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Water quality of the urban rivers become a critical issue in some regions of Russia including Kaliningrad region. Since the processes of development have affected already existing urban industrial sites in a number of cities in the region and lead to formation of the new, certain risks have arisen for rivers flowing through the territory of new industrial clusters. In this regard, it was estimated the ecological condition of the rivers in the area of industrial load on the following indicators: 1) assessing of the...

The paper discusses the geochemical forms of some trace elements (As, Cu, Zn, Cr, Pb) which were identified in bottom sediments of rivers in different landscape conditions. Sediment types were divided into three groups in depending on the lithology and organic matter content: sandy and sandy-loam, typical for the northern part of the Semba Peninsula; silty-sand and loamy sediments with low (up to 7%) content organic matter (Warmia Upland); loams with high (up to 12%) content of organic matter (Polesskaya Lowland, ...