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.

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 Estimation of pollution level of lake Yalpuh as an object of fishing purpose

2018 ◽  
pp. 133-139
Author(s):  
A.V. Chugai ◽  
О.V. Derevenska
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Quality Indicators ◽  
Lake Water ◽  
Agricultural Sector ◽  
Maximum Level ◽  
Pollution Level ◽  
Mineral Fertilizers ◽  
Quality Class

The work offers estimation of Lake Yalpuh's water quality for a long period as a fishery object. The preliminary analysis of the dynamics of water quality indicators change showed that there was a decrease of concentrations of almost all quality indicators during the period of the study (2003 - 2017). According to the results of the estimation, the water quality of Lake Yalpuh in the top section was characterized by the "very dirty" category, the quality class was marked as IVc-IVd. Most often such indicators as dry residue, magnesium, chlorides, sulfates were taken as limiting indicators of pollution. During the research the quality of lake water was did not change significantly. The maximum level of pollution was observed in 2004. The water of the lake at the water intake section was also characterized by the "very dirty" category, the quality class was marked as IVb - IVd. Most often such indicators as magnesium and sulfates were taken as limiting indicators of pollution. During the period of research there was a tendency towards a decrease of the lake's level of water pollution. The maximum level was observed in 2003 – 2004. The waters of the lake in the 13th km section was characterized by the "dirty" (quality class ІІІa-ІІІb) and "very dirty" (quality class IVa-IVc) categories. Most often such indicators as magnesium and sulfates were taken as indicators of limiting pollution. Significant fluctuations of the level of the lake water pollution were observed. The maximum level was observed in 2004. The general analysis of the dynamics of change of the combinatorial index of water pollution in Yalpuh Lake at three sections for 2003 - 2017 showed that the maximum level of water pollution in the lake was observed at the first section (top), the minimum – at the 13th km section. There is a tendency towards decrease of the value of the combinatorial index of pollution. Virtually the entire territory of the Yalpuh River Basin is located at the southern part of Moldova where the state of wastewater treatment is unsatisfactory. Therefore, the level of pollution in the lake often exceeds the permissible standards. In recent years, due to decrease mineral fertilizers and pesticides use in Moldova's agricultural sector, the situation improved though.

scholarly journals ANALISIS KUALITAS DAN STRATEGI PENGENDALIAN PENCEMARAN AIR KALI SURABAYA

2014 ◽  
Vol 14 (2) ◽  
pp. 90-98 ◽  
Author(s):  
Ali Masduqi ◽  
Adi Trisnawati
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
River Water ◽  
Pollution Control ◽  
Water Quality Parameter ◽  
Pollution Level ◽  
Social Aspect ◽  
Index Method ◽  
Water Pollution Control ◽  
Quality Status

