scholarly journals Assessment of the geoecological state of surface watercourses in the Slavsky district, Kaliningrad region (summer hydrological season)

2021 ◽  
Vol 21 (1) ◽  
pp. 33-43
Author(s):  
Yuri A. Spirin ◽  
◽  
Sergey I. Zotov ◽  
Keyword(s):  
Water Samples ◽  
River Network ◽  
Hydrochemical Analysis ◽  
Quality Of Water ◽  
Kaliningrad Region

The paper provides an assessment of the geoecological state of surface watercourses in the Slavsky district, Kaliningrad region in the summer hydrological season. For this purpose, the choice of watercourses for research was carried out, which, in aggregate, could characterize the river network of the Slavsky district as a whole, they were: r. Zlaya, r. Shluzovaya, r. Nemoninka and r. Osa. Water samples were taken for hydrochemical analysis and the hydrometric characteristics of the rivers were measured. The research resulted in information on the quality of water in rivers, as well as on the role of anthropogenic and natural influences on it.

scholarly journals Quality of water sources in Southwestern Uganda using the compartment bag test (CBT): a cross-sectional descriptive study

2019 ◽  
Vol 9 (4) ◽  
pp. 683-693
Author(s):  
Richard Onyuthi Apecu ◽  
Lucas Ampaire ◽  
Edgar Mugema Mulogo ◽  
Fred Norman Bagenda ◽  
Afsatou Traore ◽  
...  
Keyword(s):  
Water Samples ◽  
Water Sources ◽  
World Health ◽  
Most Probable Number ◽  
Physical Parameters ◽  
Probable Number ◽  
Gravitational Flow ◽  
Quality Of Water ◽  
Compartment Bag Test

Abstract The aim of this study was to assess the bacteriological quality of water sources in the two rural areas of Uganda using the compartment bag test (CBT). In total, 200 water samples were collected from 69 different water sources and processed within 6 h of collection. Positive and negative controls were processed each day together with water samples. Physical parameters were measured in situ. Descriptive statistics were used to generate mean, minimum, maximum, standard deviations and percentages. The results indicated that 29% of the water sources met the National Standards and World Health Organization (WHO) Guidelines for drinking water. Sixty percent of the borehole, 44% of gravitational flow taps and 14% of roof rain water met the required standards. Of the open water sources, 75% of the rivers, 50% of open channels and 43% of unprotected dug wells plus 25% of protected springs and 9% of gravitational flow schemes had most probable number counts >100 Escherichia coli/100 mL of water. Most of the water sources in the study areas were not fit for human consumption without prior treatment. The CBT was found to be robust and easy to use in all field situations. The mean physical parameters of water sources were within the acceptable limits.

scholarly journals Testing for viral material in water of public bathing areas of the Danube during summer, Vojvodina, Serbia, 2014

2016 ◽  
Vol 21 (15) ◽  
Author(s):  
Aleksandra Jovanović Galović ◽  
Sanja Bijelović ◽  
Vesna Milošević ◽  
Ivana Hrnjaković Cvjetkovic ◽  
Milka Popović ◽  
...  
Keyword(s):  
Surface Waters ◽  
Water Samples ◽  
Genetic Material ◽  
Recreational Water ◽  
Recreational Waters ◽  
Quality Of Water ◽  
Viral Indicators ◽  
Urban Wastewater Treatment ◽  
Recreational Use

From August to September 2014 a water quality study was conducted on five popular public Danube beaches in Vojvodina, Serbia. To assess the safety of Danube water for bathing, physical, chemical, bacteriological tests were performed. While many parameters for monitoring the quality of water are regulated by law, there are neither national nor international legislations addressing the presence of viruses in recreational waters. In this study, we performed analyses that surpassed national requirements, and investigated if adenovirus, enterovirus or rotavirus genetic material was present in samples of recreational water collected for quality monitoring. Of 90 water samples obtained during the study, enterovirus material was not found in any sample, but adenovirus and rotavirus genetic materials were respectively detected in 60 and 31 samples. Statistical analyses showed a significant correlation between adenovirus DNA and total coliforms in the water. Even when water samples were adequate for recreational use, adenoviruses were detected in 75% (57/76) of such samples. Our results indicate that implementation of viral indicators in recreational water might be helpful to better assess public health safety. This might be particularly relevant in areas where urban wastewater treatment is insufficient and surface waters affected by wastewater are used for recreation.

