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THE DEGREE OF BORON CONTAMINATION OF THE UNDERGROUND AND SURFACE WATER OF THE ILEK RIVER VALLEY
Abstract
The article is a review of numerous studies devoted to the problem of identifying the main sources of pollution of the Ilek River and the underground water of its valley. The main sources of pollution are: the old sludge collector; new sludge collector; industrial site, soils polluted by the Alga Chemical Factory and dust from the dried surface of the sludge accumulators and the slag pipelines emergency leakage. It is established that in the sludge accumulators area the river drains heavily underground water contaminated with boron. A consequence of this is the pollution of the river and the Aktobe reservoir. The main ways of entering boron into groundwater are filtration through the bottom of the old sludge accumulator, infiltration into the aquifer of contaminants washed off by snowmelt waters and storm runoff from the side of the listed sources. The analysis of these sources allowed forming ideas about the nature of the distribution of contaminated groundwater, the dynamics of pollution levels of groundwater and surface water, and environmental risks for the population of the region. Pollution of underground and surface waters by boron of the valley of the river Ilek пїЅ sources of water supply in the Aktobe region - influences the social and economic development of the region and the formation of an ecological situation in the territory of the Russian Federation. The river Ilek is transboundary, it flows into the Ural River and eventually the polluted waters enter the Caspian Sea, to the spawning grounds of sturgeon.
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References7
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