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Littérature scientifique sur le sujet « POLLUTED RIVERS IN INDIA »

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Publié le 16 janvier 2024

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Articles de revues sur le sujet "POLLUTED RIVERS IN INDIA"

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Kharat, Sanjeevan J., et Sanjay D. Pagar. « Determination of Phosphate in Water Samples of Nashik District (Maharashtra State, India) Rivers by UV-Visible Spectroscopy ». E-Journal of Chemistry 6, s1 (2009) : S515—S521. http://dx.doi.org/10.1155/2009/913609.

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The major rivers of Nashik District (Maharashtra State, India) are Godavari, Kadawa, Girna, Punad and Mosam. The major water pollutant of Nashik District Rivers is Phosphate. The amount of phosphate has been determined by the molybdenum blue phosphorous method in conjugation with UV-Visible Spectrophotometer. The data has been analyzed by least square method. The more phosphate polluted river in Nashik district is Godavari. The least phosphate polluted river in Nashik District is Punad.
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Srivastava, Ar Shritik, et Dr Joydeep Dutta. « Impact of Urbanization on Rivers, India ». International Journal for Research in Applied Science and Engineering Technology 11, no 5 (31 mai 2023) : 353–56. http://dx.doi.org/10.22214/ijraset.2023.51515.

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Abstract: A Central Pollution Control Board (CPCB) report of 2015 brought out the fact that 61,948 million litres of urban sewage is generated on a daily basis in India. But the cities have an installed sewage treatment capacity of only 38 per cent of this. In reality more than this amount goes untreated into the rivers or water bodies as the treatment capacity of major sewage treatment plants (STPs) in the country is around 66 per cent of the installed capacity as per CPCB findings of 2013. As a result, more than 38,000 million litres of waste water goes into the major rivers, water bodies and even percolates into the ground every day. Accelerated transformation of ‘urban riverfront development’ has been pushed along the riverbanks in the last few decades. The riverfront development has been reduced to just cosmetic ‘river beautification’ and unaccountable money spent to increase its real estate and commercial value. Increasing urbanization in the river basin is followed by a number of serious Physical, Chemical & Environmental impacts on the health of the river basin system. We are in the country where rivers are considered as mother but it is unfortunate to say that Indian rivers are much more polluted in comparison of other rivers of the world. Through this Dissertation it will be tried to understand the major reason citizens are not sensitive towards river and develop understanding how we can rejuvenate our tributary rivers.
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Kavitha, S., et C. Dhandapani. « Water Pollution in India : An Overview ». International Review of Business and Economics 1, no 3 (2018) : 153–55. http://dx.doi.org/10.56902/irbe.2018.1.3.39.

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Most ancient civilizations grew along the banks of rivers. Even today, millions of people all over the world live on the banks of rivers and depend on them for their survival. All of us have seen a river large or small either flowing through our town or somewhere else. Rivers are nothing more than surface water flowing down from a higher altitude to a lower altitude due to the pull of gravity. One river might have its source in a glacier another in a spring or a lake. Rivers carry dissolved minerals organic compounds, small grains of sand gravel and other material as they flow downstream. Rivers begin as small streams which grow wider as smaller streams and rivers join them along their course across the land. Eventually they flow into seas or oceans. Unfortunately most of the world’s major rivers are heavily polluted. The pollution of environment is the gift of the Industrial revolution prior to this the agrarian cultures created significant environment deforestation and overgrazing. The Environmental degradation is a byproduct of modern civilization. Water Pollution is a major global problem which requires on going evaluation and revision of water resource policy at all levels. It has been suggested that water pollution is the leading worldwide cause of deaths and diseases and that it accounts for the deaths of more than 14,000 people daily. An estimated 580 people in India die of water pollution related illness every day.
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Chakrabarty, D., et S. K. Das. « Fish community structure and ecological degradation in tropical rivers of India ». Web Ecology 6, no 1 (19 juillet 2006) : 27–36. http://dx.doi.org/10.5194/we-6-27-2006.

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Abstract. Fish community structure and water chemistry of two tropical rivers of West Bengal, an eastern province of India, were studied for two annual cycles (January 2003–December 2004). Water quality and fish community structure reflected a higher degree of pollution in the Churni river than in the Jalangi river. We observed that 63.6% of fish species had disappeared from the polluted Churni river in 20 yr. For protection of fish biodiversity and enhancement of fish production, a rational management program should be implemented in Churni river. Warning: Triplicate publication
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Sreen, Amit, Harinder Pal Singh, Vivek Guleria et Niket Verma. « Relation of Gallbladder Cancer, Gallbladder Stones and Breast Cancer with Polluted Rivers – A Case Control Study in the Indo-Gangetic Plains ». Journal of Evidence Based Medicine and Healthcare 8, no 12 (22 mars 2021) : 657–61. http://dx.doi.org/10.18410/jebmh/2021/129.