scholarly journals The impact of coal ash and slag dump on the quality of surface and ground waters - a case study

2019 ◽  
Vol 84 (5) ◽  
pp. 527-530
Author(s):  
Ivana Cipranic ◽  
Radmila Markovic ◽  
Stefan Djordjievski ◽  
Zoran Stevanovic ◽  
Marija Stevanovic
Keyword(s):  
Water Samples ◽  
Coal Ash ◽  
Negative Influence ◽  
Physical Treatment ◽  
Physical Chemical ◽  
Quality Of Water ◽  
Slag Dump ◽  
The Impact

This paper presents the assessment of the impact of coal ash and slag from the ?Maljevac? dump on the quality of water of Paleski Creek, Montenegro. The obtained results confirm the negative influence of surface and groundwater from the dump on the water from the Paleski Creek. The results obtained by testing of the water samples, collected from Paleski Creek upstream of the dump, indicate that the water is qualified to be used for drinking, after simple physical treatment and disinfection. The results obtained for the water samples collected from the Paleski creek downstream from the dump indicate that the water could be safe for drinking only after the treatment that requires an intensive physical, chemical and biological processing, including some extended treatment.

scholarly journals The role of the mahogany tree (Swietenia macrophylla King) on quantity and quality of water that fall below the canopy

2021 ◽  
Vol 918 (1) ◽  
pp. 012036
Author(s):  
M F Fadhilah ◽  
Y Hidayat ◽  
A Hadiyane
Keyword(s):  
Water Quality ◽  
Quality Measurement ◽  
Hardness Measurement ◽  
Swietenia Macrophylla ◽  
Quality Of Water ◽  
The Impact ◽  
Water Quality Measurement ◽  
Rainwater Quality

Abstract Mahogany trees (Swietenia macrophylla) are often planted in urban forests area. This shady-crowned tree has a role in controlling the quantity and quality of rainwater that falls to the ground. Mahogany trees also affect the quality of rainwater through interception, fall, and stemflow. The purpose of this research was to determine the impact of the interception process, such as throughfall and stemflow, on changes in rainwater quality of the mahogany tree. The Data that needed to be measured were tree dimension, rainfall interception, and rainwater quality. Interception measurement was performed by calculating the number of throughfall and stemflow in one month-measurement. While the measurement of rainwater quality was measured once in the laboratory. These water quality measurements include Electrical Conductivity (EC), hardness, the content of Elements Ca, Mg, Na and K, and pH concentrations. The results based on the total area of the crown showed that mahogany had an interception value of 18.088%. In the throughfall measurement, the mahogany has a throughfall of 81.799%, while the amount of the stemflow is only 0.113%. The correlation of interception values, throughfall, and stemflow with rainfall are in general positively correlated. That means the higher rainfall water will increase the number of interception, throughfall, and stemflow. The results on water quality measurement explain that Ec value in rainwater interception was increased compared to water produced from rainfall in mahogany trees. It also has the same condition in hardness measurement. In pH measurements, the interception of rainwater has less pH when compared to direct rainfall water. In addition, the content of Elements Ca, Mg, K, and Na in Stemflow and Throughfall water have more numbers than rainfall itself.

scholarly journals Kajian Tingkat Akurasi Sensor pada Rancang Bangun Alat Ukur Total Dissolved Solids (TDS) dan Tingkat Kekeruhan Air

