“…What was noticed in recent years is the changing dynamics of pollution in surface waters, resulting from global warming, which results in more frequent droughts and floods that lead to changes in the condition of river waters and changes in pollutant concentrations (Fig. 3 ) (Dzhamalov et al, 2019 ). Fig.…”
The present paper discusses the impact of land use and seasons on the concentration of nutrients in the waters of the Utrata River (Pruszków Poviat, Mazowieckie Voivodeship) from April 2018 to March 2019. The pollution of rivers by nutrients is a major problem for society. Surface water is a source of drinking water, water used for industrial and agricultural purposes. With the increasing pollution of rivers, the purification process for these purposes becomes more expensive and more challenging. To assist in carrying out activities aimed at reducing the inflow of biogenic substances into large river systems and then down to the Baltic Sea, we analyzed the spatial and temporal dynamics of loads from the entire Utrata River catchment area. We divided the entire catchment area into three impact zones: grasslands and wastelands, urbanized areas, and agricultural land and examined changes in nutrient concentrations (total phosphorus, nitrate nitrogen, ammonium nitrogen) in each of the zones. The results were statistically processed using the 1-factor ANOVA method with the p-value of significance below 0.05. Research indicates an increase in the concentration of total phosphorus and nitrogen forms down the course of the river in urban and agricultural areas with persistently low concentrations of these biogenic substances in grasslands.
“…What was noticed in recent years is the changing dynamics of pollution in surface waters, resulting from global warming, which results in more frequent droughts and floods that lead to changes in the condition of river waters and changes in pollutant concentrations (Fig. 3 ) (Dzhamalov et al, 2019 ). Fig.…”
The present paper discusses the impact of land use and seasons on the concentration of nutrients in the waters of the Utrata River (Pruszków Poviat, Mazowieckie Voivodeship) from April 2018 to March 2019. The pollution of rivers by nutrients is a major problem for society. Surface water is a source of drinking water, water used for industrial and agricultural purposes. With the increasing pollution of rivers, the purification process for these purposes becomes more expensive and more challenging. To assist in carrying out activities aimed at reducing the inflow of biogenic substances into large river systems and then down to the Baltic Sea, we analyzed the spatial and temporal dynamics of loads from the entire Utrata River catchment area. We divided the entire catchment area into three impact zones: grasslands and wastelands, urbanized areas, and agricultural land and examined changes in nutrient concentrations (total phosphorus, nitrate nitrogen, ammonium nitrogen) in each of the zones. The results were statistically processed using the 1-factor ANOVA method with the p-value of significance below 0.05. Research indicates an increase in the concentration of total phosphorus and nitrogen forms down the course of the river in urban and agricultural areas with persistently low concentrations of these biogenic substances in grasslands.
“…For the rivers of the Central Russia, a lot of environmental risks come from an inefficient infrastructure of water supply and treatment systems, especially in urban areas, but limited availability of water quality information impedes detection of specific pollution sources and control over them [5]. The Moskva River basin is a striking example of this: multiple studies show that the Moskva River plays a major role in the pollution of the Oka and Volga rivers (including their nutrient pollution) [6][7][8], but low spatial coverage, scarcity and poor accessibility of its environmental monitoring data hinder comprehensive research.…”
An extensive study conducted during the dry summer of 2019 provided a detailed picture of the nutrient content dynamics along the Moskva River. Water sampling at 38 locations on the main river and at 17 of its tributaries revealed a manifold increase in phosphorus and nitrogen concentrations as the river crosses the Moscow metropolitan area, which can be attributed to both direct discharge of poorly treated sewage and nonpoint urban pollution. Even at the Moskva River lower reaches, where the anthropogenic pressure on the river and its tributaries is less pronounced, the inorganic nitrogen and phosphorus content remains consistently high and exceeds the environmental guidelines by up to almost 10 times. This indicates increased vulnerability of the Moskva River ecosystem during periods of low flow, which can be a major factor of eutrophication in the entire Moskva-Oka-Volga system. Comparison of our data with some archive records shows no significant improve in the nutrient pollution of the river since the 1990s, which raises further concern about the effectiveness of water quality management in Moscow urban region.
This article focuses on the research and analysis of the ecological state of the Sosna River on the Orel region territory. The article provides a description of the Sosna which is a tributary of the Don River, as natural resources exploitation object, its ecological and hydrologic peculiarities are being described. The main anthropogenic sources, exerting an impact on the ecological state of the river are being studied. The ramifications of the Sosna water pollution by industrial and agricultural enterprises as well as by the local population are being analyzed. Measures for protection and enhancement of the Sosna waters ecological state are being proposed along with those suggested within a framework of the regional ecological policy implementation.
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