Application of the water quality index in the Timok River basin (Serbia)

Joksimović, Dragana Milijašević; Gavrilovic, Bojan; Obradović, Suzana Lović

doi:10.2298/ijgi180610007m

Cited by 15 publications

(12 citation statements)

References 12 publications

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“…Certain WQI scales are the result of changed water quality due tothe wastewater from human activities, industrial establishments, agricultural resources and illegal waste disposal in the basin. The computed average WQI values for the Timok River during the period of 1990-2014 showed significant oscillations in water quality and indicated high level of water pollution with organic and inorganic substances [35]. This study highlighted based on the WQI and PI that the water quality of the Auranga estuary was poor in the winter and summer seasons due to more component contamination and good water quality in the monsoon season due to more freshwater influence because of the heavy rain.…”

Section: Resultsmentioning

confidence: 76%

Assessment of Water Quality with Special Reference to Hydrochemistry: A Case Study of Auranga Estuary, Valsad, Gujarat, India

Patel¹,

Sahoo²

2022

Water Conservation - Inevitable Strategy

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An assessment of Water Quality from Auranga estuary (20°63’ N and 72°820 E) was carried out from January 2019 to December 2019. The hydro-chemical variables were analyzed for the evaluation of water quality showed fluctuation in the estuarine water seasonally. The water quality index was computed for the evaluation of water quality of Auranga estuary; to know the pollution level of water body Index for Pollution was also computed. The water quality index (WQI) was 115.97 at downstream and 85.30 at upstream that indicate poor and good water quality respectively. The Pollution Index (PI) ranges from 1.41 (Downstream) to 0.78 (Upstream) which indicate that the water is medium polluted and slightly polluted respectively. Seasonal assessment showed the discrete water quality index and pollution index based on three different seasons; during winter season WQI was 143.30 and 108.05 and PI was 1.41 and 0.97 at downstream and upstream respectively, during summer WQI was 126.73 and 106.95 and PI was 1.18 and 0.94 at downstream and upstream sites respectively and during monsoon WQI was 97.67 and 88.11 and PI was 0.88 and 0.78 at downstream and upstream sites respectively. Univariate statistical technique is attempted to explain the correlations between the variables.

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Section: Resultsmentioning

confidence: 76%

Assessment of Water Quality with Special Reference to Hydrochemistry: A Case Study of Auranga Estuary, Valsad, Gujarat, India

Patel¹,

Sahoo²

2022

Water Conservation - Inevitable Strategy

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“…Therefore, each has an assigned weight factor and an estimate of the number of points contributing to the water quality threat. By adding the products qi and wi, we come to the value of index 100 as the ideal sum of the values of all parameters (Summary of Oregon Water Quality Index Report, 1996Report, -2005Khan et al, 2005;Lumb et al, 2006;Veljković et al, 2008;Milijašević Joksimović et al, 2018;Babić et al, 2019).…”

Section: Methodology and Datamentioning

confidence: 99%

Water quality assessment of the Montenegrin part of the Lim river using the Serbian water quality index (SWQI)

Vujović¹,

Delić²,

Smolović³

2021

Zb PMF Geog inst Beograd

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The paper analyzes the water quality of the Montenegrin part of the Lim River using the Serbian Water Quality Index (SWQI) method. This method uses ten physical, chemical, and microbiological parameters (temperature, pH value, electrical conductivity, oxygen saturation, BOD5 , suspended solids, total nitrogen oxides, orthophosphates, ammonium, coliform bacteria) and summarizes them in a water quality index number. Data from the Institute of Hydrometeorology and Seismology of Montenegro (IHMS) from the Annual Reports on Water Quality from 2010 to 2018 were used to assess water quality. The results of this research, according to SWQI, show that in the upper course of the Montenegrin part of the Lim, at the control stations Plav and Andrijevica, water has excellent quality. Downstream, passing through the urban areas of Berane and Bijelo Polje at the control stations Skakavac, Zaton, Bijelo Polje, Dobrakovo, the water quality enters the class of very good and good quality. The results of average SWQI values at all control stations for the research period of eight years indicate that the quality in the Montenegrin part of the Lim River can be classified as very good (87). The paper confirms the importance of the SWQI as a useful method for presenting water quality data despite its many advantages and disadvantages. In order to achieve relevant results and the actual ecological status of the river, it is necessary to apply the Water Quality Index (WQI), which includes inorganic parameters.

