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Articles de revues sur le sujet « Water quality statu »

Auteur : Grafiati
Publié le 9 mars 2023
Mis à jour le 10 mars 2023

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1

Vishnoi, Unnati, Jagjeet Kaur et S. K. Pathak. « Water quality of River Ganga in respect of physico-chemical characteristics at Shyampur, District Haridwar ». Environment Conservation Journal 8, no 3 (24 décembre 2007) : 23–26. http://dx.doi.org/10.36953/ecj.2007.080307.

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The water qu ali ty statu s of River Gan ga at Sh yampur was stu di ed with re spec t to physi co–c he mi cal characteristics. Parameters studied were pH, total solids, total dissolved solid, T.S.S., conductivity, alkalinity, hardness, D.O., B.O.D. and C.O.D. The nature of water quality of Ganga with respect to pH is alkaline.
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Shukla, Dr Suresh, et Prof Dr M. A. Singaracharya. « Assessment of Water Quality Status of Godavari river around process industries at Manuguru, Telangana State ». International Journal of Trend in Scientific Research and Development Volume-2, Issue-3 (30 avril 2018) : 159–65. http://dx.doi.org/10.31142/ijtsrd10880.

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Prof. A.B. More, Prof A. B. More, Prof C. S. Chavan Prof. C.S. Chavan, Ajoy Gurung, Pramod Sarwade, Shashikant Chaudhari et Rohit Vyas. « Water Quality Status of Mula-Mutha River ». Global Journal For Research Analysis 3, no 4 (15 juin 2012) : 75–77. http://dx.doi.org/10.15373/22778160/apr2014/24.

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Tamayo, Paul Angelo A. « Water Safety in Schools : Assessment on Water Quality of Water Pipe System at Isabela State University Cauayan City, Isabela, Philippines ». Journal of Advanced Research in Dynamical and Control Systems 12, SP8 (30 juillet 2020) : 789–94. http://dx.doi.org/10.5373/jardcs/v12sp8/20202582.

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Olubanjo, O. O., et E. B. Adeleke. « Assessment of Physico-chemical Properties and Water Quality of River Osse, Kogi State ». Applied Research Journal of Environmental Engineering 3, no 1 (30 avril 2020) : 21–30. http://dx.doi.org/10.47721/arjee20200301030.

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Water is the basis of life and means must be put in place to check its quality for domestic purposes. The river Osse is one of the rivers located in Kabba, Kogi state, and it serves various purposes for the residents of its community. Water samples were collected from 3 stations of Osse river namely; Okoro, Odolu and ABU. These samples were accessed to determine if the water is suitable for domestic purposes. The results of the analyses of the water samples showed that the river had relatively good quality as the dissolved oxygen (DO2) was within the international and local standards i.e. world health organization (WHO) and Nigeria industrial standards (NIS) respectively. The highest value recorded was 0.60 mg/l at station 1 in August and the lowest value was 0.18 mg/l at the same station in May. The highest mean value for the Nitrate concentration of the river was 36.47 mg/l at station 3 and the lowest was 26.12 mg/l at station 2 and this still falls within the standards laid down. TDS, chloride, alkalinity were in the range of 29-70 mg/l, 3.15-30 mg/l and 16-20 m /l respectively and none was above the limit set down by WHO and NIS. The pH level of all the stations throughout the study ranged from 7.4-7.9 meaning they were also within standards. The BOD highest value was 3 and was also within the tolerance range for pure water. The result shows that the River Osse was within the WHO international standard and not above the standards of the local set limits by NIS. Thus, making the river fit and good for domestic purposes. Keywords: Water quality, Physico-chemical property, River Osse, Biological Oxygen Demand, Dissolved Oxygen.
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Goncharuk, V. V. « State-of-the-Art Technologies and Equipment for Obtaining High-Quality Drinking Water ». Science and innovation 11, no 1 (30 janvier 2015) : 80–84. http://dx.doi.org/10.15407/scine11.01.080.

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Osuch, Andrzej, Piotr Rybacki, Ewa Osuch, Mariusz Adamski Mariusz Adamski, Tatiana Buchwald et Żaneta Staszak. « ASSESSMENT OF WATER QUALITY OF LAKE ŁOMNO ». Inżynieria Ekologiczna, no 46 (2016) : 24–30. http://dx.doi.org/10.12912/23920629/61446.

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Zhartybaeva, Meruert, Symbat Tulegenova, Nurlan Muntaev et Zhanar Oralbekova. « Water quality of aquatic ecosystems of Akmola region ». Bulletin of the Karaganda University. “Biology, medicine, geography Series” 108, no 4 (30 décembre 2022) : 34–48. http://dx.doi.org/10.31489/2022bmg4/34-38.

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Currently, the issue of protecting natural resources from polluting and preventing pollution requires worldwide attention. In general, water resources are becoming an invaluable resource that explains the sustainable development of any state. Rational use and protection of water sources is becoming one of the most pressing issues in our country. Pollution of water sources, in turn, affects the deterioration of water quality, living organisms that live in water sources (algae, fish, etc.), and the health of consumers. Since water is the most important resource in the world, it is a task to protect and prevent environmental risk. Therefore, to monitor the aquatic ecosystems of Akmola region, the research team conducted research in laboratory conditions, taking water samples from water bodies (Nura, Ishim Riversand Taldykol, Maybalyk, and Zhaltyrkol Lakes) from a practical trip organized by the research group. Research studies on water samples taken from water bodies showed that the water was polluted, and in some indicators the maximum rural concentration was exceeded. It is clear that pollutants affect water biota, although in most cases they are not the cause. According to water samples, the level of pollution of water sources was assessed. Protection of Water Resources in general from pollutants is one of the strategic tasks of the country.
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Díaz-Casallas, Daissy Milena, Mario Fernando Castro-Fernández, Elvira Bocos, Carlos Enrique Montenegro-Marin et Rubén González Crespo. « 2008–2017 Bogota River Water Quality Assessment based on the Water Quality Index ». Sustainability 11, no 6 (19 mars 2019) : 1668. http://dx.doi.org/10.3390/su11061668.

