Assessment of quality of water and sediments in small reservoirs in Southern Poland - A case study

Michalec, Bogusław; Cupak, Agnieszka

doi:10.4491/eer.2020.660

Cited by 9 publications

(9 citation statements)

References 46 publications

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“…To understand the current status of the environment and the PTE contamination in respect to the natural condition for the Lake Maracaibo, the geo-accumulation index (Igeo) was applied using the following equation [44][45][46]: (5) Where Cn is the concentration of the examined element in the surface sediment studied sample, Cbn is the geochemical background concentration of a given element and the factor 1.5 is the matrix correction factor of the background concentration due to the lithogenic effects. The background concentration data of Turekian and Wedepohl [37] and of the soils of the Zulia state (Venezuela) [38] were used for all Igeo calculations (V, Ti, Cr, Ni, Cu, Zn, As, Se, Cd, Sn, Hg and Pb).…”

Section: Geo-accumulation Indexmentioning

confidence: 99%

Ecological risk by potentially toxic elements in surface sediments of the Lake Maracaibo (Venezuela)

Marı́n

Colina

Ledo

et al. 2021

Environmental Engineering Research

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The evaluation of potential ecological risk of aquatic sediments associated with the presence of potentially toxic elements (PTE) determines its degree of danger on native biota. In this work, the potential ecological risk of V, Ti, Cr, Ni, Cu, Zn, As, Se, Cd, Sn, Hg and Pb in superficial sediments is explained in three different areas of Lake Maracaibo: El Tablazo Bay, Strait of Maracaibo and the lake itself, through a multi-guideline approach (elemental enrichment (enrichment factor, contamination degree, pollutant load index and geo-accumulation index), sediment quality guidelines and risk assessment code). The PTE levels ranged from < 0.025 to 176.722 mg·kg−1 DW, with an overall proportion of V > Ti > Pb > Zn > Cr > Cu > Ni > As > Cd > Se > Hg > Sn. The PTE concurrent effect on biota was El Tablazo Bay > lake > Strait of Maracaibo. The superficial sediments of Lake Maracaibo constitute a medium with a high potential ecological risk on estuarine biota. This is mainly due to the levels of As in El Tablazo Bay, Cd in the Strait of Maracaibo and Pb in the lake area. This represents a latent toxicity hazard for native biological communities and other associated organisms.

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Section: Geo-accumulation Indexmentioning

confidence: 99%

Ecological risk by potentially toxic elements in surface sediments of the Lake Maracaibo (Venezuela)

Marı́n

Colina

Ledo

et al. 2021

Environmental Engineering Research

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Section: Introductionmentioning

confidence: 99%

“…An accelerated reduction of the reservoir capacity in urbanized areas requires more frequent maintenance of such a reservoir. At the same time, bed sediments collected in reservoirs in urban areas are more polluted (Michalec & Cupak, 2021) than in the case of sediments from non‐urbanized areas (Bąk et al, 2014). For this reason, a reliable estimation of the amount of sediments in urban reservoirs has a direct impact on both the quality of the aquatic environment and the utilization of dredged sediments (Zhang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Estimating sediment yield from a small urban catchment of a heterogeneous structure

Krajewski,

Hejduk,

Sikorska‐Senoner

2023

Land Degrad Dev

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Small urban areas, due to their specificity (high anthroposphere, multiple forms of land use, variable drainage conditions), are often overlooked in studies on soil erosion and sediment transport that predominantly focus on a large scale. The sediment yield from such small urban areas may greatly vary depending, for example, on the state of the land development. Therefore, its proper estimation is crucial for water resources management, improving urban runoff quality or designing and maintaining local retention ponds. In this study, two different approaches were applied to estimate sediment yield from a small urban catchment of Służew Creek, located in Warsaw, Poland. While the first was based on direct hydrological measurements and field samples, the second (indirect) used various empirical formulas to predict bed load transport (local formula of Skibiński) in the stream channel and the suspended sediment delivery from the catchment (USLE equation, Build‐up/Wash‐off model). The sediment load established according to the direct approach equals 714 Mg/year, of which 83 Mg/year results from the bed load transport and 631 Mg/year comes from the suspended sediment transport. The total sediment load calculated according to the indirect approach equals 579 Mg/year. The relative difference in loads calculated with these two methods is about 20%. This paper combines various established methods into a novel composite analysis of sediment yield. The methodology presented in this study may support the estimation of sediment load in small urban catchments with a heterogenous land use structure. Hence, it may support urban planning and water resources management in such small catchments.

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“…Reservoir sedimentation is a major issue all over the world since it decreased the reservoir's original capacity, affecting drinking water supply, agriculture, hydropower, flood management, and recreational activities. The sedimentation of reservoirs is unavoidable due to a lack of reservoir management measures such as reservoir sediment routing, periodic sediment flushing, and catchment management to decrease soil erosion, and it has steadily become a major issue for many countries across the world (Adongo et al 2021;Michalec and Cupak 2021).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of reservoir sedimentation using bathymetry survey: a case study on Adebra night storage reservoir, Ethiopia

et al. 2022

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Reservoir sedimentation is a serious challenge that reduces reservoir life. Because it decreases the initial capacity of the reservoir and has an impact on drinking water supply, irrigation, and hydropower activities. Inadequate land activities and poor management techniques cause soil erosion and reduce reservoir storage capacity. As a result, accurate sediment estimation was assist in the adoption of sustainable land-use activities and best management practices that lead to effective reservoir operations. The main objective of this study was to evaluate the rate of sedimentation and remaining capacity of Adebra night storage reservoir (NSR) using a bathymetric survey and Arc-GIS 10.8. A comparison of original and current reservoir capacity was used to evaluate the quantity of sediment deposition in the reservoir. The latter was developed using Arc-GIS 10.8 and a bathymetry survey that was used to develop the TIN surface and evaluate reservoir volume. The Adebra NSR reservoir capacity was decreased by the accumulation of sedimentation from 36,902 m3 in 2012 to 27,722 m3 in 2020. The results of this study showed that the Adebra night storage reservoir had lost on average 24.8% of its capacity due to sedimentation, during 8 years of operation. The average deposition rate of sedimentation in Adebra NSR was estimated to be 1147.5 m3/year, with a loss rate of 3.1% per year. The value of sedimentation rates found in live storage of the reservoir area was 1147.5 m3/year. At the current time, the expected life of the night storage reservoir was reduced due to a lack of proper soil conservation practices in the reservoir catchment areas. In general, the study finding showed that the capacity of NSR was reduced by the accumulation of sedimentation year to year throughout the design period. Therefore, to improve the capacity of NSR should be planning and implementing different techniques of sediment control and removal, depending on the estimation of sediment production from watersheds of inlets and outlets of reservoirs.

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Assessment of quality of water and sediments in small reservoirs in Southern Poland - A case study

Cited by 9 publications

References 46 publications

Ecological risk by potentially toxic elements in surface sediments of the Lake Maracaibo (Venezuela)

Ecological risk by potentially toxic elements in surface sediments of the Lake Maracaibo (Venezuela)

Estimating sediment yield from a small urban catchment of a heterogeneous structure

Evaluation of reservoir sedimentation using bathymetry survey: a case study on Adebra night storage reservoir, Ethiopia

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