scholarly journals Quality assessment of Tsurang River water affected by coal mining along the Tsurangkong Range, Nagaland, India

2021 ◽  
Vol 11 (7) ◽  
Author(s):  
Khikeya Semy ◽  
Maibam Romeo Singh

AbstractTsurang, a major river in the Mokokchung district of Nagaland, northeast India, shares great aspects of traditional importance for the Ao Naga tribes and is a part of natural commodity providing water to the agrarian community for irrigation and livestock rearing. However, various environment detrimental activities are practiced along the course of the riverbank, particularly coal mining and agriculture. The present study was conducted to examine the seasonal water quality index (WQI) of the Tsurang river from three selected sampling stations. Overall, the water quality status was rated as “Good” in winter and spring while “Poor” in summer and autumn. In all the seasons, downstream (S3) located at the human settlement area presented higher WQI values compared to upstream (S1) and midstream (S2). The parameters such as turbidity, DO and BOD played a central role in affecting the WQI; although, no such significant roles in case of nutrient elements were observed in affecting the water quality. The WQI revealed that Tsurang river water is deteriorated due to coal mining and other anthropogenic activities practiced along the stretch of the river and the water needs to be pretreated before consumption. Therefore, proper management strategies and conservation efforts should be enforced and regulated by policymakers to protect the river from further contamination.

Author(s):  
Akhand Archna ◽  
Shrivastava Sharad ◽  
Akhand Pratibha

The water quality of River Kshipra in stretch of 195 km was studied for water quality status using benthic macro invertebrates for all three seasons’ monsoon, winter and summer. The River water quality is subject to severe domestic and industrial pollution at compete stretch of River. In the present investigation a total of 13 Orders of macrobenthic fauna i.e. Ephemeroptera, Trichoptera, Placoptera, Coleoptera, Hemiptera, Odonata, Crustacea, Diptera, Pulmonata, Operculata, Pulmonata, Oligochaeta and Hirudinea belong to 3 Phylum’s Arthropoda, Mollusca and Annelida were reported. Arthropoda was the most dominant group in all seasons. On seasonal comparison of benthic fauna is observe that abundance were decreasing order were, Winter > Monsoon > summer. To monitor the water quality samples from two years (2010-12) from different stations were collected monthly. The works highlighted the condition of the River water in various seasons with respect of the seasonal abundance of the benthic macro-invertebrates organisms mentioned above.


2019 ◽  
Vol 20 (2) ◽  
pp. 538-549
Author(s):  
Maoqing Duan ◽  
Xia Du ◽  
Wenqi Peng ◽  
Cuiling Jiang ◽  
Shijie Zhang

Abstract In northern China, river water originating from or flowing through forests often contains large amounts of oxygen-consuming organic substances, mainly humic substances. These substances are stable and not easily biodegradable, resulting in very high detection values of chemical oxygen demand. However, under natural conditions, the dissolved oxygen demand is not as high. Using experimental values to evaluate river water quality and the impact of human activities on water quality is thus unscientific and does not meet national development goals. In this study, the potential sources of high-concentration chemical oxygen demand in river water in two areas exposed to virtually no anthropogenic activities and strongly affected by humic substances, were analysed. The chemical oxygen demand contributed by humic substances (COD-HSs) was quantified using three methods. The results of water quality monitoring in 2017 and 2018 revealed that the chemical oxygen demand concentrations (5–44 mg/L) predominantly exceeded the standard (15 mg/L). The study results suggest that COD-HSs should be considered separately for objective evaluation and management of water quality, particularly in areas that are seriously affected by COD-HSs, to provide a scientific basis for formulating sustainable water quality management policies.


2012 ◽  
Vol 554-556 ◽  
pp. 2116-2119
Author(s):  
Ben Lin Dai ◽  
Fei Hu Mu ◽  
Ning Xu

The offshore region of Haizhou Bay is characterized by intense anthropogenic activities. And the study on water quality status analysis in this offshore region has attracted more and more attention of the researchers and decision-makers. In this paper, an improved method (the PPCM-PCAM) which combines projection pursuit cluster model (PPCM) with principal component analysis method (PCAM) was developed to analysis water quality status. By using this improved method, water quality analysis of Haizhou Bay water area from January 2007 to December 2007 was studied. The analysis results show that the samples in Haizhou Bay water area can be described into 4 "category 1”, 4 “category 2” and 2 “category 3” states in 2007.