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This article provides a deep analysis of the water quality at the upper basin of the Bogota River (Colombia) between 2008 and 2017. The Water Quality Index has been the indicator employed to determine the ecological status of the river. This index was chosen in order to normalize the analysis, given that it is commonly used by the Institute of Hydrology, Meteorology and Environmental Studies, a government agency of the Ministry of Environment and Sustainable Development of Colombia, to determine the state of surface effluents. The results obtained were organized in a double-entry matrix in order to relate the variables of the sample period and the sampling station. The research revealed an insufficient quality of water, demonstrating that the high stretch of the Bogota River basin has, in general, regular or acceptable water quality, while only five stations showed an acceptable status. Surprisingly, the stations located close to the wastewater treatment plants of the municipalities of Choconta, Suesca, Gachancipa, and Tocancipa, as well as Rio Negro, have a poor water quality, discharging a high load of contaminants into the river. Although great efforts have been made by Colombian authorities to restore the critical state of the majority of their aquatic ecosystems, recent implementation of policies and instruments have not shown significant achievements yet. For this reason, this study aims to present a powerful decision-tool for the monitoring and evaluation of correction measures implemented on this river basin. The data used in this research were provided by the Regional Autonomous Corporation of Cundinamarca.
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M. M Vaishnav, M. M. Vaishnav, et Milan Hait. « Ground Water Quality Status of Northern and Eastern Zone of Bilaspur Urban Areas, Bilaspur Distt., C.G. (India) ». Indian Journal of Applied Research 3, no 11 (1 octobre 2011) : 49–53. http://dx.doi.org/10.15373/2249555x/nov2013/15.

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Tran, Kim Chi, David Valdes, Jorge Euan, Elizabeth Real et Eloy Gil. « Status of water quality at Holbox Island, Quintana Roo State, Mexico ». Aquatic Ecosystem Health & ; Management 5, no 2 (juin 2002) : 173–89. http://dx.doi.org/10.1080/14634980290031875.

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McCarthy, M. G., et B. G. Coombe. « WATER STATUS AND WINEGRAPE QUALITY ». Acta Horticulturae, no 171 (juillet 1985) : 447–56. http://dx.doi.org/10.17660/actahortic.1985.171.42.

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Picińska-Faltynowicz, Joanna. « Epilithic diatoms as indicators of water quality and ecological status of streams of Sudety Mountains (South-Western Poland) ». River Systems 17, no 3-4 (6 novembre 2007) : 287–305. http://dx.doi.org/10.1127/lr/17/2007/287.

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Derevenskaya, Olga Yurjevna, Evgenia Sergeevna Prytkova et Elena Nikolaevna Unkovskaya. « Zooplankton as Water Quality Indicator in Shallow Lakes ». Journal of Computational and Theoretical Nanoscience 16, no 11 (1 novembre 2019) : 4486–90. http://dx.doi.org/10.1166/jctn.2019.8341.

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Long-term studies (1998–2018) of shallow lakes Krugloe and Krutoe (Russia) were carried out. The trophic status of the lakes was estimated using physicochemical parameters of water and the indicators of zooplankton. Physicochemical studies of Krugloe and Krutoe lake water make it possible to classify these reservoirs as eutrophic according to their trophic status. The lakes are characterized by low water transparency, a high content of organic substances in water, the “blooming” of water is observed periodically, accompanied by the increase of pH to 8–9 units. The zooplankton communities of Krugloe and Krutoe lakes are characterized by relatively low species richness, the dominance of a small number of species, and the predominance of species that are indicators of eutrophic waters. Quantitative indicators of zooplankton are characterized by significant fluctuations in values over the years, the prevalence of rotifers. They showed that zooplankton community is a good indicator of the trophic state of lakes. Such indicators of zooplankton communities as the composition of dominant species, their number, the presence of indicator species, the quantitative indicators of zooplankton and individual taxonomic groups, and the average individual mass of the zooplankton can be used to characterize the trophic status of lakes. They can be recommended for use during monitoring of the lake condition in the Volga-Kama State Natural Biosphere Reserve.
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Inga-Hancco, Maylee, Adamari Indigoyen-Porras, Sergio Parra-Alarcón, Juan Cerrón-Aliaga et Wagner Vicente-Ramos. « Social Progress Index for Urban and Rural Areas of a Region : Evidence from Peru ». Statistika : Statistics and Economy Journal 101, no 4 (17 décembre 2021) : 422–35. http://dx.doi.org/10.54694/stat.2021.7.

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The present study describes the methodological process proposed by the Social Progress Imperative Global Organization to calculate the Social Progress Index in urban and rural areas of the province of Huancayo, Peru, in 2020. The survey was based on 229 observations regarding basic human needs, foundations of well-being and opportunities. The result produced an index of 56.04 for urban areas and 53.98 for rural areas; results that are in the low and low middle range respectively, identifying deficiencies in the quality of economic policies, with respect to the sanitation service, where more than 30% do not have access to drinking water, and others. It was concluded that the index showed no improvement with respect to 2019, likewise the social gaps still persist and the well-being of the aforementioned population was not increased.
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Adamu, G., M. Sallau, S. Idris et E. Agbaji. « Quality Status of Kafin-chiri Reservoir, Kano State, Nigeria for Drinking Water Supply ». Chemical Science International Journal 17, no 3 (10 janvier 2016) : 1–9. http://dx.doi.org/10.9734/csji/2016/29863.

