scholarly journals Assessment of the water pollution level and the environmental status of rivers in the Siverskyi Donets basin by BOD5

2020 ◽  
pp. 91-101
Author(s):  
N. S. Loboda ◽  
І. V. Katynska ◽  
О. V. Smalii
Keyword(s):  
Water Quality ◽  
River Water ◽  
Catchment Area ◽  
Donets Basin ◽  
Pollution Level ◽  
Early 21St Century ◽  
Main River ◽  
Environmental Status ◽  
The City ◽  
Hydrochemical Index

The paper topicality consists in the necessity for determination of the environmental status of the rivers in the Siverskyi Donets Basin and assessment of the possibilities for them to achieve ‘good environmental status’ under the modern climatic conditions and the anthropogenic load. Siverskyi Donets is the main river in the Eastern Ukraine. There are large industrial zones at the water catchment area. Among them, there are the Donetsk Coal Basin and the industrial complexes within the City of Kharkiv, which have exerted influence on surface water quality for decades. A method for assessment of the pollution level and the environmental status of waters by the hydrochemical index of BOD5 (biochemical oxygen demand for 5 days) is used in the paper. The paper is aimed at identification of the main trends in water quality changes by hydrochemical index of BOD5. The object of research is a pollution of the rivers at the Siverskyi Donets Basin by industrial, municipal and mine wastewaters. The subject of research is an assessment of water qualitative status by BOD5. The hydrochemical observation data for 7 gauges at the main river and 7 tributaries for the period of 1990-2015 were used in the paper. The major attention is focused on the most polluted rivers in the Eastern Ukraine: the Udy and the Kryvyi Torets. The quality of the Udy River water is largely determined by the municipal wastewater from Kharkiv. The Kryvyi Torets River belongs to the Donbas rivers, where pollution by mine water and wastewater from industrial enterprises is significant. Pollution levels, environmental status and saprobity were determined by the average annual indices of BOD5. Empirical probabilities for occurrence of a certain pollution parameter at various gauges were calculated for comparative analysis. It is found that a BOD5 downward trend has been prevalent on the rivers at the Siverskyi Donets catchment area in the early 21st century. The highest BOD5 values were observed on the Donbas tributaries and the Udy River (downstream from the City of Kharkiv), as well as upstream and downstream from Lysychansk, and the lowest ones were observed on the Oskil River. It is also revealed that in the early 21st century, the main river water has a ‘threshold’ environmental status (β-mesosaprobic zone), except for the Lysychansk gauge, where the status is ‘irreversibly altered’ owing to the inflow of polluted water from Donbas rivers into the Siverskyi Donets. Research into the Udy River water quality upstream and downstream from the industrial city of Kharkiv has shown that the water in the upper reaches of this river is classified as ‘clean’ and ‘moderately polluted’, and the environmental status may become ‘good’ in the future. Downstream from the city, the water is mostly ‘dirty’, and the environmental status is ‘irreversibly altered’, which corresponds to the α-mesosaprobic zone. For the Kryvyi Torets River (the Donbas Region), owing to the impact of organic pollution, the environmental status is defined as ‘threshold’, ‘irreversibly altered’ and it has begun to deteriorate in recent years. To improve the environmental status of the Donbas rivers, the reduction in discharges of untreated municipal and industrial wastewater into surface watercourses, as well as the construction of state-of-the-art sewage treatment plants are necessary.

scholarly journals Long-Term River Water Quality Trends and Pollution Source Apportionment in Taiwan

Water ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1394 ◽  
Author(s):  
Marsha Putri ◽  
Chao-Hsun Lou ◽  
Mat Syai’in ◽  
Shang-Hsin Ou ◽  
Yu-Chun Wang
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Heavy Metal ◽  
Cluster Analysis ◽  
River Water ◽  
Principal Component ◽  
Pollution Level ◽  
Metal Levels ◽  
Metal Monitoring