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BACKGROUND Gallbladder cancer and breast cancer are two common malignancies seen along the Ganges River and the Indo-Gangetic plains of northern India, especially in the states of Uttar Pradesh and Bihar. Some of the postulated aetiologies include cholelithiasis (gallstones), typhoid carrier state, dietary factors, genetic predisposition and chemical carcinogens. Studies have also linked gallbladder cancer and breast cancer to carcinogens in polluted rivers. We undertook this study to investigate as to whether these conditions and gallstones were more prevalent in populations living close to polluted rivers. We also wanted to investigate as to whether there is any association between gallbladder cancer, gallstones and breast cancer with river pollution. METHODS This was a case-control study carried out in the Department of Oncology of a tertiary level defence hospital between 2018 and 2020. Patients who were diagnosed as having gallbladder cancer, gallstones or breast cancer in this tertiary institute, and were permanent residents of Uttar Pradesh or Bihar were included in the study. RESULTS In this study, we found that patients with gallbladder cancer, gallstones and breast cancer had their home closer to the river at a distance of around 53.9, 54 and 39.1 Kms. respectively compared to controls whose homes were at a distance of 76.7 Kms. CONCLUSIONS This study suggests that proximity to polluted rivers is one more factor in the aetiology of aforementioned diseases. Governmental agencies must consider monitoring and controlling the release of pollutants from the industries into the local nearby rivers. KEYWORDS Gallbladder Neoplasms, Drinking Water, Gallstones, Public Health
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Vanjare, Avinash Isaac, Yugandhar Satish Shinde et Sameer Mukund Padhye. « Faunistic overview of the freshwater zooplankton from the urban riverine habitats of Pune, India ». Journal of Threatened Taxa 15, no 9 (26 septembre 2023) : 23879–88. http://dx.doi.org/10.11609/jott.8522.15.9.23879-23888.

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Urbanization modifies the physical, chemical, and biological nature of all ecosystems including rivers. Such changes negatively impact all aquatic biodiversity including the freshwater zooplankton. Given the fast pace of urbanization in all the major cities across India, the aim is to provide a faunistic overview of Rotifera, Cladocera, and Ostracoda from two polluted rivers flowing through Pune, one of the rapidly growing cities in the state of Maharashtra, India. A one-year survey of three localities on the rivers Mula & Mutha and data from published literature on another locality revealed the presence of 73 species which includes 47 rotifers, 15 cladocerans, and 11 ostracods. A higher species number of rotifers was seen at lesser polluted localities while cladocerans and ostracods occurred even in the most urbanized sampling locality. Many of the species found were commonly observed species from the region. Epizoic associations of cladocerans and rotifers and red coloration in the former group were observed during a low dissolved oxygen phase in both rivers. Such observations underscore the potential bioindicator value of these small animals to the impacts of urbanization.
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PR, Rakhecha. « Water environment pollution with its impact on human diseases in India ». International Journal of Hydrology 4, no 4 (4 août 2020) : 152–58. http://dx.doi.org/10.15406/ijh.2020.04.00240.

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The problem of water pollution in India is not a new one. It has been an age- old practice that people dispose of their waste into rivers and other water bodies. The consumption of polluted water is intimately connected with the occurrence of many deadly diseases. Rapid and unplanned population growth in India is a key factor to the whole equation of water pollution. This paper provides an overview of population growth, the mechanism of water pollutant load, causes of water pollution in India as well as the diseases resulting from the use of polluted water.
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Rahangdale, Kushal, Joshua Khaire, Vasundhara Bhoyar, Himani Patil, Gajendra Thakre, Yugandhara Bawane, Gaurav Parashar et Shubham Kamble. « Pollution Study Of Near By River (Nag River) ». International Journal for Research in Applied Science and Engineering Technology 10, no 3 (31 mars 2022) : 1148–50. http://dx.doi.org/10.22214/ijraset.2022.40802.

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Abstract: A nature is changing its form day by day. As we seen change in natures form, the quality of environment is depleting day by day and Environment mainly depends on the air & water. The water in the river exposes to environment during flowing and passes through various regions & may result in carrying polluted water. Water quality of river is depleting day by day due the wanted and unwanted activities of the human being. The majority of India's rivers are heavily polluted as a result of human activity, which is a huge worry. The water quality of the Nag river in Nagpur, Maharashtra, India, is determined in this project. Recently, different unending attempts have been done in this field to add Nag River to the city's historical list. This river runs through the city and serves as a waste water drainage system for Nagpur. Nagpur's urban waste pollution has severely harmed the environment of the rivers. Because such polluted waste affects all metabolic, physiological, and biological processes of aquatic organisms, it is critical to research physic-chemical features of water. The water will be tested for pH, dissolved oxygen, total dissolved solids, ammonia, and other important water quality characteristics. The effluent samples will be collected from different locations. Keywords: Quality of Water Nag River, Parameter.
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Gopal, Brij, et Malavika Sah. « Conservation and Management of Rivers in India : Case-study of the River Yamuna ». Environmental Conservation 20, no 3 (1993) : 243–54. http://dx.doi.org/10.1017/s0376892900023031.