2019 ◽  
Vol 8 (4) ◽  
pp. 6462-6467

National River Water Plants are located along upper Klang and Gombak river catchment to purify the polluted river using direct contact methods. As the current water quality situation in the study area is poor due to the contribution of anthropogenic activities on the water quality degradation in these urban rivers, the investigation was performed using the Water Quality Index. This paper gives the overall performance of RWTP using Water Quality Index (WQI) calculation methods. The WQI act as the basis of environment assessment towards to river water quality classification under Malaysia National Water Quality Standards. As an overall result, 57 percent from the total effluents achieve target Class II and above and another 43 percent achieve Class III and below regardless of two (2) RWTPs are under target from the average monitoring; RWTP Sg Gisir and RWTP Sg Sentul. However, the result for RWTP Sg Sentul is not yet conclusive since the monitoring duration is less than 2 years. Certainly, RWTP Sg Gisir needs to be taken into consideration for more frequent maintenance of the RWTP or upgrading of the RWTP oxidation tank as suggested in several MBBR/IFAS operation. As to improve the RWTP performance to score higher WQI, the introduction of recycling sludge in the biological tank so it will be a shorter reaction time. Additionally, the RWTP owner should implement a frequent maintenance work into RWTP component especially clarifier, sludge collector, biological oxidation tank and rubbish trap collector.


Author(s):  
Lina Bagdžiūnaitė-Litvinaitienė ◽  
Andrius Litvinaitis ◽  
Laurynas Šaučiūnas

Increasing migration of nutrients in the river water is a major factor in determining the quality of river water due to anthropogenic activities. In order to preserve the good water quality in rivers and other surface water bodies, it is necessary to take preventive measures that can be scientific water quality research and analysis. According to research carried out in kind, the article analyses the Anykščiai city as point source pollution, and the influence of it to the water quality of Šventoji river. Also, based on the statistical information a nutrient concentrations trend analysis of the meteorological and hydrological con-ditions influence was carried out. Investigations were carried out in July-September of 2016. Concentrations of ammonium (NH4-N), nitrite (NO2-N), nitrate (NO3-N), phosphate (PO4-P) and dissolved oxygen (O2) was analysed. In order to determine the impact of point source pollution on river water quality, the changes in concentration before and beyond Anykščiai city were evaluated, according to the meteorological and hydrological conditions. It was found that total nitrogen (Nb) and total phos-phorus (Pb) concentrations during the investigation period respectively, increases in 6% and 8%.


2022 ◽  
Vol 20 (1) ◽  
pp. 45-57
Author(s):  
Muh Sri Yusal ◽  
Ahmad Hasyim

Pesisir merupakan kawasan yang rentan mengalami penurunan kualitas perairan akibat masuknya bahan-bahan pencemar hasil aktivitas antropogenik dari daratan. Penelitian ini bertujuan untuk untuk mengkaji kualitas perairan berdasarkan keanekaragaman meiofauna dan parameter fisika-kimia di pesisir Losari, Makassar. Selain itu penelitian ini dilakukan untuk menganalisis pengaruh parameter fisika-kimia terhadap keanekaragaman meiofauna di dasar perairan. Penelitian ini bersifat kuantitatif dengan teknik pengambilan data secara purposive sampling. Status kualitas perairan di pesisir Losari dikategorikan sebagai perairan yang tercemar berat, hal ini didasarkan pada tingkat keanekaragaman spesies meiofauna yang sangat rendah dan sebagian besar parameter fisika-kimia perairan yang tidak memenuhi baku mutu yang telah ditentukan oleh pemerintah RI melalui Kep. MLH. No. 51 Tahun 2004. Kecerahan, DO, Suhu, kedalaman, salinitas, dan nitrat sedimen merupakan parameter fisika-kimia yang berkorelasi positif atau berpengaruh terhadap tingkat keanekaragaman meiofauna. Adapun parameter lingkungan perairan yang berkorelasi negatif terhadap tingkat keanekaragaman meiofauna di pesisir Losari, diartikan sebagai hubungan yang tidak menguntungkan. Kondisi ini terjadi akibat meiofauna merasa terganggu atas sebaran fosfat sedimen, nitrat air laut, fosfat air laut, dan pH yang tidak memenuhi baku mutu air laut.ABSTRACTThe Coastal zone are susceptible to decreasing water quality due entry of pollutants from anthropogenic activities in the mainland. This study assessed water quality based on meiofauna diversity and physical-chemical parameters in the Losari coast, Makassar. Furthermore, this study was to analyze the physical-chemical parameters effect on the diversity of meiofauna at the seabed. It employed a quantitative approach with purposive sampling technique. Water quality status on the Losari coast categorized as heavily polluted waters, this based on low level of meiofauna species diversity and most of the physical-chemical parameters does not meet the quality standards determined by Indonesian government through Kep. MLH. No. 51 of 2004. Brightness, DO, temperature, depth, salinity, and sediment nitrate are physical-chemical parameters positively correlated or influenced of meiofauna diversity level. The aquatic environmental parameters negatively correlated with meiofauna diversity level in the Losari coast are interpreted as an unfavorable relationship. This condition occurs because the meiofauna feel disturbed by distribution of sedimentary phosphate, seawater nitrate, seawater phosphate, and pH that does not meet seawater quality regulations.


