiferous pollutants has been executed. The powder-gas emissions and sewage disposals of the open joint-stock company "Kola GMK" are main reasons of pollution. The dynamics of the pollutants content changes in the water of water objects during peak loads (the 70-80s of the XX century) and nowadays has been considered in the paper. The analysis of the basic flows of pollutants in the general scheme of technogenic load has been executed, and the nature of their frame change has been established. In order to supply the required quality of the consumed water the possibility of some underground sources use has been analyzed.
(in Russian, стр.9, fig. 5, tables. 1, ref 12, Adobe PDF, Adobe PDF 0 Kb)
Vol. 11 (2008 year), No. 3
Dauvalter V.A., Khloptseva E.V.
On hydrological and hydrochemical features of lakes of the Bolshezemelskaya Tundra
Dust emissions of heavy metals and wastewater from melting furnaces, slime pits, tailing dumps, and mines of the Pechenganikel Plant are main sources of increased concentrations of Ni, Cu, Co and Zn in the water column and the top layers of sediments of lakes close to the sources. The sediments in lakes located 40 km farther south of the Pechenganikel Plant are contaminated by these heavy metals only slightly. Increased concentrations of high-toxic chalcophile elements (Cd, Hg, Pb and As) have been recorded in the upper layers of the sediments in almost all investigated lakes.
(in Russian, стр.8, fig. 5, tables. 3, ref 13, Adobe PDF, Adobe PDF 0 Kb)
Vol. 11 (2008 year), No. 3
Dauvalter V.A., Yashchishina S.I.
The chalcophile elements in water and sediments of the lake Umbozero
Researches of hydrological and hydrochemical features of lakes of four river watersheds of the Bolshezemelskaya Tundra (Ortina, Neruta, Kolva and More-U) have been carried out. The oil and gas exploration and production are intensively conducted on the Bolshezemelskaya Tundra territory. According to the origin of hollows three types of lakes have been distinguished – glacial, flood-land and thermokarst. Thermokarst lakes are characterized by the minimal average values of water pH, mineralization and contents of the basic ions (except for Na+ and Cl-), and also the maximal average concentration of nutrients, organic material and almost all microelements. Contents of Fe, Cu, Mn, Al, and oil hydrocarbons in water of practically all the investigated lakes have exceeded values of maximum permissible fishery limits, that is basically connected with the development of the oil-and-gas industry in this region.
(in Russian, стр.8, fig. 7, tables. 2, ref 11, Adobe PDF, Adobe PDF 0 Kb)
Vol. 12 (2009 year), No. 3
Dauvalter V.A., Kashulin N.A., Sandimirov S.S., Ratkin N.E.
Evaluation of heavy metals (Ni and Cu) balance of the water-shed area of subarctic lake (case study of the Chunozero Lake)
The typical area with widespread rocks of the "gabbro" mineral association (Pl+Amp) within the Fedorova Tundra intrusive has been studied. It has been shown that "gabbro" is a result of autometamorphic reworking of rocks with the three-mineral gabbronoritic association – Pl+Opx+Cpx.
(in Russian, стр.9, fig. 7, tables. 2, ref 22, Adobe PDF, Adobe PDF 0 Kb)
Vol. 15 (2012 year), No. 1
Dauvalter V.A., Kashulin N.A.
Forecasting of long-term changes of freshwater regional systems of fishery in Arctic
Researches of ecological status of lakes of Northwest of the Murmansk region and frontier areas of Norway and Finland have been carried out. Despite of decrease of emissions and drainages of polluting substances by the "Pechenganickel" Company for last 20 years the tendency of amplification of anthropogenic loading on watersheds of lakes has been revealed. The high degree of accumulation of heavy metals in terrestrial and aquatic ecosystems and the length of their self-cleaning have led to the prediction: an intense flow of heavy metals in the water will continue even if a sharp decrease or complete cessation of hazardous substances' emissions in the environment take place. These emissions will negatively affect on reproduction of fish stocks.
(in Russian, стр.10, fig. 4, tables. 0, ref 26, Adobe PDF, Adobe PDF 0 Kb)
Vol. 16 (2013 year), No. 1
Kashulin N.A., Dauvalter V.A., Denisov D.B., Valkova S.A., Vandysh O.I., Terent'ev P.M., Kashulin A.N.
Some aspects of current state of freshwater resources in the Murmansk region
Aspects of reducing the resource potential of the surface waters of the Murmansk region in the global climate change and the environment and their irrational use have been considered. Increase of aquatic toxicity, radical restructuring of the structural and functional characteristics of aquatic communities, changes in trophic status of lakes, reducing the stability of freshwater ecosystems, increasing the risk of catastrophic degradation have been shown. Taking into account the regional peculiarities some indicators of the surface waters quality of the Murmansk region have been proposed.
(in Russian, стр.10, fig. 4, tables. 5, ref 13, Adobe PDF, Adobe PDF 0 Kb)
Vol. 16 (2013 year), No. 3
Yugai V.S., Dauvalter V.A., Kashulin N.A.
Concentrations of bioavailable forms of metal compounds in bottom sediments of lakes and the enrichment factor as attributes of reservoirs' ecological situation (by the example of Murmansk region lake
Concentrations of Al, Fe, Sr, Zn, Cu and Ni bioavailable forms in bottom sediments (BS) of lakes of the Murmansk region have been studied. The investigated lakes (the Bolshoy Vudjavr, Malyi Vudjavr, Nyudjavr and the Guba Belaya of the lake Bolshaya Imandra) belong to the catchment area of the Bolshaya Imandra and are influenced by human impact. The highest percentage of bioavailable forms most of metals has been found in BS of the lake Nyudjavr. According to the enrichment factors of elements and Risk Assessment Code the most dangerous ecological situation has been defined for the lake Nyudjavr.
(in Russian, стр.10, fig. 2, tables. 3, ref 27, Adobe PDF, Adobe PDF 0 Kb)