scholarly journals The diversity, abundance and seasonal distribution of planktonic microcrustacean (Copepoda, Cladocera) in Kayalıköy Reservoir (Kırklareli/Turkey)

2021 ◽  
Vol 38 (1) ◽  
pp. 21-29
Author(s):  
Hüseyin Güher ◽  
Burak Öterler
Keyword(s):  
Qualitative Evaluation ◽  
Environmental Parameters ◽  
Common Species ◽  
Seasonal Distribution ◽  
Water Levels ◽  
Water Quality Standards ◽  
Chydorus Sphaericus ◽  
Quality Of Water ◽  
Daphnia Cucullata

This study was carried out to determine the diversity, abundance and seasonal distribution of planktonic microcrustaceans (Cladocera, Copepoda) in Kayalıköy Reservoir. Cladocera and Copepoda samples were collected from May 2018 to April 2019 at three stations in the reservoir and some environmental parameters were measured. The qualitative evaluation of the samples revealed presence of 40 species, 24 from Cladocera and 16 from Copepoda, in the reservoir. The quantitative evaluation of the samples showed that 52690 ind./m³ zooplankton on average was found in the reservoir. The most common species in the reservoir were Daphnia cucullata, D. longispina, D. pulex, Bosmina longirostris and Chydorus sphaericus from Cladocera, and Arctodiaptomus wierzejskii, Acanthocyclops robustus and Thermocyclops crassus from Copepoda. According to the water quality standards, the measured values of water temperature, dissolved oxygen, sulfate, salinity and chloride indicated the first quality of water, while the light permeability, nitrite-nitrogen, nitrate-nitrogen, ortho-phosphate and chlorophyll-a values indicated the second and third quality of water levels. According to these results, we conclude that Kayalıköy Reservoir has a mesotrophic character in terms of the microcrustacean fauna and the physicochemical parameters.

Assessment of the quality of water resources in coastal urban lands of two small catchment rivers, Southwest India

2017 ◽  
Vol 28 (3) ◽  
pp. 444-459 ◽  
Author(s):  
A. Krishnakumar ◽  
Revathy Das ◽  
Saranya Puthalath
Keyword(s):  
Water Quality ◽  
Ground Water ◽  
Salinity Intrusion ◽  
Water Quality Standards ◽  
Water Quality Evaluation ◽  
Small Catchment ◽  
Content Type ◽  
Quality Of Water ◽  
Southwest India

Purpose The purpose of this paper is to assess the ground water quality and salinity issues in the fast developing coastal urban lands of two river basins of Thiruvananthapuram district, Kerala, South India. Design/methodology/approach In order to address the water quality of the basins, field sampling was conducted and the samples were analysed in the laboratory. A comparison with water quality standards was also made and the interpretations of the results were done using GIS and statistical tools. Findings The values of conductivity, chlorides and salinity show that the coastal areas of Neyyar and Karamana basins are severely affected by salinity intrusion in addition to the pollution problems. More than 90 per cent of the samples are with hardness lower than 100 mg/l. About 70 per cent of the study area is with calcium concentrations lower than 25 mg/l. The content of sulphate and magnesium in Poovar and Poonthura coastal stretches is found to be higher compared to other regions. Originality/value Since not much work has been published from the study area on these aspects, the hydrochemical characterization is a very important in deciphering the quality of ground water for its proper management. The water quality evaluation and salinity intrusion studies are very important for the future planning and development of this area.

scholarly journals The Influence of Sedimentation Ponds of the Former Soda “Solvay” Plant in Krakow on the Chemistry of the Wilga River

2021 ◽  
Vol 13 (2) ◽  
pp. 993
Author(s):  
Justyna Likus-Cieślik ◽  
Marcin Pietrzykowski
Keyword(s):  
Urban Areas ◽  
Surface Water Quality ◽  
River Ecosystem ◽  
Water Quality Standards ◽  
High Concentration ◽  
Negative Effects ◽  
Waste Production ◽  
Quality Of Water