The application of multivariate statistical techniques including cluster analysis and principal component analysis-multiple linear regression (PCA-MLR) was successfully used to classify the river pollution level in Taiwan and identify possible pollution sources. Water quality and heavy metal monitoring data from the Taiwan Environmental Protection Administration (EPA) was evaluated for 14 major rivers in four regions of Taiwan with the Erren River classified as the most polluted river in the country. Biochemical oxygen demand (6.1 ± 2.38), ammonia (3.48 ± 3.23), and total phosphate (0.65 ± 0.38) mg/L concentration in this river was the highest of the 14 rivers evaluated. In addition, heavy metal levels in the following rivers exceeded the Taiwan EPA standard limit (lead: 0.01, copper: 0.03, and manganese: 0.03) mg/L concentration: lead-in the Dongshan (0.02 ± 0.09), Jhuoshuei (0.03 ± 0.03), and Xinhuwei Rivers (0.02 ± 0.02) mg/L; copper: in the Dahan (0.036 ± 0.097), Laojie (0.06 ± 1.77), and Erren Rivers are (0.05 ± 0.158) mg/L; manganese: in all rivers. A total 72% of the water pollution in the Erren River was estimated to originate from industrial sources, 16% from domestic black water, and 12% from natural sources and runoff from other tributaries. Our research demonstrated that applying PCA-MLR and cluster analysis on long-term monitoring water quality would provide integrated information for river water pollution management and future policy making.

scholarly journals ANALISIS KUALITAS AIR SUNGAI SARIO KECAMATAN SARIO MANADO SULAWESI UTARA

2016 ◽  
Vol 16 (1) ◽  
pp. 19
Author(s):  
Gorby Corneles Tarima ◽  
Jemmy Abidjulu ◽  
Harry S.J. Koleangan
Keyword(s):  
Water Quality ◽  
River Water ◽  
Chemical Properties ◽  
Quality Standard ◽  
River Water Quality ◽  
Water Quality Standard ◽  
Community Activities ◽  
North Sulawesi ◽  
Physical And Chemical ◽  
The City

ANALISIS KUALITAS AIR SUNGAI SARIO KECAMATAN SARIO MANADO  SULAWESI UTARAABSTRAK Penelitian ini dilakukan untuk menganalisis kualitas air sungai Sario berdasarkan sifat fisika dan kimia sesuai dengan PP No 82 Tahun 2001. Penelitian dilakukan di laboratorium Baristand Industri Manado pada bulan November 2015, dengan 4 sampel air yang diambil pada 4 titik dari hulu sampai hilir sungai Sario Kota Manado menggunakan 7 parameter yaitu kekeruhan, pH, nitat, nitrit, BOD, COD dan DO. Hasil penelitian ini menunjukkan bahwa kualitas air sungai Sario yang sesuai dengan ambang baku mutu air berdasarkan PP No. 82 Tahun 2001 hanyalah pada bagian hulu sampai tengah Sungai sebelum memasuki wilayah Kota Manado, sedangkan pada sekitaran hilir sungai Sario telah tercemar yang berhubungan dengan aktivitas masyarakat dengan diindikasikan berdasarkan konsentrasi BOD, COD dan DO yang buruk dan tidak sesuai dengan ambang baku mutu air berdasarkan PP No. 82/2001. Kata kunci : Kualitas Air, Sungai Sario   ANALYSIS OF RIVER WATER QUALITY SARIO DISTRICT MANADO  NORTH SULAWESI ABSTRACT This study was conducted to analyze the Sario river water quality based on physical and chemical properties in accordance with PP No. 82 of 2001. The study was conducted in laboratory Baristand Industry Manado in November 2015, with four water samples taken at 4 points from upstream to downstream Sario City Manado using 7 parameters: turbidity, pH, nitat, nitrite, BOD, COD and DO.  The results of this study indicate that the water quality in accordance with the Sario river water quality standard threshold under PP No. 82 of 2001 only on the upstream side to the middle of the river before entering the city of Manado, whereas the downstream Area Sario river has been polluted related community activities to be indicated by the concentration of BOD, COD and DO poor and not in accordance with the water quality standard threshold based PP No. 82 of 2001. Keywords: Water Quality, River Sario

scholarly journals Analysis of The Impact of Industrial Activities Towards River Vacancy Viewed from BODS, CODS, and TSS Using The QUAL2KW Software Method Approach (Case Study: Klampok River, Semarang District)