Water Policy ◽  
2018 ◽  
Vol 20 (2) ◽  
pp. 266-281 ◽  
Author(s):  
Fawzia Tarannum ◽  
Arun Kansal ◽  
Prateek Sharma

Abstract The paper aims to understand how the public perceives river water quality and related risks and behaviour. Using the stratified semi-purposive sampling process, the study explores the perception of people residing along the river Yamuna in India. The method applied involved a structured questionnaire survey of 2706 respondents and four focused group discussions with people residing within two kilometres of the river bank. Non-parametric tests such as Kruskal Wallis, Mann Whitney U-test and One-Sample Wilcoxon Signed-Rank Test were used to analyse the data. The findings suggest that the majority of the respondents formulate their perceptions using non-scientific methods like sensorial and heuristics. Perception on sources of pollution is shaped by personal experiences and people do not perceive diffused sources of pollution that affect river water quality. Respondents attributed the pollution in the river to anthropogenic activities and their risk perception was found to be linked to their direct dependence on the river for their daily needs. The paper suggests behavioural change strategies to focus on social, governance, and technological drivers.


2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Yulia Anggraini ◽  
Eka Wardhani

Cibaligo River is the polluted rivers in Cimahi City. The river that flows through three districts and 6 sub-districts in Cimahi City catchment  area of 666.19 hectares of watershed with a total length of 7 km. The land use of the district through which this river passes is domestic, trade, agriculture, livestock and industry whose waste will end into the Cibaligo River. The impact of these activities causes the river to be polluted and a decrease in water quality. The purpose of this study was to determine the status of water quality from upstream to downstream which represents the transition, dry, and rainy seasons. Knowledge of water quality status can be used as basic data for controlling water pollution in rivers. The pollutant index (IP) method used in this study is in accordance with the Decree of the State Minister for the Environment Number 115 of 2003 concerning guidelines for determining water quality status. The results showed that the water quality status of the Cibaligo River from upstream to downstream represented that each season was categorized as heavily polluted with the highest index value being in the rainy season at the downstream point. The main contributor that causes river water to be heavily polluted is domestic wastewater, especially the presence of total coliform and fecal coliform that exceed the established quality standards. Based on the results of the research, efforts to tackle domestic waste are needed to improve the quality of this river water.


2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Yuniarti Yuniarti ◽  
Danang Biyatmoko