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“…Several studies have been conducted on the quality of polluted river water (Milijasevic et al ., 2011; Ishiyama et al ., 2012; Atanackovic et al ., 2013; Gardic et al ., 2015; Serbula et al ., 2016; Dordievski et al ., 2018; Milijasevic Joksimovic et al ., 2018). Ishiyama et al .…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been conducted on the quality of polluted river water (Milijasevic et al, 2011;Ishiyama et al, 2012;Atanackovic et al, 2013;Gardic et al, 2015;Serbula et al, 2016;Dordievski et al, 2018;Milijasevic Joksimovic et al, 2018). Ishiyama et al (2012) showed that the environmental impact on the water of the Danube River is small based on the chemical composition of filtered river water in the Bor mining area.…”

Section: Introductionmentioning

confidence: 99%

Estimation and comparison of the environmental impacts of acid mine drainage‐bearing river water in the Bor and Majdanpek porphyry copper mining areas in Eastern Serbia

et al. 2021

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Mining activities in the Bor and Majdanpek mining areas in Eastern Serbia started in 1903 and 1961, respectively. Environmental problems in the Bor mining area began after the opening of the Bor mine. Long‐term pollution of river water in the Bor and Majdanpek mining areas has an environmental impact on East Europe because all of the river water from these mining areas flows into the Danube River. However, the sizes of areas with pollution and the differences between the environmental impacts of the Bor and Majdanpek mining areas are not clear. In order to determine the effects of mining activities on river water in the study area, creation of geochemical maps showing the distributions of sulfate, heavy metals, and arsenic; estimation of threshold values to discriminate anomalous values from background values; and comparison of the environmental impacts of the two mining areas were carried out. High concentrations of SO42−, Fe, As, Cu, and Mn were found in the Bor River, Krivelj River, and Bela River located in the Bor mining area. These rivers are characterized by acidic pH ranging from 2.9 to 6.2. High concentrations of these components were also measured in the Small Pek River and the upper reach of the Pek River. These rivers are located in the Majdanpek mining area and are characterized by weakly alkaline pH (7.3–8.4). The acidic river water in the Bor mining area transports large quantities of heavy metals and arsenic downstream (6,900 t/year of Fe, 42 t/year of As, 910 t/year of Cu, and 187 t/year of Mn). On the other hand, the weakly alkaline river water in the Majdanpek mining area transports smaller quantities of heavy metals and arsenic downstream (160 t/year of Fe, 0.1 t/year of As, 6 t/year of Cu, and 272 t/year of Mn). The environmental impact of the Bor mining area is significantly larger than that of the Majdanpek mining area. In addition, on the basis of the distribution of anomalous values in river water, pollution caused by mining activities reaches the Danube River, which is located more than 100 km from the Bor and Majdanpek mining areas. Concentrations of SO42−, Fe, As, Cu, and Mn in the Bela River in the Bor mining area have been greatly decreased after mixing of acidic polluted water of the Bela River with water of the Timok River containing a high bicarbonate concentration. This fact suggests that river water in the Bor and Majdanpek mining areas has sufficient capacity for neutralization. Considering appropriate countermeasures of environmental reclamation, such as artificial neutralization at some important sources of waste water before discharging the waste water from the mining sites, there is a possibility for environmental reclamation in both mining areas because unpolluted river water in the study area has sufficient capacity for neutralization in a natural system.

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Application of the water quality index in the Timok River basin (Serbia)

Cited by 15 publications

References 12 publications

Assessment of Water Quality with Special Reference to Hydrochemistry: A Case Study of Auranga Estuary, Valsad, Gujarat, India

Assessment of Water Quality with Special Reference to Hydrochemistry: A Case Study of Auranga Estuary, Valsad, Gujarat, India

Water quality assessment of the Montenegrin part of the Lim river using the Serbian water quality index (SWQI)

Estimation and comparison of the environmental impacts of acid mine drainage‐bearing river water in the Bor and Majdanpek porphyry copper mining areas in Eastern Serbia

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