The ecological conditions of water ecosystems in Krasnoselkupsky district are subject to natural and technogenic impact, with a considerable increase of the latter over the past 20 years. The rivers flowing near or through the residential areas highly exposed to industrial impact - construction at water protection zones, oil pollution, contamination with heavy metals and other specific substances. The impact of superficial drain from the settlements on the river bed is sufficient, resulting in technogenesis of geomorphological processes of the river network. The researchers conducted an integrated environmental study of the Taz River within the villages of Krasnoselkup and Tolka in the spring and summer of 2012. The study was aimed at evaluating the impact of surface superficial drain from residential areas on the ecological state of the water body. Bottom sediment is a good sorbent material able to concentrate most pollutants and contaminants. All insoluble and partially soluble compounds are mainly concentrated in the sediments. The most dangerous pollutants in sediments are oil and heavy metals. The researchers have assessed the contaminated sites based on the obtained concentrations of oil in the samples. As a result, the sediments in water bodies of Krasnoselkup district are classified as moderately polluted. The results revealed negative impact of water flow in the studied areas in each case, as well as enabled to assess economic and other impact on the water bodies. These trends and patterns will form the basis of a forecast model, which will allow the researchers to quickly assess the dynamics of negative processes, as well as make management decisions aimed, primarily, at reducing the negative anthropogenic impact on water bodies.
reka Taz, zagryaznenie, donnye otlozheniya, selitebnaya territoriya
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