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Pramaningsih, Vita, Agus Dwi Purwanto, Ratna Yuliawati et Deny Kurniawan. « Water Quality Status and Water Quality Index of Selulu Reservoir, East Kalimantan, Indonesia ». IOP Conference Series : Earth and Environmental Science 1111, no 1 (1 décembre 2022) : 012039. http://dx.doi.org/10.1088/1755-1315/1111/1/012039.

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Abstract Selulu Reservoir is located in Waru District, North Panajam Paser Regency. It is one of the tourist destinations in supporting the tourism sector. Land use changes and urbanization have potential impacts on the environment. This study aimed to determine Water Quality Status and Water Quality Index (WQI) in Selulu Reservoir. Hopefully, the result will become the basis for future reservoir management to keep the water quality well. The method in this study used the survey method. These research steps include surveys, water samples, laboratory analysis, and data analysis. Parameters analyzed include temperature, pH, BOD, COD, and DO. The results showed that the reservoir’s water quality in all samples still met the standard, except for pH at point 3. The difference fluctuating value found in COD at point 3, although it still meets the standard. This location is close to residential areas that dump their waste into the reservoir. The Water Quality Status of the reservoir still meets the standards, and WQI is in the excellent category. This is due to the dominant land use of forest and plantations with few settlements around the reservoir, domestic waste is small, and the reservoir capacity is still supportive. Management is needed to maintain reservoir water quality in the future.
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dos Santos Alves, Wellmo, Wilker Alves Morais, Lucas Duarte Oliveira, Maria Antonia Balbino Pereira, Alécio Perini Martins, Simonny Montthiel Araújo Vasconcelos et Fernanda Luisa Ramalho. « Análise das relações entre uso do solo e qualidade da água do Lago Bonsucesso, em Jataí, Estado de Goiás, Brasil ». Revista Brasileira de Geografia Física 12, no 1 (2019) : 326–42. http://dx.doi.org/10.26848/rbgf.v12.1.p326-342.

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Pompêo, Marcelo, et Viviane Moschini-Carlos. « Avaliação da degradação da qualidade da água do reservatório Carlos Botelho em Itirapina, São Paulo, Brasil, por meio de imagens do satélite Sentinel 2 ». Engenharia Sanitaria e Ambiental 27, no 2 (avril 2022) : 279–90. http://dx.doi.org/10.1590/s1413-415220210002.

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RESUMO Este estudo avaliou a qualidade da água do reservatório Carlos Botelho, SP, Brasil, empregando a base de dados da Companhia Ambiental do Estado de São Paulo para os anos de 2017 a 2019. Foram utilizadas as concentrações de clorofila a e o número de células de cianobactérias, relacionando-os com o algoritmo de processamento de imagens da Agência Espacial Europeia. Foram utilizadas imagens dos satélites Sentinel 2, com resolução espacial de 10 m e correção atmosférica Case 2 Regional Coast Color. Os dados de clorofila a da Companhia Ambiental do Estado de São Paulo e os estimados pelo algoritmo apresentaram alta correlação (R²=0,6052, RNMSE=27%, n=8) e também se relacionaram estatisticamente com o número de células de cianobactérias, o que permitiu estimar o número de células de cianobactérias nas imagens S2, por meio das concentrações de clorofila. Com base nas estimativas, o reservatório Carlos Botelho apresentou padrão eutrófico em praticamente o ano de 2020; os dados sugerem a presença e substancial predomínio de cianobactérias em toda massa de água e durante todo 2020 (da ordem de 10.000 a 20.000 células.mL); na sua água já foi constatada a presença de cianotoxinas potencialmente tóxicas; o reservatório possui uma praia pública, para recreação de contato primário; e tem no entorno condomínios com casas, clubes e chácaras. Este conjunto de características deve servir de alerta às autoridades locais, pois há necessidade para se discutir o programa de monitoramento ora em curso, com indicação da redução do monitoramento para no mínimo mensal e avaliações complementares, para verificação periódica da presença de cianotoxinas.
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Raman, Bai V., Reinier Bouwmeester et S. Mohan. « Fuzzy Logic Water Quality Index and Importance of Water Quality Parameters ». Air, Soil and Water Research 2 (janvier 2009) : ASWR.S2156. http://dx.doi.org/10.4137/aswr.s2156.

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Determination of status of water quality of a river or any other water sources is highly indeterminate. It is necessary to have a competent model to predict the status of water quality and to advice for type of water treatment for meeting different demands. One such model (UNIQ2007) is developed as an application software in water quality engineering. The unit operates in a fuzzy logic mode including a fuzzification engine receiving a plurality of input variables on its input and being adapted to compute membership function parameters. A processor engine connected downstream of the fuzzification unit will produce fuzzy set, based on fuzzy variable viz. DO, BOD, COD, AN, SS and pH. It has a defuzzification unit operative to translate the inference results into a discrete crisp value of WQI. The UNIQ2007 contains a first memory device connected to the fuzzification unit and containing the set of membership functions, a secondary memory device connected to the defuzzification unit and containing the set of crisp value which appear in the THEN part of the fuzzy rules and an additional memory device connected to the defuzzification unit. More advantageously, UINQ2007 is constructed with control elements having dynamic fuzzy logic properties wherein target non-linearity can be input to result in a perfect evaluation of water quality. The development of the fuzzy model with one river system is explained in this paper. Further the model has been evaluated with the data from few rivers in Malaysia, India and Thailand. This water quality assessor probe can provide better quality index or identify the status of river with 90% perfection. Presently, WQI in most of the countries is referring to physic-chemical parameters only due to great efforts needed to quantify the biological parameters. This study ensures a better method to include pathogens into WQI due to superior capabilities of fuzzy logic in dealing with non-linear, complex and uncertain systems.
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Pati, Ramesh Chandra, et Swoyam P. Rout. « Water Quality Status of Baitarani River Basin ». Asian Journal of Research in Chemistry 10, no 6 (2017) : 732. http://dx.doi.org/10.5958/0974-4150.2017.00124.9.