This paper explores how the chemistry of the Wilga River is affected by the sedimentation ponds at the former Soda “Solvay” Plant in Krakow. Despite the revitalization of the sedimentation ponds about 30 years ago, the chemistry of the samples was characterized by high EC (from 845 to 3000 µS cm−1), high concentration of Cl− (up to 800 mg L−1), Ca (up to 270 mg L−1), and SO42− (up to 115 mg L−1), and a high value for Na (up to 270 mg L−1) was noted—surface water quality standards were exceeded. The effect of high mineralization by those elements, generated in wastewater during soda waste production, were noted to have seasonal and vertical variability. We concluded that, despite the industrial shutdown and revitalization processes, the drainage of industrial water can have serious and long-term negative effects on quality of water and the Wilga River ecosystem. The Wilga River is one of the most important examples of important environmental problems in urban areas.

scholarly journals Measures for Improving the Quality of Watercourses in the Impact Area of the Baia Mare Industrial Perimeter

2013 ◽  
Vol 70 (2) ◽  
pp. 403-407
Author(s):  
Oana MARE ROȘCA ◽  
Lucia MIHALESCU ◽  
Zorica VOȘGAN ◽  
Monica MARIAN
Keyword(s):  
Environmental Parameters ◽  
Industrial Area ◽  
Aquatic Communities ◽  
Aquatic Life ◽  
Local Conditions ◽  
Quality Of Water ◽  
Baia Mare ◽  
Impact Area ◽  
The Impact

The Baia Mare industrial area is located in the Baia Mare Depression (NW Romania). The main source of impact on the watercourses of the Baia Mare industrial area is the exploitation of non-ferrous ores that, over time, a number of changes generated in the environmental parameters. The main drainage axis of the above noted industrial center is formed by the Săsar River and the Firiza River. Since the response of the aquatic communities to the environmental factors best reveal the local conditions; the zoobenthos communities in 10 stations located in the Săsar basin were analyzed during 2003-2009. Contributions to improving the quality of water contaminated by the industrial effluents.    In the conditions of limiting disturbances that block the detoxification and self-purification processes, there are prerequisites for improving the quality of aquatic life.

scholarly journals Kualitas Air Sungai pada Berbagai Tipe Penutupan Lahan pada Sub-sub DAS di DAS Latuppa

2019 ◽  
Vol 11 (1) ◽  
pp. 59
Author(s):  
Fauziyah Abidin ◽  
Syamsuddin Millang ◽  
Usman Arsyad
Keyword(s):  
Water Quality ◽  
Land Cover ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Quality Of Water ◽  
Quality Water ◽  
Physical And Chemical Quality ◽  
Physical And Chemical ◽  
Better Than

Water has an important role in life. The use of water in various activities must be based on water quality which is influenced by various aspects, one of it is land cover. This study aims to determine water quality, water quality standards and the effect of land cover on water. This study took samples at six points to determine the physical and chemical quality of water. The results showed that the chemical and physical quality of water in the Latuppa watershed still met water quality standards when there was no rain. Parameters that did not meet when rain occurred in the form of turbidity, TSS, and BOD in the river water of the Latuppa watershed. Water quality of the Siguntu Sub-watershed and the Mangkaluku Sub-watershed in the Latuppa River Basin is still relatively good for the use of raw water for drinking water. The water quality in the Latuppa watershed which is covered by forest land (Siguntu Sub-watershed and Mangkaluku Sub-watershed) is better than non-forested (Rantenase Sub-watershed).

Calculating Future Levels of Nitrate in Rivers and Pumped Storage Reservoirs

1984 ◽  
Vol 16 (5-7) ◽  
pp. 635-642 ◽  
Author(s):  
A E Warn
Keyword(s):  
Water Quality ◽  
Computer Simulation ◽  
Regression Analysis ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Water Supplies ◽  
Quality Of Water ◽  
Storage Reservoirs ◽  
Pumped Storage

A method is described for calculating the effect of Water Quality Standards on the future use of water supplies drawn from rivers and impoundments. The day-to-day variations of nitrate in rivers have been modelled by Regression Analysis and these models have been used to estimate the quality of water supplies drawn from pumped storage reservoirs. Computer simulation has been used to examine ways of controlling water quality so as to comply with Water Quality Standards.