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The River Yamuna, originating in the Himalayas, is the largest tributary of the River Ganga (Ganges) into which it flows at Allahabad. Its drainage basin covers about 42% of the Ganga River basin and about 11% of India's total land area. The area of the Yamuna drainage basin is densely populated and under intensive agriculture, while industrial activity is also rapidly growing in it. Climatically, a large part of the basin is semi-arid, and the river-flow depends upon highly erratic monsoonal rains. Therefore, the River and its tributaries have been regulated for over a century by dams and barrages for domestic water-supply and irrigation.Besides increased flow-regulation, the River's system has been under increasing anthropogenic stress from discharge of—mostly untreated—domestic and industrial wastewaters, and from other activities in the basin. River Yamuna is severely polluted by domestic and industrial effluents especially from Delhi down to Agra. Water extraction and consequently low flow has affected the selfpurification capacity of the River. The greater inflow of River Chambal helps River Yamuna to recover to some extent after their confluence near Etawah.Studies of water quality and biota of the River Yamuna along its course during the past 30 years show rapid deterioration of water-quality, loss of fisheries, and significant changes in the biotic communities. In the manner of River Yamuna, its tributaries have also become increasingly polluted during the same period. There has, however, been little attention paid to the management of the River system and conservation of its resources, except for some efforts at the treatment of sewage effluents but emphasizing only water-quality. Ignoring the river-flood-plain interactions which play significant roles in the ecology of a river, most of the floodplain has been reclaimed by constructing high levees.We emphasize that the Yamuna River basin should be treated as one ecocomplex in developing appropriate management strategies, and that the conservation of waterquality and biota can be achieved through protection and better management of floodplains than has been practised to date.
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Glorian, Heinrich, Hilmar Börnick, Cornelius Sandhu et Thomas Grischek. « Water Quality Monitoring in Northern India for an Evaluation of the Efficiency of Bank Filtration Sites ». Water 10, no 12 (8 décembre 2018) : 1804. http://dx.doi.org/10.3390/w10121804.

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The study presents results of five sampling campaigns at riverbank filtration sites at the Yamuna and Ganges Rivers in Uttarakhand, Uttar Pradesh and New Delhi 2015–2018. Samples were analyzed for organic micropollutants and general water quality parameters. In New Delhi and Uttar Pradesh, 17 micropollutants were detected frequently at relevant concentrations. Out of the detected micropollutants, 1H-benzotriazole, caffeine, cotinine, diclofenac, diuron, gabapentin and paracetamol were frequently detected with concentrations exceeding 1000 ng/L. Sites in Uttarakhand showed only infrequent occurrence of organic micropollutants. The mean concentration of micropollutants in the well water was lower compared to the river water. For all sites, removal rates for all micropollutants were calculated from the obtained data. Thereby, the capacity of riverbank filtration for the removal of organic micropollutants is highlighted, even for extremely polluted rivers such as the Yamuna.
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Thèses sur le sujet "POLLUTED RIVERS IN INDIA"

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Geest, Harm Geertgen van der. « Insects in polluted rivers : an experimental analysis ». [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2001. http://dare.uva.nl/document/60011.

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SANTOS, NAIARA DE OLIVEIRA DOS. « ACCELERATED DEPURATION OF POLLUTED RIVERS USING HYDROGEN PEROXIDE ». PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=26761@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO
Estudos prévios relacionam a ocorrência de episódios de mortandade de peixes em corpos hídricos como a Lagoa Rodrigo de Freitas (LRF) com a rápida disponibilização de espécies poluentes e nutrientes naturais na coluna d água especialmente durante altas precipitações de chuva, quando ocorre transbordo dos rios poluídos da bacia sobre a água da Lagoa, ocasionando uma demanda de oxigênio dissolvido maior do que o normal para depuração de tais espécies. Nesse contexto existe interesse em evitar episódios críticos de insuficiência de OD na água dos corpos hídricos que possam advir de tais eventos. Estudos realizados no presente trabalho tiveram como objetivo caracterizar as águas de rios da Sub-bacia hidrográfica da LRF através de DBO, COT, SST, Ptotal no canal a montante de deságue para a Lagoa em períodos de chuva e de tempo seco; e avaliar um possível tratamento que proporcione a depuração acelerada dos poluentes utilizando peróxido de hidrogênio, fornecendo oxigênio para as águas poluídas através do processo de decomposição do oxidante. Avaliaram-se diferentes dosagens de H2O2 em tempo reacional de 24h de acordo com limites de ecotoxicidade conhecidos. Testes realizados em amostras de rio coletadas em dias de baixa precipitação contendo concentrações de DBO de até 2,2 mg/L mostraram uma velocidade de decaimento de H2O2 inferior ao para amostras tanto coletadas também em dia de baixa precipitação porém com elevada DBO (24,0 mg/L), quanto para dia de alta precipitação (13,2 mm em 24 h) com relevante concentração de material orgânico. Observou-se uma dosagem suficiente de 15,0 mg/L para as amostras coletadas em baixa precipitação e alta DBO, e dosagem suficiente de 3,0 mg/L para amostras coletas em maior evento de precipitação (13,2 mm em 24 h), acima das quais, não ocorre mais aumento significativo da velocidade de decaimento da [H2O2] e também de velocidade de contribuição de OD para a água. Concluiu-se que a adição de H2O2 nas águas de rios durante eventos de poluição causados por chuvas intensas ou lançamento de esgoto pode contribuir para evitar episódios críticos de insuficiência de OD em rios poluídos por material orgânico e na pluma de poluentes que pode ser formada por transbordo dos rios para a LRF.
Previous studies have associated the occurrence of episodes of death of fish in water bodies such as the Lagoa Rodrigo de Freitas (LRF) to to the rapid availability of pollutants and natural nutrients in the water column species especially during high rain precipitation events, which occur when the rivers overflow and pollute the water of the lagoon, causing a biochemical oxygen demand higher than usual for the rate of natural depuration of the contaminating species. In this context there is interest in avoiding critical episodes DO deficiency in the water bodies that may arise from such events. Studies conducted in the present work aimed at characterizing the rivers of sub-basin of LRF through BOD, TOC, TSS, Ptotal on the canal that overflows into the lagoon in periods of rain and dry weather; and evaluate a possible treatment offering the accelerated depuration of pollutants using hydrogen peroxide, providing oxygen to the polluted water through the self-decomposition process. The study evaluated the effect of different doses H2O2 in 24 hours of reaction time according to known ecotoxicity limits. In tests on samples collected from rivers in days of little rain containing BOD concentrations up to 2.2 mg / L, H2O2 showed a decay rate lower than those of other samples also collected on days of low precipitation, but with high BOD (24, 0 mg / L), and days of high rainfall (24 hours 13.2 mm), with a significant concentration of dissolved organic contaminants. A maximum sufficient dose of 15.0 mg / L was found for the low and high samples precipitation BOD, and a maximum sufficient dose of 3.0 mg / L for most of the samples collected during the precipitation event (13.2 mm 24 hours), above which there is no significant increase over the rate of decomposition of [H2O2], and the rate of generation of DO in the water. It was concluded that the addition of H2O2 into the waters of rivers during pollution events caused by heavy rains or sewage release can help to avoid critical episodes of DO deficiency in polluted rivers by organic matter and pollutant plume that can be formed by overflow of those rivers to the LRF lagoon.
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Feldes, Klara Katharina. « Media Discourses on the Interlinking of Rivers in India ». Doctoral thesis, Humboldt-Universität zu Berlin, 2019. http://dx.doi.org/10.18452/20334.