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Morris, John C. « State Implementation of National Water Quality Policy ». Public Works Management & ; Policy 3, no 4 (avril 1999) : 317–30. http://dx.doi.org/10.1177/1087724x9934004.

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Singh, Gurdeep, et Rakesh Kamal. « Application of Water Quality Index for Assessment of Surface Water Quality Status in Goa ». Current World Environment 9, no 3 (31 décembre 2014) : 994–1000. http://dx.doi.org/10.12944/cwe.9.3.54.

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Jain, Chandana, Ritu Mendiratta, Antony Nitin Raja et Rohit Singh Hada. « Studies on Changes in Ground Water Quality Status in Pre-Monsoon and Post-Monsoon Season in Shivpuri District of Madhya Pradesh, India ». International Journal of Scientific Research 2, no 7 (1 juin 2012) : 78–80. http://dx.doi.org/10.15373/22778179/july2013/26.

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Salla, Marcio Ricardo, Nathália Barcelos Cunha et Sérgio Siqueira Prado Soares. « Modelagem de qualidade da água no rio São Marcos, bacia hidrográfica do alto Paraná ». Revista DAE 221, no 68 (10 décembre 2019) : 20–41. http://dx.doi.org/10.36659/dae.2020.003.

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A bacia hidrográfica do rio São Marcos, localizada no alto Paraná entre os estados de Goiás e Minas Gerais e o Distrito Federal, apresenta conflito hídrico de grande relevância entre o setor hidrelétrico (operação em cascata das centrais hidrelétricas Batalha – potencial de 52,5 MW e Serra do Facão – potencial de 210 MW) e o setor agrícola (total outor- gado de 65,7 hm3/mês em meados de 2017). O objetivo deste artigo foi avaliar a carga máxima afluente de amônia, nitrato e fósforo total que os reservatórios suportam para ainda se enquadrar aos limites definidos na Resolução Co- nama 357:2005. A calibração do modelo a partir da ferramenta AQUATOOL, entre outubro de 2014 e setembro de 2017, forneceu bom ajuste entre as simulações e os dados medidos (para os parâmetros OD, DBO, nitrogênio orgâni- co, amônia, nitrato e fósforo total) em quatro postos de monitoramento. Os cenários mostraram capacidade máxima de aporte de 4,19, 9,18 e 0,055 ton/km2.mês de amônia, nitrato e fósforo total, respectivamente, para as sub-bacias de contribuição de Batalha e de 1,30, 3,34 e 0,019 ton/km2.mês de amônia, nitrato e fósforo total, respectivamente, nas sub-bacias de contribuição de Serra do Facão, todas a jusante do reservatório de Batalha. De forma geral, o estu- do contribui para o planejamento e gestão de uso e ocupação do solo na bacia hidrográfica do rio São Marcos. Palavras-chave: Modelagem. Conflito hídrico. AQUATOOL. Rio São Marcos. Uso e ocupação do solo. São Marcos river watershed is located in the state of Paraná, Brazil, between the states of Goiás, Minas Gerais and the Federal District. It presents a relevant hydric conflict between the hydroe-lectric sector (cascade operation of the Batalha hydroelectric plant - 52.5 MW of potential and Serra do Facão - 210 MW of potential) and the agricultural sector (grant- ed of 65.7 hm3/month in 2017). This article aimed to assess the maximum affluent total load of ammonia, nitrate and phosphorus that the dams support and still be framed within the limits defined in the 357:2005 Conama Resolution. The model's calibration in AQUATOOL computational tool, between October 2014 and September 2017, provided a good ad- justment between the simulations and the measured data ( for the OD, DBO, organic nitrogen, ammonia, nitrate and total phosphorus) in four monitoring positions located in São Marcos River. The scenario has showed a maximum contribution capacity of 4.19, 9.18 e 0.055 ton/km2.month of ammonia, nitrate and total phosphorus, respectively, in the contribu- tions sub watersheds in Batalha and of 1.30, 3.34 and 0.019 ton/km2.month of ammonia, nitrate and phosphorus in the contributions sub watersheds in Serra do Facão. In general, the study contributed for the planning and management of the soil use and occupation on the watershed.
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GAVRILESCU, Elena, et Gilda Diana BUZATU. « Water Quality of Some Lakes in Dolj County ». Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture 70, no 2 (25 novembre 2013) : 370–76. http://dx.doi.org/10.15835/buasvmcn-agr:9679.

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In Dolj County there are a number of lakes that are particularly important, because they have a large quantity of water, some of them originating from hydrotechnical accumulations, and other from natural waters. In the present study, it was performed the monitoring of the water quality of the lakes in Dolj County, in the year of 2012, namely: Victoria - Geormane, Bistreţ and Caraula. The ecological conditions of the natural and artificial lakes was established based on the state of acidification, of the oxygen regime (dissolved oxygen, biochemical oxygen demand and chemical oxygen demand), the degree of eutrophication (biogenic substances, phytoplankton biomass and chlorophyll “a”) and also based on transparency. The water samples were taken from three points: tail, middle and upstream of the lake and were analyzed using high performance equipment, namely: pH-meter, spectrophotometer DR 2010, Sechi disc, BOD5 system. In terms of the degree of eutrophication, the water from the studied lakes belongs to the third category of water quality. Geormane is a natural lake which has a very good ecological status, except regarding the eutrophication, which is considerably visible. Bistret lake has a good environmental status and is visible eutrophic. Caraula lake’s water belongs to the third category of water quality, being heavily eutrophic.
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C.A., Parvathy, Vimala K. John et Meharban M.P. « Evaluation of Water Quality in Thrissur-Malappuram Kole Wetlands of Kerala using Water Quality Index ». International Journal of Zoological Investigations 08, no 02 (2022) : 171–78. http://dx.doi.org/10.33745/ijzi.2022.v08i02.022.