scholarly journals Physical-chemical properties of the surface water from shallow lakes of the Matita-Merhei Unit, Danube Delta, Romania: current state and environmental significance

2021 ◽  
Vol 3 (2) ◽  
pp. 23-31
Author(s):  
Irina Catianis ◽  
◽  
Dumitru Grosu ◽  
Adriana Maria Constantinescu ◽  
Laura Tiron Dutu ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Environmental Parameters ◽  
Biological Indicators ◽  
Repeated Measurements ◽  
Danube Delta ◽  
Potential Health ◽  
Local Conditions ◽  
Physical Chemical ◽  
Quality Of Water

This study aimed to assess the water quality of certain lakes (Bogdaproste, Trei Ozere and Radacinos) belonging to the Danube Delta, Romania. Deltaic ecosystems are subject to natural and man-made environmental stressors. If in the past these ecosystems were largely threatened by eutrophication and organic/inorganic pollution, nowadays, we must focus on hydro morphological impact. This refers to the physical character and water content of the aquatic environment, impoundment (dams and flood gate), channelization and embankments, as well as clog/siltation of lakes. Environmental parameters are those physical, chemical and biological indicators used to characterize a freshwater body, and, which vary in time and space. In this regard, 44 water samples were collected in the dry season from the three lakes, for analysis of physical-chemical quality indicators. A series of physical (T, EC, TDS, turbidity, TSS, transparency) and chemical parameters (pH, DO, nutrients, SiO2, TOC, SO42-, ORP, technophilic elements) were considered. The results obtained in the physical-chemical analyses revealed that the majority of parameters were found in line with enforcing environmental regulations. Despite that, P-PO43- and Cd concentration results of some samples were found above certain permissible limits set by the normative. Probably, these inadvertences can be associated with local conditions of the transitional deltaic environment. Further analysis is required conducting repeated measurements with the same question, meaning a routine monitoring, especially P-PO43- and Cd. Finally, it was concluded that the results of this study showed a good quality of water in investigated lakes that did not pose potential health and environmental problems related to the biota.

Reflecting the Sky in Water

2017 ◽  
Vol 3 (1) ◽  
pp. 112-126 ◽  
Author(s):  
Ilaria Cristofaro
Keyword(s):  
The Unconscious ◽  
Related Case ◽  
Quality Of Water ◽  
Fluid Properties ◽  
Phenomenological Perspective ◽  
Auto Ethnography ◽  
The Individual ◽  
Artificial Water ◽  
Land Water

From a phenomenological perspective, the reflective quality of water has a visually dramatic impact, especially when combined with the light of celestial phenomena. However, the possible presence of water as a means for reflecting the sky is often undervalued when interpreting archaeoastronomical sites. From artificial water spaces, such as ditches, huacas and wells to natural ones such as rivers, lakes and puddles, water spaces add a layer of interacting reflections to landscapes. In the cosmological understanding of skyscapes and waterscapes, a cross-cultural metaphorical association between water spaces and the underworld is often revealed. In this research, water-skyscapes are explored through the practice of auto-ethnography and reflexive phenomenology. The mirroring of the sky in water opens up themes such as the continuity, delimitation and manipulation of sky phenomena on land: water spaces act as a continuation of the sky on earth; depending on water spaces’ spatial extension, selected celestial phenomena can be periodically reflected within architectures, so as to make the heavenly dimension easily accessible and a possible object of manipulation. Water-skyscapes appear as specular worlds, where water spaces are assumed to be doorways to the inner reality of the unconscious. The fluid properties of water have the visual effect of dissipating borders, of merging shapes, and, therefore, of dissolving identities; in the inner landscape, this process may represent symbolic death experiences and rituals of initiation, where the annihilation of the individual allows the creative process of a new life cycle. These contextually generalisable results aim to inspire new perspectives on sky-and-water related case studies and give value to the practice of reflexive phenomenology as crucial method of research.

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