Jurnal Fisika ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 37-46
Author(s):  
Rahmi Putri Wirman ◽  
Indrawata Wardhana ◽  
Vandri Ahmad Isnaini
Keyword(s):  
Rhodamine B ◽  
Water Samples ◽  
Total Dissolved Solids ◽  
Dissolved Solids ◽  
Quality Of Water ◽  
Accuracy Level

Total Dissolved Solids (TDS) and turbidity of water are parameters to determine the quality of water. In this research, instruments development and study of accuracy level for TDS meter and turbidimeter have been made. Instruments were made using TDS sensor and turbidity sensor that were inexpensive and available on the market. The samples used for instruments examination were water with dye (Rhodamine B) and powder of coffee as impurities. The results showed that the sensors worked properly and provided a better accuracy in measuring water samples with coffee impurities than dye impurities. The inaccuracy on the determination of water samples with dye impurities due to dye particles which have soluble properties on water and microscopic size than particles of coffee.

scholarly journals AQUIFER CHARACTERIZATION AND PHYSIOCHEMICAL ANALYSIS OF DISTRICT DERA GHAZI KHAN PUNJAB, PAKISTAN

2021 ◽  
Vol 36 (3) ◽  
pp. 47-57
Author(s):  
Waqas Shafiq ◽  
Hadayat Ullah ◽  
Muhammad Zaheer ◽  
Mubashir Mehmood ◽  
Umer Farooq ◽  
...  
Keyword(s):  
Drinking Water ◽  
Chemical Analysis ◽  
Water Samples ◽  
Groundwater Pollution ◽  
Safe Drinking Water ◽  
Aquifer Characterization ◽  
Alluvial Deposits ◽  
Quality Of Water ◽  
Salt Flats

The study area is located in the arid section of Punjab province, Pakistan. The accessibility of freshwater is the main problem in this area. The area is mainly flat and alluvial deposits are present down to 800 m. The groundwater is not fit for drinking because of its salinity. Hence, it is essential to mark the transition between fresh water and saltwater. Resistivity models were used to locate freshwater areas. The saltwater areas are between 10 and 30 m deep. Salt flats and clayrich deposits are visible on resistivity maps and were identified by low resistance values. After linking resistivity data and maps, it is determined that the south portion of the area has a freshwater aquifer, especially at a depth of 200 m. At this depth, the quality of water is very good, regardless of its mild salinity in some areas. The margin between salty and freshwater is set to no degree. This is dependent upon the recharge and usage of an aquifer. Groundwater pollution poses a severe threat to the city’s residents. Results from the physio-chemical analysis of the water samples confirm the presence of arsenic in excessive amounts in water samples and are outside the limits set by the WHO and NDWQS. Just two out of 10 samples are within the limits for safe drinking water. The results of this research are valued for groundwater management and the installation of tubular wells in freshwater areas for households and irrigation purposes.

scholarly journals COMPARATIVE ANALYSIS OF THE CHEMICAL COMPOSITION OF WATERWATER IN THE SLAVSKY DISTRICT OF THE KALININGRAD REGION BY HYDROLOGICAL SEASONS

2021 ◽  
Vol 31 (4) ◽  
pp. 425-436
Author(s):  
Yu.A. Spirin ◽  
S.I. Zotov ◽  
V.S. Taran ◽  
Yu.V. Koroleva
Keyword(s):  
Chemical Composition ◽  
Winter Season ◽  
Practical Significance ◽  
Anthropogenic Activity ◽  
Quality Of Water ◽  
Hydrochemical Data ◽  
Maximum Permissible Concentrations ◽  
Kaliningrad Region ◽  
Selection Of