2020 ◽  
Vol 202 ◽  
pp. 04008
Author(s):  
Nurandani Hardyanti ◽  
Winardi D Nugraha ◽  
Vito Edgar S B
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
River Water ◽  
Catchment Area ◽  
Industrial Sector ◽  
Industrial Activities ◽  
The Impact ◽  
Method Approach

The industrial sector is one of the important sector in supporting the development of a region. Utilization of land around the river that is used for industrial activities will affect the quality of river water. The river can be polluted by waste personinating from industries that operating around the river. The catchment area that used for industry, agriculture, urban development, and the use of land for making roads (gravel or footpaths) can affect the flow of surface water and sediments that it brings to the river. Waste generated from industrial activities can pollute rivers which are a source of water for daily needs and affect the development of biota in them. This can affect river water quality

scholarly journals ENVIRONMENTAL ASSESSMENT OF WATER QUALITY IN THE PRUT RIVER IN THE UPPER REACHES

2019 ◽  
Vol 19 ◽  
pp. 108-114
Author(s):  
B. Boychuk ◽  
A. Kuzyk ◽  
L. Sysa
Keyword(s):  
Water Quality ◽  
River Water ◽  
Water Samples ◽  
Laboratory Research ◽  
Anthropogenic Pressure ◽  
Ecological Index ◽  
The Village ◽  
The City ◽  
Prut River

Abstract. Summarizing the scientific publications and production reports of enterprises that studied the environmental status of the Prut River in the last decades, as well as relevant reports in the periodical press and other media, it has been found that the quality of its water in the upper reaches is significantly deteriorating. The purpose of this article was to assess the quality of water in the Prut River in the upper flow according to various methods (including the complex of environmental indexes) to determine the degree of its pollution. The article presents the results of calculations of the complex ecological index (Ie) for assessing the water quality of the Prut river in the vicinity of the city of Yaremche. To establish sources of pollution of this river, an experimental study of the physical and chemical parameters of its water was carried out. A series of water samples from the Prut River in the area from the village Dora (suburb of Yaremche). upstream to the village Tatariv is studied laboratoryally. Samples were selected at six points of observation. The studies were conducted in two seasons: fall (september) and winter (january). The main pollutants and their concentrations in the selected samples are determined. Modern laboratory techniques and equipment are used for laboratory research. On the basis of laboratory examination of water samples from the river Prut in the upper reaches (the outskirts of the city of Yaremche) it was established that the water in this area is sufficiently clean; excess MPC value is not observed. An exception may be only a sample of water within the city of Yaremche, where there are increased concentrations of phosphates. It is also shown that winter water samples contain slightly more pollutants (including biogenic ions) than autumn. These facts may also be partly explained by the increase in airborne acid oxide emissions and their interaction with river water. According to the results of calculating the complex ecological index it was established that the Prut River water in the studied area belongs to the 2nd class of quality (the state is good). Separate samples from the control section within the city of Yaremche showed an increased value of the complex ecological index (Ie is 3.21 and 3.36 for the summer and winter series, respectively). The reason for this increase in the index is the pollution of the Prut River in the studied area due to the increase in anthropogenic pressure on it over the past years.

