Scholarly record
PHYSICAL AND CHEMICAL AND HYDROLOGICAL CONDITIONS AS A FACTOR INFLUENCING THE DISTRIBUTION AND BEHAVIOR OF MERCURY IN THE SMALL RIVERS OF THE SUBARCTIC AREA OF THE EUROPEAN TERRITORY OF RUSSIA
Abstract
The increased vulnerability of the aquatic landscapes of Subarctic of the European part of Russia to anthropogenic impact is a consequence of natural conditions and its geographical location. In this regard, the study of small rivers and their catchments which are remote from the direct influence of the industrial and residential zones is of particular interest to researchers, since they can be considered as background areas of the Subarctic. One of these rivers is Kyanda flowing into the Onega Bay of the White Sea. In the course of expeditionary research conducted in the warm season in the river Kyanda and its tributaries, unique data on the mercury content and the values of the basic physical and chemical parameters (salinity, temperature, dissolved oxygen content, pH and Eh) of the water in river and sea conditions was obtained. In this connection, the authors of this paper identified and studied the main factors and processes that determine the physical and chemical environment and influencing the spatial (along the transect пїЅriver пїЅ mouth seashore пїЅ bayпїЅ) and temporary (in different phases of the tide) distribution of mercury. Statistical analysis between the total mercury content, its dissolved and suspended migration forms and the basic physical and chemical parameters confirmed that the heterogeneity in the distribution of pH values and salinity has a significant effect on the mercury migration ability. These parameters are also a cause of the prevalence of particular inorganic mercury compounds in water. The high Pearson correlation coefficient between the various forms of the mercury migration content and pH values (and salinity to a greater extent) is confirmed this effect. The predominant inorganic mercury form in the water of the river Kyanda is mercury (II) chloride (HgCl2), which was revealed as a fact. An increase in the occurrence of mercury (II) tetrachloride пїЅ ([HgCl4]2-) to 80% was observed in the maximum tidal phase (high water). It was confirmed accordingly that the prevailing hydrological conditions is a significant factor in determining the behavior of mercury in the river Kyanda.
Publication Impact Profile
Publication details
References11
Alkire M.B., Jacobson A.D., Lehn G.O., Macdonald R.W. Small rivers could have big impact on Arctic Ocean // Eos. 2015. Vol. 96, no 16, pp. 12-16.
Korobov V.B. Investigations of the regime of the estuarine areas of the rivers of the White Sea // Geology of seas and oceans: Proceedings of XXI International Conference on Marine Geology. Moscow: GEOS. 2015. Vol. III, pp. 199-203.
Hao Z.L., Wang F., Yang H.Z. Baseline values for heavy metals in soils on Ny-Alesund, Spitsbergen Island, Arctic: The extent of anthropogenic pollution // Advanced Materials Research, vol. 779, pp. 1260-1265, 2013.
Iglovsky S., Kriauchiunas V., Shakhova E., Malkov A. Heavy metals in the Arctic soils of the Western coast of Svalbard Archipelago (In Russian) // Human Ecology, № 9, pp. 8-13, 2014.
Lukyanov S.A., Shvartsman Yu.G. Rain-size composition of bottom sediments in the estuarine zones of the minor rivers of the Onega Bay of the White Sea // Vestnik of Northern (Arctic) Federal University. Editorial Panel of Natural Sciences. №2, 2013, pp. 28-34.
Fedorov Yu., A. Ovsepyan, V. Savitskiy, A. Zimovets, I. Dotsenko Physical and chemical characteristics of water in the mixing zone: River Kyanda – Onega Bay of the White Sea // Conference Proceedings of 16th International Multidisciplinary Scientific GeoConference, SGEM 2016. – Bulgaria. – 2016. – Book 3. – Vol. 1. – pp. 553 – 560. DOI: 10.5593/SGEM2016/B31/S12.072
Fedorov Yu.A., Zimovets A.A., Ovsepyan A.E., Khromov M.I. Integrated ecological-geochemical expedition in the Northern Dvina mouth area in the spring and winter 2008 season, Izvestiya vuzov. Severo-Kavkazskii region. Natural sciences, Russia, issue 1, pp. 110-114, 2009
RD 52.24.479-95. Metodika vypolneniya izmereniy massovoy kontsentratsii rtuti v vodakh metodom atomnoy absorbtsii v kholodnom pare [The method of measurements of mass concentration of mercury in waters by atomic absorption cold vapor]. M: Rosgidromet. 1995. 25 p. [in Russian]
Oceanographic table. State Oceanographic Institute. USSR, L., Gidrometeoizdat, 1975.
Semenova A.D. Guidelines for chemical analysis of surface waters USSR, L., Gidrometeoizdat, 1977, 354 p.
Lockwood R.A., Chen K.Y. Adsorption of Hg (II) by hydrous manganese oxides. Environmental Science and technology. – 1973. – № 7. – P. 1028 – 1034.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