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Im Jahre 1954 verkündete Indiens erster Premierminister Jawaharlal Nehru, dass Staudämme die “Tempel des modernen Indiens” seien. Ausgehend von der These, dass dieser Aussage eine „developmental imagination“ zugrunde liegt, die bis heute ein auffälliges Merkmal vieler Diskurse zu Großprojekten in Indien ist, und dass die Medien eine wichtige Rolle darin spielen, diese Diskurse zu zeichnen, betrachtet die Dissertation die Frage, wie große Wasserinfrastrukturprojekte in der indischen Medienlandschaft dargestellt werden. Um diese Frage zu beantworten, wird in der Dissertation eine Medienanalyse durchgeführt, bei welcher die Berichterstattung zum Indischen River Linking Projekt (NRLP) und zu zwei Vorhaben, die im Rahmen des NRLP stattfinden (Ken-Betwa und Polavaram), im Fokus stehen. Das 168-Milliarden Dollar teure NRLP Projekt ist das weltweit größte sich im Bau befindliche Wasserprojekt und sieht den Bau vieler Staudämme und Verbindungskanäle vor. Kontrovers debattiert wird das NRLP insbesondere in Bezug auf die hohen ökologischen und sozialen Kosten: Nach einer historischen Einbettung des Themas wird die Medienanalyse anhand einer Auswahl an Zeitungs- und Zeitschriftenartikeln aus dem Zeitraum 2000 bis 2016 durchgeführt. Darüber hinaus beinhaltet die Arbeit ein Kapitel, welches sich auf Feldforschung im Polavaram Staudammgebiet bezieht, um Perspektiven, die ansonsten in Mediendiskursen häufig marginalisiert werden, aufzuzeigen; die der von Umsiedelung betroffenen Communities. Die Dissertation zeigt das Kontinuum der „developmental imaginations“ in Indiens Diskursen zu großen Infrastrukturprojekten auf, weist auf die Machthierarchien hin, die ausschlaggebend dafür sind, wem die Möglichkeit zukommt sich überhaupt an Diskursen zu beteiligen, und hebt politische Narrative hervor, die in dem Kontext eine starke Verbindung zu „Nationbuilding“ oder „Statebuilding“ Diskursen aufweisen.
In 1954 India’s first Prime Minister Jawaharlal Nehru proclaimed dams to be the “temples of modern India”. Based on the theses that this “developmental imagination” so visible in Nehru’s statement continues to be a prominent feature in discourses on large scale infrastructure projects in India until today, and that the media plays an important role in shaping these public discourses, the dissertation considers the question of how large scale water infrastructure schemes are covered within the Indian media landscape. To answer that question, a media analysis is conducted which focuses on the reporting on the Indian National River Linking Project (NRLP) and on two schemes being implemented under the NRLP: The Ken-Betwa and the Polavaram Dam Projects. The 168-billion-dollar NRLP project is the world’s largest water project in the making and includes the construction of several dams. It is designed to connect the majority of Indian rivers to a gigantic water grid. It is controversially debated, especially with regard of ecological and social costs. After a historical embedding of the topic, the media analysis is conducted through a choice of magazines and newspapers in a time period from 2000 until 2016. Furthermore, the dissertation incorporates a chapter based on field work in the Polavaram Dam area in order to shed light on perspectives often marginalised in the media discourses: those of the affected communities. The dissertation reveals the continuum of developmental imaginations in the discourses on India’s large scale infrastructure projects until today, points out how power hierarchies are at work with regard to who is able to participate in the discourses and who is not, and highlights narratives closely linked to ideas of nation- or statebuilding that are used by politicians within the media discourses.
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Hibbert, Chris. « Controls on seasonal elemental variation in tropical rivers in Goa, India ». Thesis, Birkbeck (University of London), 2017. http://bbktheses.da.ulcc.ac.uk/275/.

