The impact of urban areas on the water quality gradient along a lowland river

Glińska-Lewczuk, Katarzyna; Gołaś, Iwona; Koć, J.; Gotkowska-Płachta, Anna; Harnisz, Monika; Rochwerger, A.

doi:10.1007/s10661-016-5638-z

Cited by 73 publications

(34 citation statements)

References 39 publications

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“…It should be emphasized that the decomposition of organic substances of the high proteins content (presence of TOC and Kjeldahl nitrogen) and phosphates, may cause the low concentrations of oxygen in water thus the presence of foam on the water surface, for example near the mouth of Stream, below the cascade. The obtained values of nutrients indicators were similar to those investigated in the Łyna River [22], but much more lower than in results of studies of Kazi et al (2009) of the Manchar Lake [23].…”

Section: Discussionsupporting

confidence: 74%

The water quality of streams located in large urban agglomeration, case study of the SłuŻewiecki Stream

2018

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The quality assessment of watercourse, located in a highly urbanized area was the goal of research. The Służewiecki Stream, which flows in the southern part of the capital city of Warsaw is the subject of study. The aim of the research was to determine the tendency of the water quality changes in the Służewiecki Stream, flowing in the highly urbanized area and being a sink of the non-point and industry sources of pollutions as well as the surface runoffs which comes from its catchment. The field research was conducted along the entire length of the stream in 2015 and 2016. The water samples were collected monthly from a depth to 20 cm. Water quality tests were carried out in accordance with the valid analytical methods. The obtained results point to poor water quality. Therefore it can be conducted that the development and use of the direct catchment is the one of main factors affecting the water quality in Służewiecki Stream. The tributaries, often not inventoried, from built-up, populated areas, are the most polluted. Tributaries contain large amount of organic compounds and nutrients.

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Section: Discussionsupporting

confidence: 74%

The water quality of streams located in large urban agglomeration, case study of the SłuŻewiecki Stream

2018

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“…It is expected that an increase in the monthly rainfall would result in an increased total nitrogen concentration, but not because the component is supplied in this way. Rather, because intense precipitation results in an increase in the water level and the river flow [30], and it also results in the leaching of components from the catchment area [31]. The low water states in the lake and in the stream bed are the cause of the accumulation of nitrate nitrogen in water [32].…”

Section: Discussionmentioning

confidence: 99%

The Functioning of a Water Body Within a Fluvio-Lacustrine System as an Effect of Excessive Nitrogen Loading—The Case of Lake Symsar and its Drainage Area (Northeastern Poland)

Kuriata-Potasznik

2018

Water

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Generally, in water ecosystems, it is assumed that rivers play a transport role. In turn, lakes have accumulation properties. However, in fluvio-lacustrine systems, each water body located on a river track can disrupt naturally occurring processes. One such process is the nitrogen cycle. An analysis of the nitrogen cycle, at both the global and local levels, is of extreme significance in view of the progressive degradation of aquatic ecosystems. In this study, we attempted to show that the specific properties of reservoirs located in river–lake systems contribute to an adequate reaction of these reservoirs to situations involving an excessive pollution load. Despite the intensive exchange of water in lakes, they were mainly shown to have an accumulation function. In particular, in those located in the lower part of the system, the total nitrogen load transported outside the example reservoir decreased by 4.3%. The role of these reservoirs depends on the morphometric, hydrologic, and meteorological conditions. The actual loading of the water body was shown to be more than double the permitted critical loading. The creation of conditions similar to those occurring in river–lake systems by, for example, delaying the outflow of water, may favor the protection of surface water from the last element of the system, because this limits the transport of pollutants. This study of the functioning and evolution of lakes’ fluvio-lacustrine systems, including the balance of the nutrient load, enables the prediction of the aquatic ecosystem’s responses in the future and their changes.

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“…In reservoirs influenced by hydroelectric buildings the number of ruderal species increases and the number of stress-tolerant and competitive species diminishes. This means that in such waters human influence is visible, ruderal plants are flourishing in highly transformed areas, which are often urbanized [23][24][25][26].…”

Section: Survey Of Literature On the Subjectmentioning

confidence: 99%

Application of Macrophytes to the Assessment and Classification of Ecological Status above and below the Barrage with Hydroelectric Buildings

Tomczyk

Wiatkowski

Gruss

2019

Water

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The key goal of the Water Framework Directive is to achieve a good ecological status in water bodies. The ecological status is mainly determined by the biological elements, which are a very good indicator of the changes taking place in water environments. Thus, this article focuses on the analysis of different methods of assessment of the ecological status of water bodies based on macrophytes used in selected countries in the European Union (the Macrophyte Index for Rivers (MMOR)—Poland; the Mean Trophic Rank (MTR)—Ireland; the Trophic Index of Macrophytes (TIM)—Bavaria, Germany; the Bulgarian Reference Index of Macrophytes (RI-BG)—Bulgaria). Three research sections have been selected for research on the river Ślęza: The reference section, the section above the barrage and the section below the barrage. The analysis carried out revealed considerable similarity between the results obtained by all these methods—the differences were at most by one class of ecological status (and the analysis of sums of Wilcoxon’s ranks revealed that there were no differences between the results obtained using different methods, i.e., p = 0.860). With respect to surface waters, investigation of biological elements is important because it allows one to retrace the past and foresee the future based on the past and present trends in the changes occurring in the species diversity and structure of not only macrophytes, but also other groups of organisms. Further action is required that would determine the scope of influence of barrages with hydroelectric buildings on the environment (in the case of the investigated barrage this influence is negative).

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The impact of urban areas on the water quality gradient along a lowland river

Cited by 73 publications

References 39 publications

The water quality of streams located in large urban agglomeration, case study of the SłuŻewiecki Stream

The water quality of streams located in large urban agglomeration, case study of the SłuŻewiecki Stream

The Functioning of a Water Body Within a Fluvio-Lacustrine System as an Effect of Excessive Nitrogen Loading—The Case of Lake Symsar and its Drainage Area (Northeastern Poland)

Application of Macrophytes to the Assessment and Classification of Ecological Status above and below the Barrage with Hydroelectric Buildings

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