Accumulation and vertical distribution of heavy metals in sapropel of Gryaznoe Lake (Medvezh'egorsk district, Republic of Karelia)
Journal Title: Вестник МГТУ - Year 2017, Vol 20, Issue 1
Abstract
The results of studying sapropel sediments and clay underlying sapropel of Gryaznoe Lake (the Medvezh'egorsk district, Republic of Karelia) have been considered. Analysis of the small stock published literature and fund sources on reserves and quality of sapropel of this region gives an indication of the importance of studying this type of natural resources. This research focuses on studying heavy metal content in the sapropel to assess the ecological status of the water body and the prospect of using it sapropel deposits for practical purposes. The modern precision methods of research material have been used. The chemical analysis of the sediments of Gryaznoe Lake has been measured using X-ray fluorescence spectrometer ARL ADVANT'X and mass spectrometer XSeries-2 ICP-MS, and the particle-size distribution of the lake sediments has been determined using the multifunction particles' analyzer LS13 Series 320. Thus the results of studying particle-size distribution and content of the major components of Gryaznoe Lake as well as basic correlation patterns calculated from the data have been given. The studied sediments' column of this lake is 3,4 m, where the thickness of the sapropel layer is 3,1 m. The content of organic substance of sapropel of Gryaznoe Lake is from 55,2 to 70,2 %. According to the literature the studied sapropel sediments comply for the type of reddish-brown sapropels widespread in Karelia and suitable to various kinds of practical use. The content of heavy metals in entire thickness of sapropel of thelake does not exceed the established norms. A comparison of levels of heavy metals' accumulation in the sediments of Gryaznoe Lake and Lamba Lake located within the city of Petrozavodsk has been carried out.The negative impact of human activities on the urban areason the deterioration of useful properties of sapropel deposits of small Karelian lakes has been clearly illustrated.
Authors and Affiliations
Z. I. Slukovskii, A. S. Medvedev, T. P. Bubnova, E. V. Siroezhko
Keywords
Related Articles
- EP ID EP216714
- DOI 10.21443/1560-9278-2017-20-1/2-177-188
- Views 132
- Downloads 0
Viability of the culture of Bifidobacterium bifidum immobilized by microencapsulation in dairy drink and the simulated gastrointestinal liquids
The existing technologies of the enriched dairy drinks assume enrichment of a product by live microorganisms, so-called probiotics, generally lactobacilli and bifidobacteria. However, the viability of probiotics and qual...
Factor analysis of ways to activate using the urban passenger motor transport
The deterioration in the quality of transport services to the population with simultaneous increasing the number of motor vehicles leads to aggravation of the accumulated problems in the sphere of passenger transport. Th...
Comparative analysis of the quality of drinking tap water in some areas of the Murmansk region
The present work describes the microbiological research of drinking tap water quality of some settlements in the Murmansk region. The samples of drinking tap water have been selected and the microbiological indicators of...
Change of physical activity of the grey seal when exposed to the magnetic field with frequencies of 2, 18 and 36 Hz for 1–4 hours
The results of studies of motor activity of the grey seal when exposed to magnetic fields with frequencies equal to 2, 18 and 36 Hz for 1–4 hours have been presented. The data have been obtained using the methods of cont...
The stability of pigments in the thalli and extracts of the Barents Sea fucus algae
Fucus algae of the Barents Sea are a promising source of biologically active substances (BAS), including carotenoid and chlorophyll pigments. The main direction of processing these types of brown algae is aimed at obtain...