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This study focuses upon chemical variation in fluvial discharge over a 15 month period (May 2007 – July 2008) in a sub-tropical, monsoonal climatic regime in western India. Here, highly seasonal rivers rising at the Western Ghats escarpment discharge into the Arabian Sea. The Ghats present a topographical barrier to the SW monsoon, and thus generate one of the world’s highest orographic gradients. Two river basins were selected for this study, the Zuari and the Chapora, both characterised by high seasonal precipitation and run-off, with c. 85% occurring during the monsoon months (June – September). The rivers flow steeply down the Ghats then across the low-lying Konkan - Kanara coastal plateaux much of which is heavily weathered and covered by laterite. The water samples (n = 13 per month) were collected from seven sites along the Zuari River and six sites along the Chapora River. The samples were analysed using ICP-MS for cations and ion chromatography for anions. Major and trace element concentrations were found to be very low throughout both basins, although a marked increase was observed for various elements (e.g., Ca, K, Mg, Na, Rb, Sr, V, Cr, Mn, Fe, Co, HCO3-) shortly after the onset of the monsoon. We interpret this as a ‘rinse-out effect’. Despite absolute concentrations decreasing with increasing river run-off, total element fluxes increase during the monsoon. Additionally, due to the low elevation of the coastal plain, tidal effects are observed c. 40 km inland becoming forced seaward during the monsoon by high river flows. Silicate weathering is of primary importance in the long term global climate due to associated CO2 sequestration, and continental weathering is controlled by numerous factors, including lithology, climate, vegetation and anthropogenic effects; it is highest in the humid tropics due to high temperatures and precipitation. However, this study also identifies additional controls, these being the degree of weathering and the extent of weathering residuum, which are major limiting factors for elemental fluxes in tropical catchments.
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Santhi, Kanna Dorai Kannan. « Industrial Pollution and Economic Compensation : A Study of Down Stream Villages in Noyyal River, Tirupur, Tamil Nadu, South India ». Thesis, Linköping : Linköping University. Department of Water and Environmental Studies, 2008. http://www.diva-portal.org/smash/get/diva2:223033/FULLTEXT02.

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Gundersen, Pål. « Concentrations and speciation of Cu, Zn, Cd, and Al in mine-polluted Norwegian rivers : influence of main water parameters and consequences to fish ». Doctoral thesis, Norwegian University of Science and Technology, Faculty of Natural Sciences and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1120.

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This thesis presents concentration and speciation data for Cu, Zn, Cd, and Al in eight highland rivers and streams in the Røros area, central Norway. About 16 sampling campaigns were performed before, during and after floods during spring and autumn of 1997. Due to rain- and snowmelt-induced flushout from weathered mine tailings, the flood episodes were expected to produce high concentrations of metals in the local rivers. The examined river sites represent highly different degrees of pollution, height above sea level, annual discharge, pH, etc., and the project is aimed towards producing general information about the temporal variations of the metal chemistry and parameters important for the metal chemistry in this and similar regions. Dissolved species of the metals were fractionated by dialysis in situ, colloidal species by filtration, and total (more precisely; soluble in 0.1 M HNO3) concentrations were determined directly after acidification. Ca concentration, pH, river discharge, water temperature, and to a lesser extent precipitation and TOC were also monitored. In addition Cu and Zn/Cd metallothioneins were studied in kidney, liver and gills in trout (salmo trutta) populations in two of the rivers characterized by completely different metal concentration fingerprints.

The results showed that Cu and Al, and possibly Zn and Cd as well, were practically completely in particulate or colloidal form at pH values of 7 and above. At pH levels one or a few pH units lower, the trace metals shifted to occur almost completely dissolved. The pH range at which the change from colloidal/particulate to dissolved species occurred, depended on the metal concerned and the TOC in the water. High TOC concentrations (> 8) seemed to accompany low fractions of dissolved metals, probably because the metals adsorbed on high molecular weight organic compounds or organic coatings on inorganic particles. At TOC concentrations lower than 8 mg/L, a 50 % dissolved fraction was estimated at pH ~7.2 and ~5.8 for Cu and Al respectively, whereas for Cd and Zn, a 50 % dissolved fraction was estimated at pH 7.7. The latter is a pH slightly higher than the highest value observed in the present investigation. Higher TOC concentrations (>8 mg/L) increased metal adsorption and made adsorption start up to one pH unit lower than in low TOC waters (<8 mg/L).

Total metal concentrations were generally elevated during flood conditions in the pH neutral rivers, whereas pH was significantly lowered. In spite of the low pH, the dissolved fractions of Zn, Cd, and Al decreased during flood periods, probably due to enhanced particle concentrations. Thus flood conditions apparantly brought metals into a less acute toxic state. However pH may have influenced metal toxicity in other ways as well; e.g. the free metal ion activity in the dissolved fraction could have increased during flood due to the decreased pH. But even if that was the case, metal toxicity would not necessarily be higher since H+ competes with free metal ions for uptake sites on biological membranes.

