Assessment of Actual Water Quality and Sedimentological Conditions of the Corbu I Lake, Western Black Sea Coast

Ispas, Bogdan-Adrian; GeoEcoMar, Dimitrie Onciul Street Geoecology –; Duţu, Laura Tiron; Grosu, Dumitru; Caraivan, Glicherie

doi:10.26471/cjees/2020/015/147

Cited by 5 publications

(4 citation statements)

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“…Another paper described the assessment of actual water quality and sedimentological conditions of the Corbu lake, Western Black Sea coast. The ecological status of this lake was found to be from good to weak classes for nitrites, ammonium and phosphates, moderate for sulphates and weak for detergents 32 .…”

Section: Resultsmentioning

confidence: 89%

Evaluation of the quality of lentic ecosystems in Romania by a GIS based WRASTIC model

Niculae

Avram

Corpade

et al. 2021

Sci Rep

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Globally, ecosystems are constantly degrading as a result of pressures derived from human activities and climate change. For working towards the restoration of the natural balance, it is necessary to evaluate the deviations induced in the ecosystems, to identify where the changes took place, to know what is their amplitude and to decide where it is possible to get involved. Many aquatic ecosystems are depreciated and their restoration is often difficult. Development of appropriate assessment methodologies will improve the decision-making process in public policies for environmental protection and conservation of biodiversity. This study presents an assessment of the degradation level of lentic ecosystems in Romania, performed through a multi-criteria analysis. An extension of the WRASTIC index (Wastewater-Recreational-Agricultural-Size-Transportations-Indutrial-Cover) was generated, namely WRASTIC-HI. The new index was obtained by including values derived from the Potential Pollutant Load index. The analysis showed that 13% of the evaluated lakes are natural, 56.5% are semi-degraded and 30.5% are degraded. The proposed methodology allows to determine the spatial distribution of the degradation sources and to calculate the corresponding indicators. The results obtained provide a useful tool for diagnostic step that can be used as a cornerstone to further identification of environmental conflicts and proposals for improvement of the ecological status of the lentic ecosystems.

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Section: Resultsmentioning

confidence: 89%

Evaluation of the quality of lentic ecosystems in Romania by a GIS based WRASTIC model

Niculae

Avram

Corpade

et al. 2021

Sci Rep

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“…It was concluded that synergic effects between geographical and eutrophication variables induced 82.95% of the community variance. Ispas et al found in 2020, through their own measurements, that the lakes associated with the Danube Delta did not comply with the maximum permitted limits in terms of nitrogen and phosphorus content, sulfates, and detergents, which highlighted the more pronounced incidence of eutrophication [50]. In this regard, the authors recommended the more efficient management of water resources, with the controlling of eutrophication factors, reducing the anthropogenic impact on the environment, and the systematic monitoring of water quality.…”

Section: Resultsmentioning

confidence: 99%

“…Based on the chemical and biological analysis and fishery investigations, recommendations are provided for Lake Tas , aul rehabilitation. y n n [50] Danube Delta 1…”

Section: Measurements ** Namementioning

confidence: 99%

Overview of the Eutrophication in Romanian Lakes and Reservoirs

Dumitran,

Vuta,

Popa

2024

Limnological Review

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In this paper, attention is drawn to the deterioration of Romanian surface water ecosystems due to eutrophication, an important environmental issue both at national and international levels. An inventory of existing studies dealing with the issue of the eutrophication of lakes and reservoirs in Romania is made, aiming to identify the main problems Romania is facing in monitoring, classifying, and managing eutrophic ecosystems. On Web of Science, the keyword “Eutrophication”, with “Romania” as country/region, leads to 50 publications, which are analyzed in this review. The number of articles found does not reflect the real environmental issue represented by eutrophic lakes and reservoirs in Romania. At a national level, only 126 lakes and reservoirs have been monitored and assessed between 2018 and 2020, in terms of ecological status/ecological potential. Thus, at a global evaluation, 77% of natural lakes and 33% of artificial ones do not reach the quality objectives. The results of this study showed that the frequency of measurements taken by water quality indicators is not the strongest point of measurement campaigns, as it is not sufficient for the diagnosis of eutrophic lakes, and supplementary measures must be undertaken to better understand and mitigate this phenomenon.

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“…Several mechanisms may be involved in the release or retention of phosphorus in the sediments, but two are most important: release of phosphorus bound onto iron dependent on redox conditions, and microbial processes (North et al, 2015). The degree of eutrophication indicates the ratio of total mineral nitrogen and total phosphorus (Ispas et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Untitled

2022

Carpathian J. Earth Environ. Sci.

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Within the Poodří nature reserve and the Odra River old parallel channel, Slaňáky, various forms of phosphorus were investigated due to increased high concentrations of total phosphorus (Ptot) in the surface water. Surface water samples were subjected to chemical analyses using absorption spectrophotometry (Ptot and P-PO4 3-) and accompanying parameters (t, O2, pH, Cond, TSS ) were measured. Next, grain size analysis of the sediment and sediment analyses using X-ray fluorescence were carried out (P, Fe, Al, Ca, Si, K, Mn, S, etc.). The seasonality of Ptot concentrations in the water was not confirmed, the reservoir behaved as a pool. The concentrations of the dissolved inorganic form P-PO4 3were low when compared to Ptot, thus suspended phosphorus prevailed. This may be related to the low depth of the given water body, where stratification does not occur in contrast to deep water bodies. However, sediment resuspension is frequent, and phosphorus largely accumulates. The concentrations of Ptot in the sediment ranged around 4900 mg/kg, where the inorganic form prevailed (87.24 -93.73 %) over the organic (6.27 -12.76 %). At the same time, the sediment samples were abundant for sand fractions (2 -0.03 mm), 47.86 -60.89 %, and finest silt and clay (< 0.063 mm), 33.07 -44.60 %.

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Assessment of Actual Water Quality and Sedimentological Conditions of the Corbu I Lake, Western Black Sea Coast

Cited by 5 publications

References 0 publications

Evaluation of the quality of lentic ecosystems in Romania by a GIS based WRASTIC model

Evaluation of the quality of lentic ecosystems in Romania by a GIS based WRASTIC model

Overview of the Eutrophication in Romanian Lakes and Reservoirs

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