The aim of the work is to research the chemical composition of surface watercourses in the Slavsky district of the Kaliningrad region in the winter hydrological season, and to compare the results with the data previously obtained by the authors for the autumn hydrological season and partly for the summer hydrological season. Watercourses and monitoring points for research have been identified: r. Zlaya, r. Shluzovaya, r. Nemoninka and r. Osa. In the winter season, water samples were taken, hydrometric characteristics were measured, and primary hydrochemical indicators were determined. On the basis of the obtained hydrochemical data, integral indicators were calculated to assess the quality of water, using combined lists of maximum permissible concentrations of pollutants. When monitoring hydrochemical indicators, it was revealed that the studied watercourses are, to one degree or another, subject to pollution. The water quality class in them varies from "moderately polluted" to "extremely dirty". When comparing the seasons, a tendency was revealed to improve the quality of water, which is associated with the water content of rivers, as well as with the cycles of natural and anthropogenic activity. The work has theoretical and practical significance. The data can participate in the planning of rational use of natural resources and the selection of measures to improve the geoecological state of the river network of the Slavsky region. The research can serve as a supplement to the formation of the general geoecological picture of the Kaliningrad region.

scholarly journals Risiko Pemanfaatan Air Baku POKMAIR Watumalang Melalui Tinjauan Cemaran Koliform

2019 ◽  
Vol 5 (2) ◽  
pp. 77-86
Author(s):  
Pujiyati Pujiyati ◽  
Prabang Setyono ◽  
Wiryanto Wiryanto
Keyword(s):  
Risk Assessment ◽  
Data Analysis ◽  
High Risk ◽  
Water Samples ◽  
Clean Water ◽  
Water Sampling ◽  
Raw Water ◽  
Water Utilization ◽  
Quality Of Water

Watumalang, Wonosobo, is a district with substantial spring utilization (60.66%). Limited management in quality of water utilization is considered a risk to health, especially from coliform contamination. The purpose of this study is to assess the risk of using raw water of POKMAIR group (spring users), specifically from the coliform aspect. The study was conducted primarily by water sampling and respondent questionnaires. Data analysis was performed descriptively and correlatively. The result shows that 71% of water samples did not meet the requirements as clean water from the coliform aspect. Utilization risk assessment shows that 37.5% of high-risk villages. Further analysis shows that the closest relationship to coliform was the ownership of sanitation facilities (r -0,381).

scholarly journals Groundwater Quality Assessment for Irrigation: Case Study in the Blinaja River Basin, Kosovo

2021 ◽  
Vol 7 (9) ◽  
pp. 1515-1528
Author(s):  
Hazir S. Çadraku
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Irrigation Water ◽  
Water Samples ◽  
Agricultural Crops ◽  
Irrigation Water Quality ◽  
Quality Of Water ◽  
Kelly’S Ratio

Groundwater is an important source for a drink and irrigation in the Blinaja river basin. Understanding knowledge of irrigation water quality is critical to the management of water for long-term productivity. Historically for this study area there is no data and information regarding the quality and use of water for irrigation needs. Therefore, there was a need to assess water quality based on data analysed from eight sampling points. The purpose of this paper is to evaluate, relying on analytical results, the quality of groundwater in the Blinaja river basin for the purpose of its use for irrigation of agricultural crops. For this purpose, in the Blinaja River Basin in different months during 2015, 2016, 2018 and 2019, 28 water samples were taken to assess the quality of groundwater for irrigation. Water samples were analysed in a laboratory for some of the key quality indicators; pH, EC, hardness (TH), Ca, Mg, Na, K, HCO3, SO4, Cl, etc. and then irrigation water quality indices were calculated such as: percentage of Na (% Na), SAR (Sodium Adsorption Ratio), PI (Permeability index), KR (Kelly's ratio), etc. The overall objective of this study was to assess the quality of water to be used by the inhabitants of the area for irrigation of agricultural crops. Analytical procedures for the laboratory determinations of water quality have been given in several publications (USDA Handbook 60 by Richards, 1954; FAO Soils Bulletin 10 by Dewis and Freitas1970; APHA 2005). Doi: 10.28991/cej-2021-03091740 Full Text: PDF

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