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This study assessed water quality of Kole wetlands in Thrissur-Malappuram which serves as a natural water reservoir. The Kole wetland water samples were collected from the four study areas and the chemical parameters were analysed. The Water Quality Index (WQI) was computed by weighted arithmetic index method. The WQI and possible usage of each category was analysed. It was observed that WQI of the site-1 and site-3 indicated “very poor” and “poor” water quality status, respectively. The site-2 represented very good status in water quality index and the site-4 indicated high pollution regarding WQI status and categorised as “unfit for consumption” and need proper treatment before use
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Daud, M. K., Muhammad Nafees, Shafaqat Ali, Muhammad Rizwan, Raees Ahmad Bajwa, Muhammad Bilal Shakoor, Muhammad Umair Arshad et al. « Drinking Water Quality Status and Contamination in Pakistan ». BioMed Research International 2017 (2017) : 1–18. http://dx.doi.org/10.1155/2017/7908183.

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Due to alarming increase in population and rapid industrialization, drinking water quality is being deteriorated day by day in Pakistan. This review sums up the outcomes of various research studies conducted for drinking water quality status of different areas of Pakistan by taking into account the physicochemical properties of drinking water as well as the presence of various pathogenic microorganisms. About 20% of the whole population of Pakistan has access to safe drinking water. The remaining 80% of population is forced to use unsafe drinking water due to the scarcity of safe and healthy drinking water sources. The primary source of contamination is sewerage (fecal) which is extensively discharged into drinking water system supplies. Secondary source of pollution is the disposal of toxic chemicals from industrial effluents, pesticides, and fertilizers from agriculture sources into the water bodies. Anthropogenic activities cause waterborne diseases that constitute about 80% of all diseases and are responsible for 33% of deaths. This review highlights the drinking water quality, contamination sources, sanitation situation, and effects of unsafe drinking water on humans. There is immediate need to take protective measures and treatment technologies to overcome unhygienic condition of drinking water supplies in different areas of Pakistan.
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Journal, Baghdad Science. « Assessment of Water Quality and Trophic Status of Duhok Lake Dam ». Baghdad Science Journal 14, no 2 (4 juin 2017) : 335–42. http://dx.doi.org/10.21123/bsj.14.2.335-342.

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This study is conducted in order to, investigate the trophic state of Duhok Lake Dam located within Duhok city, Iraq. Water samples are collected seasonally from three monitored sites during 2011. The parameters used for assessing water quality and trophic status level include: water temperature, pH, EC, TDS, DO, BOD5, nutrients, Secchi disk transparency, and chlorophyll a. The results reveal that DO is above 5 mg.l-1 in all sites, BOD5 value is within permissible level for domestic uses. Water quality considered as a hard type. High sulfate concentration is recorded during the study period. Trophic state shows that water type is classified as mesotrophic during autumn season, while it is regarded as eutrophic in other seasons. TDN/TDP ratio suggests that phosphorus is a limiting factor for algal growth. Based on IWQI, the water type is classified as excellent type for irrigation purpose.
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Al-Deen Ahmed, Mohammed Fakhar. « Evaluation of Ground Water Quality Status by Using Water Quality Indices at Basheqa Region, Iraq ». Tikrit Journal of Engineering Sciences 23, no 2 (31 mai 2016) : 54–64. http://dx.doi.org/10.25130/tjes.23.2.07.

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Large areas of BASHEQA region haven't any source of surface water, at the same time, there are large quantities of olives trees and crops depend in its irrigating on Ground Water (GW) as a main source. So it is important to evaluate its (GW) for different uses. In this study the (GW) of 32 wells had been examined in the college of environmental science and technology laboratories to assess its Water Quality (WQ) for drinking, irrigation, and livestock purposes. Average twelve parameters (pH, Ca, Mg, Na, HCO3, SO4, Cl, NO3, EC, TDS, SAR, TH) data in the period 2008-2009 had been applied in three methods through computing Water Quality Indices (WQIS). The first method was the Weighted Average (WAV). The second one was that adopted by Ministry of Nature and Environment (MNE) of Mongolia, while the last one was the Canadian Council of Ministers of the Environment (CCME). The (WQIs) of the three methods results had been compared to assess the suitability of the best one. Although the statistical analysis indicated that there are no significant differences between both (CCME) and (WAV) methods, the (WAV) data had been used in this study as it gave more restrictive control. The analysis of (WQIs) using (WAM) method indicated that (25, 69, 88)% of (GW) are good for drinking, irrigation, and livestock purposes respectively.
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Reza, Rizwan, et Gurdeep Singh. « Application of water quality index for assessment of pond water quality status in Orissa, India ». Current World Environment 5, no 2 (25 décembre 2010) : 305–10. http://dx.doi.org/10.12944/cwe.5.2.13.

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Nida, Nida, Mijani Rahman et Abdur Rahman. « THE RELATIONSHIP WATER QUALITY STATUS METHODS POLLUTION INDEX WITH ACTIVITIES OF FLOATING NET CAGE IN THE RIAM KANAN DAM ». Fish Scientiae 7, no 1 (23 juin 2017) : 1. http://dx.doi.org/10.20527/fs.v1i1.4174.