Sungai Jaing merupakan salah satu sungai yang melintas di Kabupaten Tabalong dengan panjang 39 km yang bermuara di Sungai Tabalong. DAS Jaing memiliki luas area ± 298 km2bagian dari DAS Barito di Kalimantan Selatan. Sungai Jaing diklasifikasi sebagai sungai kelas I (satu). Alih fungsi lahan cukup besar terjadi disekitar daerah aliran sungai jaing, bagi sektor pertambangan batubara, sektor migas, sektor industri, perkebunan dan pertanian. Banyaknya aktivitas ini menyebabkan sungai jaing berpotensi cukup besar mengalami penurunan kualitas. Pengamatan lapangan menunjukkan bahwa beberapa kegiatan berpotensi memasukkan unsur pencemar ke Sungai Jaing yang mana kemungkinan membuang limbah produksi secara langsung ataupun run off (limpasan) limbah produksi kedalam sungai. Tujuan penelitian ini adalah menganalisis kualitas Sungai Jaing melalui penentuan Status Mutu Air dari Sungai Jaing. Wilayah penelitian dilaksanakan di Sungai Jaing sejauh 39 Km di Kabupaten Tabalong, Kualitas air sungai diukur dan diamati pada 3 titik pengambilan sampel terhadap parameter fisika, kimia dan biologi. Analisis kualitas dan penentuan status mutu air menggunakan metode STORET dan metode indeks pencemaran. Hasilnya adalah (1) parameter DO, BOD, COD, Fecal coliform dan Total Coliform telah melebihi baku mutu air sungai Kelas I menurut Peraturan Gubernur Kalimantan Selatan                    No. 5 Tahun 2007 sehingga menyatakan kualitas air sungai jaing menurun ( 2) Terjadi pergeseran status mutu air sungai jaing dari hulu ke hilir yang ditandai dengan nilai STORET dan nilai indeks pencemaran (IP) yang cenderung semakin meningkat berdasarkan kriteria sungai menurut PP nomor 82 Tahun 2001. Nilai STORET sungai jaing adalah antara -108 sampai dengan -110 dengan status mutu Cemar Berat dan nilai indeks pencemaran (IP) berkisar antara 4,027 sampai dengan 4,173 yang menyatakan bahwa status mutu air sungai jaing adalah cemar ringan. Kata Kunci: Indeks polusi, kualitas air, metode STORET, status kualitas. Sungai Jaing is one of the rivers that flows in Tabalong District which has length of 39 km and empties into the Tabalong River. The Jaing watershed has an area of ± 298 km2 of the Barito watershed in South Kalimantan. This river is classified as class I (one) river. Several activities for the coal mining sector, oil and gas sector, industrial sector, plantation and agriculture considered to take over the land function widely surrounding the river. Those activities actually have a potential to reduce the water quality of the river. Field observations found pollutants which are likely to dispose of production waste directly or run off (run off) of production waste into the river. Hence, the purpose of this study was to analyze the quality of Sungai Jaing through determining the status of water quality from Sungai Jaing. The research area was carried out in Sungai Jaing as far as 39 Km in Tabalong District where river water quality was measured and observed at 3 sampling points based on physical, chemical and biological parameters. Quality analysis and determination of water quality status using the STORET method and pollution index method. The results are (1) the parameters of DO, BOD, COD, Fecal coliform and Total Coliform have exceeded Class I river water quality standards according to Governor of South Kalimantan Regulation No. 5 of 2007 stating that the quality of river water is decreasing (2) There is a shift of the water quality status of the Sungai Jaing from upstream to downstream which is characterized by the STORET value and pollution index value which tends to increase based on a river criteria according to PP number 82 of 2001. In addition, STORET value of river jaing is between -108 to -110 with the status of Heavy Pollution quality and the pollution index value (IP) ranges from 4,027 to 4,173 which states that water quality status of the Sungai Jaing is mild pollution.  Keywords : Water Quality, Quality Status, STORET Method, Pollution Index


2011 ◽  
Vol 204-210 ◽  
pp. 1467-1471
Author(s):  
Ben Lin Dai ◽  
Zu Lin Hua ◽  
Xu Hua Yu ◽  
Xiao Hui Jiang ◽  
Ke Jian Chu ◽  
...  

The offshore region of Haizhou Bay is characterized by intense anthropogenic activities. And the study on comparative analysis of water quality status in this offshore region has attracted more and more attention of the researchers and decision-makers. In this paper, comparative analysis on water quality status of different samples in Haizhou Bay during May 10-21, 2007 was studied by principal component analysis method (PCAM). The water quality status in Haizhou Bay was compared and analyzed by using 13 samples, with DO, SS, Active Phosphate and Petroleum impact factors. Based on the PCAM analysis procedures, the comparative analysis results of water quality state in Haizhou Bay show that the spatial order from good to bad is determined as follows: JS03> JS01> JS04> JS07> JS02> JS09> JS05> JS06> JS13> JS10> JS12> JS08> JS11.


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