Alkalinity and Ca reduce negative effects of metals, and both were low during flood conditions. This is obviously unfortunate for aquatic organisms. Generally however, total metal concentration peaks occurred at the beginning of rising floods, followed by a very low pH, alkalinity, and Ca concentration a few weeks later and the spring discharge maximum a few weeks after that. Thus Ca2+ and pH had not yet reached their spring minimum, that is; the most unfavorable condition to protect organisms against metals, at the metal concentration maximum.

The snowcap covering River Orva accumulated and contained huge amounts of Cu, and may have substantially increased the Cu concentration in the river during snowmelt. This also impacts reaches of the large river Glåma which receives water from Orva. It is suggested that the hydroelectric power plant Kuråsfossen in Glåma should regulate river runoff in a different manner in order to smooth out metal concentration peaks.

Gill concentrations of Cu metallothionein (MT) in Rugla and Cd/Zn MT in Naustebekken were appreciably elevated during run-off episodes. The Cu MT and Cd/Zn MT concentrations in gills and kidneys were high enough to account for all or almost all Cu and Cd but only for a minor fraction of the Zn present in these organs. For Zn this indicates that other detoxifying mechanisms may be more important than MT.

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Feldes, Klara Katharina [Verfasser], Michael [Gutachter] Mann et Antje [Gutachter] Linkenbach-Fuchs. « Media Discourses on the Interlinking of Rivers in India / Klara Katharina Feldes ; Gutachter : Michael Mann, Antje Linkenbach-Fuchs ». Berlin : Humboldt-Universität zu Berlin, 2019. http://d-nb.info/1192752783/34.

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Sinha, Pammi Nitin. « An alternative approach to evaluating inter-basin water transfer links : a case study of the Inter-Linking of Rivers project in India ». Thesis, Durham University, 2017. http://etheses.dur.ac.uk/12487/.

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Water managers face significant challenges in managing water supply and are constantly looking for new ways to meet demand. Inter-basin water transfer (IBWT) is a preferred solution, especially in developing countries such as India. Proponents have praised IBWT for its benefits but critics have raised several concerns, among which, concerns related to the IBWT decision-making process are fundamental. The proposed Inter-linking of Rivers project (ILR) in India has been extensively criticised for its decision-making process. This thesis evaluated the decision-making process of two ILR Projects in India, namely the Sankh-South Koel (S-SK) and South Koel-Subarnarekha (SK-Sr) ILR links, using data and tools available in the public domain. The research acquired a holistic and multi-disciplinary understanding of the catchments involved in the two ILR projects. The knowledge gained assisted in identifying key inputs, informing assumptions and explaining the research outcomes. Based on the best-practices in the IBWT field, the study developed an integrated appraisal of potential annual and seasonal surplus/deficit of water in the donor and recipient catchments of both links. Both ILR links and their catchments were simulated for their annual and seasonal performance assessments under a range of current and future water management scenarios. The simulation outputs were used to assess the risks in meeting water requirements by the catchments and the links. The ILR links were also assessed for their vulnerabilities in meeting the proposed water transfer amount. The research critiqued existing ILR plans and found that the ILR planners have over-estimated the water surplus in the donor catchments of both links and that the links will fail to meet their projected aspirations. The donor catchments themselves need efforts to ensure their current and foreseeable future water demand. The recipient catchments show no urgent need to import water from another basin currently or in the foreseeable future; although low water availability has been noted in them during the non-monsoon season which needs attention. Thus, the ILR planners are advised to reconsider their decisions and revisit their planning.
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Wagner, Paul Daniel Verfasser], Karl [Akademischer Betreuer] Schneider et Georg [Akademischer Betreuer] [Bareth. « Impacts of climate change and land use change on the water resources of the Mula and Mutha Rivers catchment upstream of Pune, India / Paul Daniel Wagner. Gutachter : Karl Schneider ; Georg Bareth ». Köln : Universitäts- und Stadtbibliothek Köln, 2013. http://d-nb.info/1038379466/34.

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Wagner, Paul Daniel [Verfasser], Karl Akademischer Betreuer] Schneider et Georg [Akademischer Betreuer] [Bareth. « Impacts of climate change and land use change on the water resources of the Mula and Mutha Rivers catchment upstream of Pune, India / Paul Daniel Wagner. Gutachter : Karl Schneider ; Georg Bareth ». Köln : Universitäts- und Stadtbibliothek Köln, 2013. http://d-nb.info/1038379466/34.

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Livres sur le sujet "POLLUTED RIVERS IN INDIA"

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Moyo, N. A. G. Lake Chivero : A polluted lake. Harare : University of Zimbabwe Publications, 1997.

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author, Mitra Shayoni joint, dir. Rivers of India. New Delhi : Niyogi Books, 2011.

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Rivers of India. New Delhi : Arise Publishers & Distributors, 2011.

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Ray, Ajin. Is India politically polluted ? : Geo-social protests and challenges. Allahabad : Horizon Publishers, 1998.

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Singh, Arun Kumar. Privatization of rivers in India. Mumbai : Vikas Adhyayan Kendra, 2004.

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India. Ministry of Information and Broadcasting. Publications Division., dir. The mighty and mystical rivers of India. New Delhi : Publication Division, Ministry of Information & Broadcasting, Govt. of India, 2002.

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Ray, Pranab Kumar. Rivers of conflict or rivers of peace : Water sharing between India and China. New Delhi : Observer Research Foundation, 2014.