scholarly journals ENVIRONMENTAL ASSESSMENT OF WATER QUALITY IN THE ONEGO LAKE URBAN TRIBUTARY BY CHEMICAL INDICATORS

2021 ◽  
Vol 26 (3) ◽  
pp. 75-84
Author(s):  
E. V. Tekanova ◽  
◽  
E. M. Makarova ◽  
N. M. Kalinkina ◽  
◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Urban Areas ◽  
Oxygen Demand ◽  
Total Iron ◽  
Oil Products ◽  
Water Color ◽  
Chemical Indicators ◽  
Maximum Permissible Concentrations ◽  
The City

Introduction. The Lososinka River is an urban tributary of Lake Onego, the lower reaches of which flow through the territory of Petrozavodsk city, receiving untreated drains of the city’s storm sewers. The river enters the Petrozavodsk Bay of Lake Onego, which is used as a source of public drinking water supply in the city. Methods. During the 2015 open water period, the oxygen concentration, total iron, color, pH, total suspended matter, biochemical oxygen demand (BOD5), content of oil products, and dichromate chemical oxygen demand were measured by standard methods in the water of the background and urban areas of the Lososinka River. Results. In the river water, high values of water color (132 mg/l Cr-Co), total iron (1.5 mg/l), dichromate chemical oxygen demand (23 mgO/l) were revealed, which is associated with the geochemical peculiarities of the surface waters in Karelia, enriched in the humic matter. Seasonal increases in the concentrations of these indicators were associated with floods. The oxygen saturation of the water reached 90% due to the fast current and riffles. The indicators of water pollution include total phosphorous (60 μg/l), mineral phosphorous (40 μg/l), BOD5 (1.5 mgO2/l), suspended matter (25.5 mg/l), and content of oil products (0.02 mg/l). Seasonal changes in these indicators were not associated with the hydrological regime of the river. In the storm sewers of the city, the maximum permissible concentrations for BOD5 are exceeded by 4 times, and for oil products — by 15 times. The Kruskal–Wallis test showed that all the studied chemical indicators in the urban and background areas of the river do not have significant differences. Conclusion. Water quality in the Lososinka River is considered satisfactory in terms of most of the studied parameters. According to the total iron content, the water is characterized as polluted, and according to water color, the river water is classified as dirty. The maximum permissible concentrations for total iron in the background and urban areas of the river were exceeded by 10 times. The standards for water quality adopted in the Russian Federation and the maximum permissible concentrations for total iron and water color are inapplicable for the water bodies in Karelia with high background values of these indicators. The trophic status of the river corresponds to the eutrophic state. Good saturation of the river water with oxygen hinders water pollution in the city territory due to self-purification processes.

scholarly journals ASSESSMENT OF RIVER WATER QUALITY IN THE CITY BY HYDROCHEMICAL INDICES (THE OKHTA RIVER, ST. PETERSBURG)

2021 ◽  
pp. 72
Author(s):  
Анна Михайловна Белякова ◽  
Надежда Викторовна Зуева ◽  
Anna Belyakova ◽  
Nadezhda Zueva
Keyword(s):  
Water Quality ◽  
River Water ◽  
River Water Quality ◽  
The City

scholarly journals Variability of the Warta River water discharge in the city of Poznań as influenced by the Jeziorsko reservoir / Zmienność przepływów rzeki Warty w Poznaniu w aspekcie eksploatacji zbiornika Jeziorsko

2015 ◽  
Vol 41 (3) ◽  
pp. 53-59 ◽  
Author(s):  
Antoni T. Miler
Keyword(s):  
Water Quality ◽  
Catchment Area ◽  
Water Discharge ◽  
Flood Wave ◽  
Short Term ◽  
Data Set ◽  
Gradual Improvement ◽  
Storage Volume ◽  
The World ◽  
The City

