Biogeochemical monitoring of terricones of Central Donbass, screening of 2023

Dogadkin, D.; Safonov, A.; Danilova, V.; Degtyarev, A.

Авторы: Dogadkin Dmitry, Safonov Andrei, Danilova Valentina, Degtyarev Alexander
Сборник: GREEN ECONOMY AND ADAPTATION OF INDUSTRY TO CLIMATE CHANGES
Тезисы
Год издания: 2024
Место издания: Naučno-stručno društvo za zaštitu životne sredine Srbije ECOLOGICA Белград. Сербия
Первая страница: 52
Последняя страница: 52
Аннотация: Terricones are formed by the wastes remaining after the coal mining. The agglomerationof the Donetsk-Makeevka system comprises 250 terricones. All they areimportant components of landscapes and provide a peculiar geochemical environmentfor the existence and development of living organisms. In spite of the long-lastingindustrial history of Central Donbass, detailed biogeochemical studies did not involvethe analysis of many toxic elements. At the same time, indicator biogeochemistryserves as an efficient tool for the ecological assessment of anthropogenic impact (V.V.Ermakov., S.F. Tyutikov, V.A. Safonov, 2018, – Biogeochemical indication of microelementhoses).In September, 2023, seven model objects (terricones) were chosen for collecting theplant material and subsequent ingredient analysis. To unify experiment, samples of onespecies, Phleum pratense L. (aboveground vegetative biomass), were analyzed. Thisspecies has a wide ecological range and is often found at all monitoring points. Thecontents of trace elements in the plants were analyzed using inductively coupledplasma mass spectrometry at the Laboratory of Environmental Biogeochemistry (Li,Be, B, Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Rb, Sr, Y, Zr, Nb, Mo, Cd, Sn,Sb, Te, Cs, Ba, La, Hg, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, W,Re, Tl, Pb, Bi, Th, U).Among the technophile elements, the high migration ability was revealed for followingelements: Cr, Co, Ni, Cu, Zn, Mo, Cd, Nd, Pb.The terricones are arranged in order of increasing accumulation index in plants:Tsentralno-Zavodskaya mine; Zaperevalnaya mine; Svyato-Serafimovskaya mine;mine No. 6/14 Berestovskaya, Ganzovka, Horned waste heap; Gorky mine; mine No.1-1 bis; waste heap of the mine named after. Kalinina.Analysis of element concentrations (Li, Ti, V, Cr, Co, Ni, Cu, Zn, Ga, Ge, Se, Rb, Sr,Y, Zr, Nb, Mo, Cd, Sb, Cs, La, Hg, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb, W, Tl, Pb,Bi, Th, U) revealed differentiation by a factor of 3-10…27 times, which highlighted theneed for detailed monitoring study in the region. Theoretically, it was assumed thatbluegrass representatives have high resistance and do not accumulate toxic elementsin high concentrations. However, in practice it turned out that individual elements havehigh concentrations in plant tissues.Based on the geochemical contrast indices (compared to regional background), it wasestablished that a zone of direct negative impact depends on the size of the coal minewaste and rock toxicity, but is no less than 170 m perpendicularly away from theterricone base.
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