scholarly journals Status, Importance and Major Issues in Water Source in Watershed of Chitwan, Nepal

2020 ◽  
Vol 17 ◽  
pp. 135-154
Author(s):  
Prerana Shrestha ◽  
Bikram Manandhar ◽  
Nabin Dhungana ◽  
Sujan Rajbhandari

Khageri Khola sub-watershed of the Chitwan district is stressed by climate change and is facing changes in its water source. The main objective of this study was to assess the status of water sources, their importance, water source issues, and distribution of water sources as well as to suggest appropriate conservation and management measures. Various participatory tools such as household interviews, focus group discussions and stakeholder’s consultations were used. In total, 56 water sources were identified in eight micro-watersheds in Khageri Khola sub-watershed. The overall water sources were found decreasing with moderate (43%) to insufficient (32%) amount of water available for drinking. People meet their current water demand through tap water (43%) and tube wells/wells (38%). Conservation and management measures such as tree plantation, solar planning (solar power for water pumping system) for wildlife, construction of water tanks and bamboo plantation have been adopted. Hence, upstream soil erosion should be reduced to save downstream sources from flash floods by emphasizing land use planning. Regular observation, capital funding for water sources and catchment conservation and awareness programs are further required to minimize the possible risks on water sources.

Author(s):  

Analysis of the 222Rn specific activity in water of three springs situated in Western outskirts of Yekaterinburg, out of the well that is the main drinking water source in the Palkinsky Torfyanning community, as well as the Yekaterinburg tap water has been carried out. Assessment of the radon content fluctuations over the period from January to November, 2013 in water of one of the sources under study has been done.


Author(s):  
Sabah Shareef Mohammed ◽  
Yadgar Hussien Hama-karim ◽  
Mohammed Ibrahim Mohialdeen Gubari

Water pollution in Iraq has been extended disaster edge; this pollution is caused by wastes and sewages into soil and rivers, pollutant water sources influence the outbreak and serious epidemic status among the population.. The aim of this study is to determine the bacteriological quality of drinking water sources and characteristics of water-borne diseases especially diarrheal cases in Darbandikhan city. 166 water samples, collected from the different sources and areas, were tested for the presences of coliform bacteria as an indicator for pathogen contamination. Most probable number index was used for coliform enumeration. 161 diarrheal cases were taken as a sample from the patients were admitted to the general hospital in Darbandikhan district.. The questionnaire form was planned to view characteristics of diarrheal cases and patients were interviewed directly, the data was analyzed by STATA software application. 46% of the diarrheal cases used tap water for drinking. On the other hand, the reminder (54%) used other sources for the same purpose. All the risk factor such as type of water source, sufficiency of the water, duration of water storage and chlorination were associated with diarrhea. Almost half of the cases were children and three quarters were single. The data was analyzed by STATA version 13.1.This study indicated that the majority of drinking water sources in Darbandikhan city are not suitable for drinking, although net pipe system supplied chlorine significantly it has been proven that the tap water from the homes is not suitable for consumption.


