COPPER IN COAL MINING PRODUCTS OF VIZEYSKA LVIV-VOLYN COAL BASIN MINE: ECOLOGICAL, GEOCHEMICAL AND TOXICOLOGICAL ASPECTS
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Coal producers create special natural and man-made systems, which spread over large areas and affect all components of the biosphere: living and non living, biogenic and abiogenic matters. An important aspect of such a natural and man-made system is the distribution of individual chemical elements in concentrations much higher than background values. In the ecological sense, distribution of bioavailable forms of heavy metals, that can be determined in water-soluble and acetate-ammonia extracts, is the matter of high importance.