Аннотация:Biomass (EC-1 biomaterial) reduces copper (Cu) content in water: measurement using AAS.Kiryushin A.V., Tropin I.V., Ostroumov S.A.M.V.Lomonosov Moscow State University.ABSTRACT. In the authors experiments, the ability of biogenic (phytogenic) material EC-1 to decrease the copper (Cu) content in an aqueous medium was proved using the method of atomic absorption spectroscopy (AAS). This was proved in the author’s experiments under short-term incubation conditions. The results contribute to the confirmation of the theory of self-purification of water with the participation of the biota (biological community, living organisms of the ecosystem) originated by S.A. Ostroumov [22-24]. The results can be used to expand the scientific basis for water purification with the application of biotechnological approaches.KEYWORDS: copper (Cu), water quality, water purification, biogenic material, AAS;БЛАГОДАРНОСТЬ. 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