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Information × Registration Number 0207U002707, 0102U000859 , R & D reports Title The study of regularities formation of contemparary ecological-toxicological state of the aquatic ecosystems in the urbanized territories and prognosing of then hjssible changes. popup.stage_title Head Arsan Orest Michailovich, Доктор біологічних наук Registration Date 09-02-2007 Organization Institute of Hydrobiology of National Academy of Ukraine popup.description2 The content of toxic substences differing their chemical nature, including chlorine organic pesticides ( DDT and hexachlorane), oil products, phenols, surfactants, and nitrogen compaunds, was determined in components of the studied aquatic ecosystems. The toxicity of the water and bottom sediments of the studied water bodies was assessed using invertebrates. A degree of water bodies contamination by various toxicants, regularities of the formation of their modern ecological and toxicological state, and also the role of urban territories, including cities, in this process were esteblished on the basis of the obtained results. Prediction of possible changes and measurements on the improvement of the ecological and toxicological state of the studiedaquatic ecosystems are discussed. The procedure of the assessment of the degree of water contamination by the ions of heavy metals (cooper and manganese) elaborated.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close