Ecological Systems and Devices Annotation << Back Influence of some physical and chemical parameters of river systems with different level of anthropogenous load of toxicity of heavy metals for hydrobionts (on an example of ions of copper (II)) O.A. Zavaltzeva L.V. Konovalova L.R. Nazmutdinova V.V. Svetuhin Some aspects of pollution of surface water by heavy metals on an example of ions of Cu2+ are discussed. Results of researches of distribution of ions of copper between various components of water ecosystems (water, ground deposits, bodies and fabrics of hydrobionts) are given. Influence of physical and chemical and hydrochemical parameters of water systems (the temperature, the dissolved oxygen, рН, rigidity and an alkalinity of water, chelating agents) on the maintenance of a toxic (ionic) form of copper in the water environment is established. Key words: water ecosystems; hydrobionts; toxicity; heavy metals; physical and chemical factors of the water environment. Contacts: E-mail: Z.Olga1979@mail.ru Pp. 46-51.