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Ganguly, Thukral Enakshi, dir. Big dams, displaced people : Rivers of sorrow, rivers of change. New Delhi : Sage Publications, 1992.

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Qader, Mirza M. Monirul, Ahmed Ahsan Uddin et Ahmad Qazi Kholiquzzaman 1943-, dir. Interlinking of rivers in India : Issues and concerns. New York : Taylor & Francis, 2008.

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River disputes in India : Kerala rivers under siege. New Delhi : Mittal Publications, 2003.

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Chapitres de livres sur le sujet "POLLUTED RIVERS IN INDIA"

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Tewari, D. P. « Rivers in Ancient India ». Dans Springer Hydrogeology, 25–34. Singapore : Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-2984-4_2.

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Greer, C. W. « Bacterial Diversity in Hydrocarbon-Polluted Rivers, Estuaries and Sediments ». Dans Handbook of Hydrocarbon and Lipid Microbiology, 2329–38. Berlin, Heidelberg : Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-77587-4_169.

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Humeniuk, Halyna, Olena Voloshyn et Volodymyr Voloshyn. « Seasonal dynamics of cadmium and plumbum in the Turia and Pripyat rivers ». Dans Proceedings e report, 540–46. Florence : Firenze University Press, 2020. http://dx.doi.org/10.36253/978-88-5518-147-1.54.

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The anthropogenic pressure on aquatic ecosystems leads to a significant transformation of their quantitative and qualitative composition. Many rivers of Ukraine are polluted. The object of research was the surface waters of the rivers Pripyat and Turiya (Volyn region, Ukraine). Analysis of the qualitative and quantitative composition of toxicants (Cd, Pb) showed that the waters of the rivers have high level of pollution. A negative phenomenon in the studied reservoirs is a significant excess of concentrations of heavy metals: lead in 118 times and cadmium in 110 times in August.
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Ranjan, Amit. « Managing the Rivers and Water Resources in India ». Dans Federalism and Inter-State River Water Disputes in India, 173–203. London : Routledge India, 2023. http://dx.doi.org/10.4324/9781003344063-6.

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Phukan, Pranjal Kumar. « Water Balance Equation for Rivers of Assam, India ». Dans Water and Environment for Sustainability, 45–54. Cham : Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27280-6_3.

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Pink, Ross Michael. « Indonesia : One of the Most Polluted Countries in the World ». Dans Water Rights in Southeast Asia and India, 93–118. New York : Palgrave Macmillan US, 2016. http://dx.doi.org/10.1057/9781137504234_5.

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Faafeng, Bjørn A., et Roger Roseth. « Retention of nitrogen in small streams artificially polluted with nitrate ». Dans Nutrient Dynamics and Retention in Land/Water Ecotones of Lowland, Temperate Lakes and Rivers, 113–22. Dordrecht : Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1602-2_14.

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Abhishek, Pankaj Kumar Gupta et Brijesh Kumar Yadav. « Nutrient Loading Impact on Remediation of Hydrocarbon Polluted Groundwater Using Constructed Wetland ». Dans Wastewater Assessment, Treatment, Reuse and Development in India, 173–84. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95786-5_9.

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Chakraborty, Tilottama. « Development of Spatial Cognitive Model for Estimation of Ungauged Runoff for Mesoscale Rivers ». Dans Water and Energy Management in India, 23–54. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66683-5_2.

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Ashok, S., V. Akila, P. M. Ayyasamy et S. Rajakumar. « Bioremediation of Ethylbenzene by Soil Column Study and Bioreactor Study for Polluted Soil and Water Samples Using Optimized Bacterial Consortium ». Dans Integrated Waste Management in India, 155–68. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27228-3_15.

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Actes de conférences sur le sujet "POLLUTED RIVERS IN INDIA"

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Liu, Bo, Ming Sheng, Guoxiang Wang, Du Xu et Dezhi Yan. « Ammonia volatilization of heavily polluted rivers under simulated aeration ». Dans International Conference on Civil, Transportation and Environmental Engineering (CTEE 12). Southampton, UK : WIT Press, 2013. http://dx.doi.org/10.2495/ctee120731.

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Santos De Castro, Felipe, João Lucas Dozzi Dantas, André Mitsuo Kogishi, Patrick Donega Queiroz, Gabriel Galvão Matos et Felipe Araujo da Mata. « Experimental analysis of floating debris barrier employed on polluted rivers ». Dans Proceedings of the 39th IAHR World Congress From Snow to Sea. Spain : International Association for Hydro-Environment Engineering and Research (IAHR), 2022. http://dx.doi.org/10.3850/iahr-39wc252171192022668.

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Quinn, Larry. « Planning for the Restoration of Polluted Rivers in Sichuan Province, China ». Dans Wetlands Engineering and River Restoration Conference 1998. Reston, VA : American Society of Civil Engineers, 1998. http://dx.doi.org/10.1061/40382(1998)95.

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Anand, P. M. Rubesh, et Vidhyacharan Bhaskar. « Polluted content prevention in Peer-to-Peer file sharing networks ». Dans 2011 Annual IEEE India Conference (INDICON). IEEE, 2011. http://dx.doi.org/10.1109/indcon.2011.6139497.