Sebagian besar limbah cair hasil dari kegiatan manusia dibuang ke saluran. Sekitar 60% pencemaran KaliSurabaya berasal dari limbah domestik (Fatnasari dan Hermana, 2010). Padahal air Kali Surabaya memasoksekitar 96% kebutuhan air baku Perusahaan Daerah Air Minum (PDAM) Kota Surabaya (Herera dkk, 2013).Penelitian ini bertujuan untuk mengidentifikasi tingkat pencemaran dan menentukan prioritas strategipengendalian pencemaran air Kali Surabaya menggunakan AHP (Analitycal Hierarchy Processes).Pengumpulan data sekunder berupa data kualitas air Kali Surabaya yang terdiri dari temperatur, TSS, pH,BOD, COD, DO, nitrat, amonia, kromium, tembaga, nitrit, minyak, deterjen, fenol, total coli, dan faecal coliyang dibandingkan dengan baku mutu air kelas 2 berdasarkan Peraturan Pemerintah nomor 82 tahun 2001.Kemudian dilakukan penentuan status mutu air Kali Surabaya menggunakan metode indeks pencemaranberdasarkan Keputusan Menteri Lingkungan Hidup Nomor 115 tahun 2003. Analisis Strategi pengendalianpencemaran air Kali Surabaya didapat setelah dilakukan pembagian kuesioner kepada Badan LingkunganHidup Provinsi Jawa Timur, Dinas Pekerjaan Umum Pengairan, Perum Jasa Tirta, Dinas Perindustrian danPerdagangan, PDAM dan Tokoh Masyarakat. Hasil penelitian menunjukkan bahwa parameter pencemar airKali Surabaya adalah TSS, BOD, DO, nitrit, minyak, dan fenol. Selain itu, status mutu air Kali Surabayatermasuk tercemar ringan. Hasil running prgram AHP diketahui bahwa strategi pengendalian pencemaran airKali Surabaya lebih menitik beratkan pada ketegasan dalam menaati peraturan perundangan yang berlaku. The Surabaya River’s main problem currently was the wastewater resulted from human activities mostly being discharged into the river. About 60% of Surabaya River pollution originated from domestic wastewater (Fatnasari dan Hermana, 2010). Infact, about 96% of water Perusahaan Daerah Air Minum (PDAM) Surabaya take from this river (Herera dkk, 2013). This study aims for identification of pollution level and determination of strategy priority of water pollution control in Surabaya River using Analytical Hierarchy Processes (AHP). The study was begun from secondary data collection of water quality parameter of: temperature, TSS, pH, BOD, COD, DO, nitrate, nitrite, ammonia, chromium, copper, oil, detergent, phenol, total coli and faecal coli. The data would be compared with stream standard. Then quality status of Surabaya River water was determined by using pollution index method according to Ministry of Environment Decree N0. 115/2003. The analysis of strategy to control Surabaya River water was done by questionnaire and direct interview methods to Badan Lingkungan Hidup (BLH) of East Java Province, Dinas Pekerjaan Umum Pengairan, Perum Jasa Tirta I, Dinas Perindustrian dan Perdagangan, PDAM and several affectional peoples in society. The result of study shows that the polluting parameters of water in Surabaya River were TSS, BOD, DO, nitrite, oil and phenol. The water quality status of Surabaya River is categorized as low polluted. From the result of AHP the strategy of water pollution control in Surabaya River should be focused on social aspect which more focused firmness in keeping the existing regulations

scholarly journals Space–time analysis of the hydrochemical composition and pollution of water in the Northern Dvina basin

2019 ◽  
Vol 46 (2) ◽  
pp. 149-160
Author(s):  
R. G. Dzhamalov ◽  
A. A. Mironenko ◽  
K. G. Myagkova ◽  
O. S. Reshetnyak ◽  
T. I. Safronova
Keyword(s):  
Water Quality ◽  
Maximum Permissible Concentration ◽  
Petroleum Products ◽  
Organic Substances ◽  
Time Analysis ◽  
Iron Compounds ◽  
Zinc Compounds ◽  
Northern Dvina Basin ◽  
Hydrochemical Composition

The dynamics of water quality along the Northern Dvina River is considered within the context of anthropogenic impact. In general, the waters of the river are characterized as very polluted. Cases of high and extremely high levels of water pollution in various locations have been considered. Organic substances, iron compounds, copper, and zinc are relatively common pollutants. Long-term average volumes of inflow of certain pollutants along the length of the river exceed the maximum permissible concentration by 2 to 5 times. A tendency toward slightly improved water quality downstream with decreasing amounts of petroleum products and zinc compounds was revealed also.

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 Physicochemical Parameters of Gomati River at Lucknow in Uttar Pradesh (India)

2021 ◽  
Vol 9 (VII) ◽  
pp. 875-886
Author(s):  
Azad Kannaujiya
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
River Water ◽  
Industrial Effluent ◽  
Oxygen Demand ◽  
Total Hardness ◽  
Domestic Waste ◽  
Aquatic Life ◽  
Gomati River ◽  
The Impact

Gomati River originate from Madhoganj Tanda village in Pilibhit district, U.P. it passes through the district of Shahjahanpur, kheri, Hardoi, Sitapur, Janpur and ultimately merge in Ganga. River water is significant for every living organism as well as aquatic life. Water pollution is a major global problem. Modernization and urbanization have polluted the river water and degraded the status. All over the world we are seeing that drain is the main source of water pollution especially for rivers flowing within the city. This drain generally carries industrial effluent, domestic waste, sewage and medicinal waste resulting in poor water quality. Gomati River receives industrial as well as domestic waste from various drains of Lucknow city. As Gomati river is the only source of surface water near the communities. A total 20 parameters namely Temperature, pH, Turbidity, Conductivity, Total dissolved solids (TDS), Total suspended solids (TSS), Total solids (TS), Dissolved oxygen (DO), Biological oxygen demand (BOD) Chemical oxygen demand (COD), Alkalinity, Total hardness, Calcium as ca, Magnesium as Mg, Chloride, Fluoride, Sulphate as So4, Nickel as Ni, Lead as Pb, and Zinc as Zn where analysed and their variation is discussed to obtain the impact of effluents on water quality. From the result it was found higher than the permissible limit of WHO and BIS.