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This study aims to determine the status of water quality in the Riam Kanan Reservoir seen from the physical parameters (Temperature and Brightness) and chemical parameters (pH, DO, Total Phosphate, Nitrate and Ammonia) using Pollution Index (IP) method, knowing trophic level in Riam Kanan reservoir seen from the parameter of Brightness, Total Phosphate and Total Nitrogen and know the influence of floating net cage activity to water quality status of Riam Kanan reservoir.Of the result on measurement of IP method water quality which based on the, the status of water quality in station 1, 2, and 3 was complied with water quality standard (good condition), either for class I, II, III, or IV. Based on the regulation of the state minister for environment Number 28 Year 2009 was found that the fertility level in station 1, 2, and 3 was in the same trophic status, which was oligotrophic. The value of thit nitrate (X1), total P (X2) and ammonia (X3) either for class I, II, III, or IV was lower than ttabel for significance in 5% or sig/.probability > 0,05 which meant that H0 was accepted; KJA activities did not affect the water quality status of Riam Kanan dam.
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Harikumar, P. S., Anisha Aravind et Sandra Vasudevan. « Assessment of Water Quality Status of Guruvayur Municipality ». Journal of Environmental Protection 08, no 02 (2017) : 159–70. http://dx.doi.org/10.4236/jep.2017.82013.

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Troiano, John. « Ground Water Quality Protection : State and Local Strategies ». Journal of Environmental Quality 16, no 2 (avril 1987) : 193. http://dx.doi.org/10.2134/jeq1987.00472425001600020024x.

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Telang, Sanjay, et Anoop Chaturvedi. « Status of ground water quality in Bhopal city ». Current World Environment 3, no 2 (20 décembre 2008) : 313–16. http://dx.doi.org/10.12944/cwe.3.2.19.

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Örlander, Göran, et Gunnel Rosvall‐Åhnebrink. « Evaluating seedling quality by determining their water status ». Scandinavian Journal of Forest Research 2, no 1-4 (janvier 1987) : 167–77. http://dx.doi.org/10.1080/02827588709382455.

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FUJIWARA, Masahiro. « Present status and problems in water quality management. » Journal of Environmental Conservation Engineering 15, no 1 (1986) : 11–15. http://dx.doi.org/10.5956/jriet.15.11.

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Burke, Michael E., et George A. Stasko. « Organizing Water Quality Districts in New York State ». Journal - American Water Works Association 79, no 10 (octobre 1987) : 39–41. http://dx.doi.org/10.1002/j.1551-8833.1987.tb02921.x.

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Fawcett, H. H. « Ground water quality protection : State and local strategies ». Journal of Hazardous Materials 14, no 3 (octobre 1987) : 396. http://dx.doi.org/10.1016/0304-3894(87)85013-6.

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Jin, Dian. « Application of remote sensing technology in water quality monitoring ». Highlights in Science, Engineering and Technology 17 (10 novembre 2022) : 91–98. http://dx.doi.org/10.54097/hset.v17i.2511.

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Water is the source of life, and water quality is one of the world's significant environmental problems today; the current state of water quality problems is worrying. Traditional water quality monitoring methods usually use buoys to carry sensors or manual sampling for real-time field water quality monitoring. These methods, although the monitoring accuracy is high, are labor-intensive, expensive and time-consuming. Remote sensing technology now occupies an increasingly important position in water quality monitoring because of its low cost, wide range and fast response time. This study introduces the research status and development problems of water quality remote sensing monitoring neighborhood from water quality remote sensing principle, data source, indicators, and monitoring methods. Results show that the data source mainly contains satellite and emerging UAV data. The remote sensing indicators typically include FUI, suspended solids, CDOM, Chl-a, and TN; Traditional methods like empirical and semi-empirical methods, and developing methods like analytic method and the surging machine learning and automation methods.
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Hasibuan, Ika Fitria, Sigid Hariyadi et Enan Mulyana Adiwilaga. « Water Quality State and Trophic of PLTA Koto Panjang Reservoir, Riau Province ». Jurnal Ilmu Pertanian Indonesia 22, no 3 (27 décembre 2017) : 147–55. http://dx.doi.org/10.18343/jipi.22.3.147.

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Suhartawan, Basuh, Santje Iriyanto, Alfret B. Alfons et Daawia Daawia. « STATUS MUTU AIR SUMUR GALI DAN PENGENDALIANNYA DI PEMUKIMAN PIR2 ARSO KABUPATEN KEEROM ». DINAMIS 19, no 2 (20 décembre 2022) : 96–102. http://dx.doi.org/10.58839/jd.v19i2.1149.

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Utilizing hygienic and sanitary water is absolutely necessary to avoid unwanted negative impacts. This research was conducted in PIR 2, Arso, Keerom Regency from August to October 2022. This research aims to determine the quality status of dug well water by using the pollution index method with 18 (eighteen) water pollution parameters namely: physical parameters (turbidity, color, TDS, temperature, taste and smell), chemical parameters (pH, iron, fluoride, hardness, manganese, nitrate, nitrite, cyanide, detergents and total pesticides) as well as biological parameters (total Coliform and Escherichia coli). The samples in this research were taken from four sample points (research stations), namely station 1 (line 1), station 2 (line 2), station 3 (line 3) and station 4 (line 4). The results showed that the water quality status of dug wells at stations 2 and 3 obtained a pollution index of 10.28 and 12.72 respectively and classified as heavily polluted, while at stations 1 and 4 the pollution index was 2.38 and 4.80 respectively and both stations were classified as lightly polluted. Water parameters that did not qualify water quality standards were turbidity, iron content and Escherichia coli. A suitable water management plan to fulfill the quality standard requirements was the well water must be filtered using zeolite media, sand, palm fiber and activated carbon (coconut shell charcoal) and added a little chlorine (chlorine) or alum to the reservoir before filtration.
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Sawestri, Sevi, Ni Komang Suryati et Dina Muthmainnah. « Determination of potential fisheries areas based on trophic status (Case study in Situ Gede, Tasikmalaya) ». Depik 10, no 2 (19 mai 2021) : 91–97. http://dx.doi.org/10.13170/depik.10.2.20177.