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Lutai, Dmytro, et Natalia Kichuk. « Water quality assessment of Katlabukh Lake and inflowing rivers ». Dans International Conference of Young Scientists on Meteorology, Hydrology and Environmental Monitoring. Ukrainian Hydrometeorological Institute, 2023. http://dx.doi.org/10.15407/icys-mhem.2023.012.

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The estuary zone of the Danube forms a large bog delta with a total area of about 5640 km2 of Danube lakes (Kahul, Katlabukh, Yalpuh, Kytay, Sasyk), which in recent years are subject to intensive anthropogenic pollution. After their damming and transformation into water reservoirs, water exchange is carried out with the help of a system of locks and channels, without forced water supply, which has significantly affected deterioration, both the regime of lakes and their hydrochemical condition. This is especially true for the Katlabukh and Kytay lakes, which have much worse conditions of water exchange because of their geographical location and the anthropogenic impact on the catchement area of the rivers falling into the lakes, there is a need for thorough analysis of their hydrologic and hydrochemical regimes in order to provide appropriate recommendations. The object of the study is the surface waters of the lake Katlabukh and the rivers that fall into it. The aim of the work is to assess the water quality of the lake Katlabukh and the studied rivers according to modern methods and the possibility of using their water resources. For the characteristics of hydrochemical regime of the rivers Yenika, Tashbunar, Velykyy Katlabukh, Katlabukh lake, the data of the monitoring laboratory of waters of Danube regional office of water resources for the period of 2000-2018 years were used. The water pollution index (WPI) and the water pollution coefficient (WPC) were used to assess the water quality of the investigated objects. For carrying out the relevant calculations the maximum permissible concentrations for the fishing purpose were applied as the strictest. Summing up the results of the water quality assessment of the investigated objects it is possible to note that the worst WPI can be attributed to the river Tashbunar, where 95% of surface waters are estimated as moderately polluted, influencing significant anthropogenic impact, the level of which is close to the limit of ecosystem stability. River Velykyy Katlabukh has 79% of surface waters of this class, river Yenika has 63%, and Lake Katlabukh has 28%. But according to the estimation of the water pollution coefficient (WPC), the surface waters of the rivers Yenika and Velykyy Katlabukh are the most polluted. Such high pollution rates are provided by heavy metals, chlorides, nitreous nitrogen, which are not included in the methodology of WPI. According to the provided calculations, the highest indicators of water pollution coefficient were obtained for the Yenika River in 2002 -2.88, in 2014 - 2.45, in 2015 -2.54. These waters are classified as moderately polluted. Conclusion. The conducted studies show that currently the sources of water supply in Lake Katlabukh are in an unsatisfactory condition, and according to a lot of indicators of microbiological, biogenic, chemical pollution, as well as the level of mineralization, they exceed regulatory requirements, which makes them unsuitable (without deep cleaning) for water supply to almost all groups of water users. The main reason for the unsatisfactory quality of water in the lake can be considered the low water levels during the last two years and the inability to fill the lake before the lower limited level and the anthropogenic impact of the rivers that flow into the lake and, having very high levels of pollution, worsen the situation even more. In order to improve the state of surface waters in Lake Katlabukh, it is necessary to increase water exchange, preferably with the use of additional forced water supply, taking into account its geographical position, to develop a program of specific measures, to ensure compliance with environmental legislation by all water users.
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Rao, B. Venkateswara, Ch Prem Chand et Md Anwar. « Resistivity Investigation for Mapping Polluted Areas in and Around Hyderabad, India ». Dans Symposium on the Application of Geophysics to Engineering and Environmental Problems 2005. Environment and Engineering Geophysical Society, 2005. http://dx.doi.org/10.4133/1.2923461.

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Venkateswara Rao, B., Ch Prem Chand et Md Anwar. « Resistivity Investigation for Mapping Polluted Areas In and Around Hyderabad, India ». Dans 18th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 2005. http://dx.doi.org/10.3997/2214-4609-pdb.183.177-189.

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Munjin, Ahmad, et Amsal Bakhtiar. « Islam, Oligarchy and Sustainability in Local Indonesia : A Case Study on Polluted Rivers in Banten Province ». Dans International Conference Recent Innovation. SCITEPRESS - Science and Technology Publications, 2018. http://dx.doi.org/10.5220/0009918508420850.

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Bhaskaran, G., et R. Geetha. « Status of Rivers in Tamil Nadu : Problems and Perspectives ». Dans Rejuvenation of Surface Water Resources of India : Potential, Problems and Prospects. Geological Society of India, 2015. http://dx.doi.org/10.17491/cgsi/2013/62888.

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Stehlík, M., K. J. Bal, K. Pant, S. Stehlíková et L. N. Soza. « Statistical analysis for the water quality of rivers of Uttarakhand, India ». Dans THE 5TH INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE IN INFORMATION SYSTEMS (CIIS 2022) : Intelligent and Resilient Digital Innovations for Sustainable Living. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0177425.

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Rapports d'organisations sur le sujet "POLLUTED RIVERS IN INDIA"

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Bisht, Medha. India and Pakistan can future-proof their threatened rivers. Sous la direction de Charis Palmer. Monash University, février 2022. http://dx.doi.org/10.54377/8c11-5fd9.

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Bisht, Medha. India and Pakistan can future-proof their threatened rivers. Sous la direction de Charis Palmer. Monash University, septembre 2022. http://dx.doi.org/10.54377/fa3c-f2a5.

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