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Information × Registration Number 0213U005187, 0107U012019 , R & D reports Title The studies of biogeochemical laws in formation of the critical zones in the Black sea. popup.stage_title Head Egorov V.N., Registration Date 04-04-2013 Organization Kovalevsky Institute of biology of southern seas NAS Ukraine popup.description2 Critical areas on the content of 90Sr, 137Cs, 239-240Pu, 210Po, Aroclor 1254, Hg, ?PHB7 and ?DDT in various areas of the Black Sea and fluxes of deposition of pollutants in geological depot were defined. It was found, that over the past three decades, the Black Sea ecosystems have shifted from the regime of compensative resistant homeostasis, and restructure their structure and functions have led to increased intensity of the biogeochemical cycles of transformation of pollutants in the marine environment in accordance with the principle of Le-Chatelier. The methodology of normalization of anthropogenic impact according to the biogeochemical criterions, which based on the estimation of fluxes of pollutants deposition in bottom sediments of the investigated areas compared with the background, conditionally clean regions, was developed. It was recommended to take the decision about limitation of fluxes of mercury and polychlorinated biphenyls to levels comparable to background fluxes for the Sevastopol bays and areas of the Crimea, having high economic and recreational value. Product Description popup.authors Гулін С.Б. Полікарпов Г.Г. popup.nrat_date 2020-04-02 Close