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Situ Gede is one of the artificial lakes/reservoirs in Tasikmalaya, West Java. The lake has functioned as a source of household water needs, fisheries, and tourism. According to determine the development of water management requires information on the trophic status and water quality. This study aimed to obtain information on the trophic status and water quality of Situ Gede. The research was conducted in Situ Gede, Tasikmalaya, West Java, in 2018. Measurement and analysis of water quality parameters used the SNI and APHA methods, while the measurement of trophic status used the Carlson Trophic State Index (TSI). The relationship between water quality parameters and TSI scores was analyzed using Statistica version 8. Based on the analysis, the trophic status of Situ Gede ranged from 69.06-79.04, with an average of 74.61. This value indicated that Situ Gede's trophic status was on a eutrophic level. The physical and chemical parameters that affect the trophic status of Situ Gede are TP, pH, conductivity, TDS, and temperature. The TP values, conductivity, pH, and temperature at Situ Gede were still categorized as normal. The trophic of Situ Gede can be a source of fish growth. Moreover, in general, Situ Gede waters still have sufficient water quality for fish life. Therefore, Situ Gede has the potential to capture fisheries, recreational fisheries, and aquaculture.Keywords:Trophic statusSitu GedeFisheryChlorophyll-aFish Reserve
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Sudipa, Nyoman, Made Sudiana Mahendra, Wayan Sandi Adnyana et Ida Bagus Pujaastawa. « STATUS KUALITAS AIR DI KAWASAN PARIWISATA NUSA PENIDA ». ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) 14, no 2 (24 décembre 2020) : 181. http://dx.doi.org/10.24843/ejes.2020.v14.i02.p08.

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Environmental water quality is very influential on environmental sustainability and tourism in the Nusa Penida Tourism Area. Changes in environmental water quality are influenced by human activities in utilizing environmental resources. As a developing tourism area, Nusa Penida has a source of environmental water from springs, groundwater and has marine waters with biodiversity that become underwater paradise. The method used by analyzing water quality uses a standardized quality approach based on Bali Governor's Regulation No. 16 of 2016 concerning Environmental Quality Standards and Environmental Damage Quality Criteria and to find out the water pollution index using the approach of the Decree of the Minister of Environment No. 51 of 2004, then compared with environmental water quality using environmental water quality tests that have been carried out in the Study of Analysis Regarding the Environmental Impact of the Nusa Penida Tourism Area in 1998.Tests for the quality of sea water, well water and spring water in 2019 each showed relatively better results compared to the results of quality tests for sea water, well water and spring water in 1998. Influential parameters The index of sea water pollution, well water and spring water in Nusa Penida are turbidity parameters, free ammonia (NH3-N) dissolved residue (TDS) and total coliform, respectively.Keywords: environment; quality; water; tourism; Nusa Penida.
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Adimasu, Woldesenbet Worako. « Evaluation of the water quality status of Lake Hawassa by using water quality index, Southern Ethiopia ». International Journal of Water Resources and Environmental Engineering 7, no 4 (30 avril 2015) : 58–65. http://dx.doi.org/10.5897/ijwree2014.0528.

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Lencha, Semaria Moga, Jens Tränckner et Mihret Dananto. « Assessing the Water Quality of Lake Hawassa Ethiopia—Trophic State and Suitability for Anthropogenic Uses—Applying Common Water Quality Indices ». International Journal of Environmental Research and Public Health 18, no 17 (24 août 2021) : 8904. http://dx.doi.org/10.3390/ijerph18178904.

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The rapid growth of urbanization, industrialization and poor wastewater management practices have led to an intense water quality impediment in Lake Hawassa Watershed. This study has intended to engage the different water quality indices to categorize the suitability of the water quality of Lake Hawassa Watershed for anthropogenic uses and identify the trophic state of Lake Hawassa. Analysis of physicochemical water quality parameters at selected sites and periods was conducted throughout May 2020 to January 2021 to assess the present status of the Lake Watershed. In total, 19 monitoring sites and 21 physicochemical parameters were selected and analyzed in a laboratory. The Canadian council of ministries of the environment (CCME WQI) and weighted arithmetic (WA WQI) water quality indices have been used to cluster the water quality of Lake Hawassa Watershed and the Carlson trophic state index (TSI) has been employed to identify the trophic state of Lake Hawassa. The water quality is generally categorized as unsuitable for drinking, aquatic life and recreational purposes and it is excellent to unsuitable for irrigation depending on the sampling location and the applied indices. Specifically, in WA WQI, rivers were excellent for agricultural uses and Lake Hawassa was good for agricultural uses. However, the CCME WQI findings showed rivers were good for irrigation but lake Hawassa was marginal for agricultural use. Point sources were impaired for all envisioned purposes. The overall category of Lake Hawassa falls under a eutrophic state since the average TSI was 65.4 and the lake is phosphorous-deficient, having TN:TP of 31.1. The monitored point sources indicate that the city of Hawassa and its numerous industrial discharges are key polluters, requiring a fast and consequent set-up of an efficient wastewater infrastructure, accompanied by a rigorous monitoring of large point sources (e.g., industry, hospitals and hotels). In spite of the various efforts, the recovery of Lake Hawassa may take a long time as it is hydrologically closed. Therefore, to ensure safe drinking water supply, a central supply system according to World Health organization (WHO) standards also for the fringe inhabitants still using lake water is imperative. Introducing riparian buffer zones of vegetation and grasses can support the direct pollution alleviation measures and is helpful to reduce the dispersed pollution coming from the population using latrines. Additionally, integrating aeration systems like pumping atmospheric air into the bottom of the lake using solar energy panels or diffusers are effective mitigation measures that will improve the water quality of the lake. In parallel, the implementation and efficiency control of measures requires coordinated environmental monitoring with dedicated development targets.
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Miedviediev, O., et O. Miedviedieva. « WATER QUALITY OF LAKE KATLABUKH ». Modern construction and architecture, no 2 (28 décembre 2022) : 97–103. http://dx.doi.org/10.31650/2786-6696-2022-2-97-103.

