About the article
G.N. Ivanov, I.V. Krivenko, M.A. Smirnova, S.R. Ispiryan
It is noted that one of the most important indicators of an effective and reliable assessment of the ecological state of a water body is the content of heavy metals in its bottom sediments containing complete geochemical information about the evolution of a water body. The results of the analysis of samples of bottom sediments taken in the Upper Volga lakes and the Ivankovsky reservoir are presented. It is concluded that the composition of the deposits under consideration indicates the presence of various zones corresponding to the level of pollution and the peculiarities of the formation of the composition of these deposits. Three geographical zones on the territory of the Upper Volga are distinguished, characterized by a different (in terms of the content of heavy metals and toxic substances in bottom sediments) ecological state. It is emphasized that on the basis of verified information about the ecological state of the water body, its competent operation is possible.
state of the water body, bottom sediments, heavy metals, pollution degree of water bodies