Abstract The data set of the Warta discharges in Poznań (Poland) is one of the largest in the world as the daily observations of river stages have been conducted without interruptions since January, 1st, 1822. The Poznań measurement profile is situated in the 243.6 km and closes the catchment area of approximately 25 thousand square kilometers. The data used as the input in the paper were daily values of the Warta discharges in Poznań in the years 1822-2012. The climate in Poznań, a city situated in the centre of the Wielkopolska (Greater Poland) region, is relatively stable (Miler et al. 2005). Also the Warta River runoff shows considerable stability, especially in terms of mean annual values. Short-term trends are random in character. It was found that the Jeziorsko reservoir (total storage volume of 203 000 000 m3, officially put to use on September, 9th, 1987) significantly reduced daily variability of the flows and reduced peak discharge of the flood wave in the summer of 1997 on the Warta River at Poznań. The calculated periodogram for mean annual discharges of the Warta River in Poznań shows that there are main periodicities of ca. 10 year lengths. The research of the Provincial Inspectorate for Environmental Protection (WIOŚ) in Poznań shows a gradual improvement of water quality in the Warta River in Poznań.

scholarly journals EVALUATION OF POLLUTION LEVEL CAUSED BY DOMESTIC EFLUENT IN THE POTY RIVER – TERESINA PI - BRAZIL

2017 ◽  
Vol 37 (1) ◽  
pp. 51
Author(s):  
Izabele Folha Damasceno ◽  
Vivane Lopes Leal ◽  
Ronaldo Cunha Coelho ◽  
Carla Verônica Rodarte de Moura ◽  
Edmilson Miranda de Moura
Keyword(s):  
River Water ◽  
Water Samples ◽  
The Body ◽  
Pollution Level ◽  
Chemical Parameters ◽  
River Water Samples ◽  
Physico Chemical ◽  
The City

This article reports on the level of contamination of effluents, sediments and water in the Poty River, within the city of Teresina. The samples were collected in the months of September 2009, December 2009 and March 2010. The results of some physico-chemical parameters investigated, as well as the concentrations of lead, copper and nickel found in the river water samples showed that the body of water in the Poty River is unsuitable for use in various activities. These activities include direct recreational usage and primary irrigation of vegetables that are eaten raw as well as fruits that are eaten without removing films, among others.

scholarly journals TRENDS IN THE VARIABILITY OF THE CHEMICAL COMPOSITION AND WATER POLLUTION LEVEL IN THE KUBAN RIVER

2021 ◽  
Vol 26 (1) ◽  
pp. 30-40
Author(s):  
O. S. Reshetnyak ◽  
◽  
R. S. Komarov ◽  
◽  
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Chemical Composition ◽  
River Water ◽  
Petroleum Products ◽  
Pollution Level ◽  
Organic Substances ◽  
Quality Class ◽  
Number Of Components ◽  
Kuban River

Introduction. The paper explores the long-term spatial and temporal variability of the chemical composition and water quality in the Kuban River. Methods. To study the variability of the chemical composition of river water, we analyzed data from systematic observations over the concentrations of major ions, biogenic and organic substances, petroleum products and heavy metals from 2010 to 2017. To describe the variability of water quality, we used such indicators as water quality class, water pollution level, and characteristic pollutants. Results. It is shown that the spatial change in the chemical composition is uneven — a number of components in the water have low concentrations in the upper reaches, increasing in the lower part of the river. Others are characterized by high concentrations in the middle reaches, followed by a decrease towards the mouth. Over time, the change in the concentrations of chlorides, sulfates, organic substances and petroleum products increases. As for the content of nitrates, a slight decrease was detected in its variability. For the remaining chemicals, there were no clear trends. We established that in most cases the water in the Kuban River can be classified as polluted and very polluted (water quality class 3). We also found that the nature of river water pollution regarding a number of components is stable. Conclusion. In modern conditions of sharp climate changes and anthropogenic impact, the identified features of the chemical composition and trends in water quality variability of the Kuban River are of great practical importance and can be used in the development of environmentally sound recommendations for improving water quality and the state of water ecosystems in the river basin.

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