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The soil and thermal resources of the Odessa region allow growing a variety of agricultural crops with a yield much higher than currently obtained. But this is possible only when using irrigation. The southwestern part of the region has such a powerful source of water as the Danube River, from which irrigation is carried out and the lakes Cahul, Yalpug, Katlabukh, China and a number of reservoirs are filled. For a number of reasons, after 2000 the actual amount of irrigated land has decreased significantly. Along with this, the quality of water in reservoirs changes, and sometimes they disappear from the map. At the state level, various programs are being adopted to restore irrigation in the southern regions of Ukraine without understanding the presence and hydrochemical composition of the waters of reservoirs. To do this, it is necessary to conduct a detailed analysis of the presence of water bodies and assess their chemical composition. This work is devoted to one of the sources of water supply for the national economy, namely Lake Katlabukh. Lake Katlabukh is used as the main source of irrigation for three state systems - Suvorivskaya, Izmailskaya and Kislytskaya (formerly Kirovskaya) irrigation systems (IS) and small irrigation areas (SIA) on an area of 16.671 hectares. In addition, the Loschinivske, Kaminske, Banivske and Muravlivske reservoirs were additionally filled with lake waters to irrigate 22063 hectares within the limits of the Loschinivske, Tashbunarske, Muravlivske and Banivske IS and the SIA adjacent to them. The aim of the work is to analyze the hydrochemical state and assess the quality of water according to agronomic criteria over a thirty-year period of one of the lakes, the waters of which have been and continue to be used for irrigation. To solve this problem, materials of hydrochemical observations were collected and processed. The main indicators of anionic and cationic composition, mineralization index and pH are summarized and averaged for every five years from 1991 to 2020. Separately, data for 2021 is given. To assess the quality of water according to agronomic criteria, all indicators were calculated according to the latest methodology. The main reasons for the deterioration of water quality have been identified.
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Dai, Ben Lin, Zu Lin Hua, Xu Hua Yu, Xiao Hui Jiang, Ke Jian Chu et Yu Long He. « Comparative Analysis on Offshore Water Quality Status : A Case Study of Haizhou Bay, China ». Advanced Materials Research 204-210 (février 2011) : 1467–71. http://dx.doi.org/10.4028/www.scientific.net/amr.204-210.1467.

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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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S. A., Ngah, et Ekpebegh U.N. « Status of Water Supply in Parts of Umuahia South Local Government Area, Abia State, Nigeria : A Look at Alternatives ». Journal of Advance Research in Applied Science (ISSN : 2208-2352) 3, no 4 (30 avril 2016) : 40–56. http://dx.doi.org/10.53555/nnas.v3i4.650.

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The study investigated the water supply sources in Old Umuahia semi-urban district in Abia State, Nigeria. Emphasis was on the quality and quantity of available water sources. Some socio-economic considerations such as family sizes, proximity of source, quality and quantity of water actually used per day as compared with quantity required per day were all evaluated. Water supply shortfall was hence evaluated and quantified. Different sources of water in use were evaluated. They include motorized boreholes, Springs, Streams, commercial water vendors and harvested rainwater. The study showed that the majority of residents had bread winners who were civil servants (48%) with an average family size of 5-8 people. Most people practice conjunctive water use of water combining more than one source with comparative advantages. 89% of the people depend on water boreholes for their drinking water supplies. Available hydrogeological data from the area were reviewed. The area was found to be underlain by a prolific aquifer capable of sustainably supplying the area. Water samples were collected from the different water sources and analysed for concentration of key physico-chemical parameters such as pH, Dissolve d Oxygen, conductivity, turbidity, totaldissolved solids, total hardness, chloride, salinity, total alkalinity, copper, iron, manganese, sulphate, chromium, colour and zinc. The results were compared with World Health Organisation (WHO) standards for domestic water supply. From the results, water in the area was found to be acidic with pH values ranging from 4.9 to 5.15 (mean value, 5.02). All the other physico-chemical parameters showed values that plot within the limit of acceptability of WHO standards except for two boreholes sources, two streams sources and samples from the commercial water vendors whose water samples indicated serious bacteriological contamination. Supplies from groundwater sources is of highest quality. Since the area is underlain by aquifers with excellent water yielding properties, the studyrecommended the development of water supply in the area mainly from groundwater sources. This will require additional hydrogeological studies to determine the number, location and depths of new boreholes to serve the domestic water demands of the inhabitants of the area. Existing four boreholes are grossly inadequate to meet and sustain the domestic water needs of about 8000 people who presently inhabit the area. Similarly, people should be discouraged from using the water from commercial water vendors for domestic purposes. This will drastically reducethe incidence of water-borne diseases in the area
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Dunaieva, Ielizaveta, Valentyna Popovych, Valentyn Vecherkov, Ekaterina Golovastova, Vladimir Pashtetskyi, Aleksandr Melnichuk, Wilfried Mirschel et al. « Water quality analysis and simulation ». MATEC Web of Conferences 265 (2019) : 06005. http://dx.doi.org/10.1051/matecconf/201926506005.

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The actuality of the study is caused by the needs of water resources state assessment, which natural supply is insufficient. The article analyzes the quality of surface water and groundwater using processed statistical data and the results of mathematical modeling in the GIS environment. The results showed that the quality of water sources under current anthropogenic load is normal, but subsequent monitoring of the situation is required. There is no significant relationship between the quality of surface water and groundwater.
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