| Annotation |
Data on development by Kalguty mine of the same name rare-metal deposit is given. The main sources of mine facilities impact on the components of the natural environment have been clarified. Technogenic pollution of natural environments in the form of superimposed areas and scattering streams of elements of processed ores was revealed. Very high levels of their accumulation in river waters, high in soils, medium and low levels in bottom sediments of rivers have been established. The leading role of tailings of ore enrichment as a source of formation of aerogenic areas of pollution of snow and soil and vegetation cover has been clarified.
Three main associations of chemical elements in contaminated soils were identified: geochemically inert siderophilic (Fe, Ti, Cr, Mn, V, Co, Ni); weakly accumulating litho – and chalcophilic minor elements of ores (Pb, Zn, Li, Be); intensively accumulating ore elements (Mo, W, Cu, Bi). The tendency of increasing concentrations of ore elements in a number of natural environments: snow cover – soil – bottom sediments was established. The leading role of tailings of ore dressing in the formation of aerogenic pollution foci was revealed.
Average rates of annual elements accumulation in soils (45 %) and in bottom sediments of rivers (30 %) were calculated. The area of soil pollution at the site of the concentrator and hydro(lito)chemical flows of pollutants in the rivers Levaya Zhumaly and Zhumaly up to 5 km long have been identified. Environmental hazard classes of rocks, enrichment waste and waste water have been identified. The contribution of the elements to their toxicity was calculated. The conclusion about conditionally favorable modern geoecological situation in the area of the mine and its unfavorable level on the site of the tailings of the concentrator is made
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| References |
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