Water Quality of Lake Iskanderkul and Its Tributaries

2020 ◽  
Vol 6 (2) ◽  
pp. 79-88
Author(s):  
Z.O. Normakhmedova ◽  
◽  
A.V. Mitusov
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Chemical Composition ◽  
Fish Farming ◽  
Natural Phenomena ◽  
Change Dynamics ◽  
Chemical Composition Of Water ◽  
Study Results ◽  
Copper Zinc

This article presents the study results of the change dynamics in the chemical composition of water in Lake Iskanderkul and the rivers flowing into it, as well as the comparison of water quality in the water bodies of the Iskanderkul Basin and several mid-stream tributaries of the Zarafshan River. It was established that the chemical composition of water in Lake Iskanderkul and its tributaries meets the requirements of the corresponding state standard (GOST 2874-82 “Drinking Water”). However, in terms of dissolved oxygen, copper, zinc, lead and iron the water in Lake Iskanderkul does not satisfy fish farming requirements. The main water pollution sources in the area include such natural phenomena as floods, avalanches, mudslides, and rock dissolution.

scholarly journals Low cost adsorbent for mitigation of water pollution caused by tannery effluents at Hazaribagh

2016 ◽  
Vol 51 (3) ◽  
pp. 215-220
Author(s):  
A Mizan ◽  
FT Zohra ◽  
S Ahmed ◽  
M Nurnabi ◽  
MZ Alam
Keyword(s):  
Water Pollution ◽  
Activated Carbon ◽  
River Water ◽  
Low Cost ◽  
Polluted Water ◽  
Pollution Level ◽  
Oxide Content ◽  
Tannery Effluents ◽  
Appropriate Treatment ◽  
Buriganga River

Tanneries at Hazaribagh use a large number of chemicals during processing and discharge their effluents to the river Buriganga without appropriate treatment and aggravate its pollution level. This study focuses on a plausible way for the abatement of pollution level of Buriganga river water using low cost adsorbent. Activated carbon prepared from coconut shell was used as a low cost adsorbent. The samples were collected from three different points of the river at three different layers from the surface of water. The collected samples were passed through the activated carbon and a remarkable amount of pollutants were found to be adsorbed. TSS, TDS, BOD5, COD and chromic oxide content of polluted water were reduced significantly.Bangladesh J. Sci. Ind. Res. 51(3), 215-220, 2016

scholarly journals Assessment of Cau River water quality assessment using a combination of water quality and pollution indices

2020 ◽  
Vol 69 (2) ◽  
pp. 160-172 ◽  
Author(s):  
Cao Truong Son ◽  
Nguyen Thị Huong Giang ◽  
Trieu Phuong Thao ◽  
Nguyen Hai Nui ◽  
Nguyen Thanh Lam ◽  
...  
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
River Water ◽  
Water Quality Index ◽  
Quality Index ◽  
Water Status ◽  
Pollution Index ◽  
River Water Quality ◽  
Quality Analysis ◽  
Pollution Indices

Abstract This research aims at using a combined water quality index (WQI) and pollution index (PI) to assess and characterize river water quality of Cau River which is one of the longest rivers in the north of Vietnam. Five different water quality and water pollution indices were used including the Water Quality Index (WQI), Comprehensive Pollution Index (CPI), Organic Pollution Index (OPI), Eutrophication Index (EI), and Trace Metal Pollution Index (TPI). The combined water pollution indices show more serious pollution towards the river downstream. In particular, CPI and OPI reveal a high risk of eutrophication. Cluster analysis was applied to classify water monitoring points into different quality groups in order to provide a better understanding of the water status in the river. This study indicates that a combined water quality analysis could be an option for decision making water use purposes while its single index shows the current situation of water quality.

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