REDUCTION OF INFLUENCE OF NON-FERROUS METALLURGY WASTES ON ECOLOGICAL SYSTEM | |
ArticleName | Impact of non-ferrous metallurgy on a state of Subarctic freshwater ecosystems |
ArticleAuthor | Kashulin N. A., Dauvalter V. A., Sandimirov S. S., Terentyev P. M., Denisov D. B. |
ArticleAuthorData | Institute of Industrial Ecology Problems of the Kola Science Center of the Russian Academy of Sciences (INEP KSC RAS) N. A. Kashulin, Deputy Director S. S. Sandimirov, Senior Researcher |
Abstract | For the European part of the northern territories of Russia, problem of assessing the consequences of long-term aerotechnogenic water pollution as in the impact zones of industrial enterprises as well as in background areas has become more urgent. The north-west territory of Murmansk region is exposed to serious anthropogenic impact, mainly related to the activity of the Pechenganickel Mining & Metallurgical Combine of the Kola MMC. The main pollutants are sulfur compounds and heavy metals. Ecological researches of reservoirs in a zone of influence of Pechenganickel are resulted. Change of natural geochemical cycles of elements and formation of hydrochemical anomalies in immediate proximity from pollution sources of natural waters is revealed. Long-term input of industrial sewage and atmospheric emissions has increased water mineralization, contents of the basic ions and heavy metals, and also has led to redistribution of ratio of the basic ions. Concentrations of heavy metals in surface layers of lake sediments on distance up to 30–40 km from pollution sources exceed the background values of 10–380 times. Analysis of the fish part of lakes communities located on various distances from sources of industrial pollution has revealed changes in fish populations, expressed in decrease of lifetime and growth rates of fish, rejuvenation of approaches of pubescence that is a criterion of environmental problems. |
keywords | Water ecosystems, water pollution, hydrochemical composition, sediments, heavy metals, ichthyofauna, fish pathologies, anthropogenic impact, sulfur compounds |
References | 1. Moiseenko T. I., Rodyushkin I. V., Dauvalter V. A., Kudryavtseva L. P. Formirovanie kachestva vod i donnykh otlozheniy v usloviyakh antropogennykh nagruzok na vodoemy arkticheskogo basseyna (na primere Kolskogo Severa) (Formation of water of bottom sediments in the conditions of anthropogenic pressure on reservoirs of the Arctic basin (on the example of Kola north)). Apatity, 1996. 263 p. |
Language of full-text | russian |
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