Author(s):  
С.В. Капранов

Целью работы явилось обоснование необходимости организации и проведения на конкурсной основе благоустройства нецентрализованных водоисточников с использованием разработанной методики комплексной гигиенической и экологической оценки состояния нецентрализованных источников питьевого водоснабжения в условиях чрезвычайной ситуации. В работе использованы результаты многолетнего санитарно-гигиенического обследования и лабораторных исследований воды коллективных источников нецентрализованного питьевого водоснабжения. Определены следующие основные показатели для комплексной гигиенической и экологической оценки состояния нецентрализованных водоисточников: степень соответствия водоисточника установленным санитарно-гигиеническим и санитарно-техническим нормам и требованиям; соблюдение зон санитарной охраны; санитарно-просветительное, эстетическое и художественное оформление водоисточников; уровень благоустройства территории, окружающей водоисточники; качество воды водоисточников по результатам лабораторных исследований за определенный период. По каждому из пяти показателей предусмотрена оценка по 12-балльной шкале с последующим суммированием баллов с целью получения итогового результата комплексной оценки. Учитывая успешное проведение конкурса по благоустройству нецентрализованных источников водоснабжения с использованием разработанной методики комплексной гигиенической и экологической оценки состояния нецентрализованных источников питьевого водоснабжения в районе с резким дефицитом питьевой водопроводной воды, рекомендовано опыт проведения данного мероприятия распространить на другие административные территории, находящиеся в подобной ситуации. The work objective was substantiating the need to arrange and conduct, on a competitive basis, the improvement of non-centralized water sources using the developed methodology for a comprehensive hygienic and environmental estimation of the state of non-centralized sources of drinking water supply in an emergency. The work uses the results of many years of sanitary and hygienic survey and laboratory studies of water from communal sources of non-centralized drinking water supply. The following main indicators have been determined for a comprehensive hygienic and environmental estimation of the state of non-centralized water sources: the degree of compliance of the water source with the established sanitary, hygienic and sanitary technical regulations and requirements; compliance with the sanitary protection zones; the sanitary and educational, aesthetic and artistic design of water sources; the level of improvement of the territory surrounding the water sources; the water quality of the water sources according to the results of laboratory tests for a certain period. Each of the five indicators was estimated according to the 12-point grading scale with the subsequent summation of points in order to provide for the final result of a comprehensive estimation. Considering the successful holding of a competitive tender for the improvement of non-centralized water supply sources using the developed methodology for a comprehensive hygienic and environmental estimation of the state of non-centralized drinking water supply sources in an area with severe shortages of drinking tap water, extending the experience of these measures to other administrative territories in a similar situation is recommended.


2018 ◽  
Vol 28 (3) ◽  
pp. 211-218
Author(s):  
Made Ayu Lely Suratri ◽  
Tince Arniati Jovina ◽  
Indirawati Tjahja Notohartojo

AbstractThe prevalence of dental caries in Indonesia is quite high, the results of the 2013 Basic Health Research (Riskesdas) population in Indonesian with 25,9% problems with their teeth and mouth. The average dental caries measured by the DMF-T index was 4.6, which means that the average Indonesian population has experienced tooth decay as much as 5 teeth per person. Dental caries can occur due to low dental and oral hygiene, and less exposure to fluorida. The incidence of dental caries is also related to the fluorine content contained in drinking water. The purpose of the study was to determine the relationship between dental caries and drinking water consumption in Indonesia. This study is a non-intervention research with cross-sectional design conducted by the National Institute of Health Research and Development, Ministry of Health of the Republic of Indonesia through Riskesdas 2013. The study population was all Indonesians aged ≥ 12 years in 33 provinces, 497 districts/cities. Collecting Dental data is done by conducting interviews and oral and dental examinations. The results showed that almost all types of drinking water sources can cause dental caries except the type of drinking water from refill water, with p> 0,05 (p = 0,178) and retail tap water, with p> 0,05 (p = 0.307) and also almost all types of water sources that are widely used for household needs can cause dental caries except the type of water source from dug well is protected, with p> 0,05 (p = 0,979), where OR: 1,026 (CI 95 %: 0.979-1.076). The Conclusio is the incidence of dental caries has to do with at the drinking water except the type of drinking water from refill water. AbstrakPrevalensi karies gigi di Indonesia cukup tinggi, hasil Riset Kesehatan Dasar (Riskesdas) tahun 2013 penduduk Indonesia yang bermasalah dengan gigi dan mulutnya sebesar 25,9%. Rata-rata karies gigi yang diukur dengan indeks DMF-T sebesar 4,6 yang berarti rata-rata penduduk Indonesia telah mengalami kerusakan gigi sebanyak 5 gigi per orang. Karies gigi dapat terjadinya karena rendahnya kebersihan gigi dan mulut, dan kurang terpaparnya dengan fluorida. Kejadian karies gigi berhubungan juga dengan kandungan fluor yang terdapat dalam air minum. Tujuan dari penelitian untuk mengetahui hubungan antara kejadian karies gigi dengan konsumsi air minum masyarakat di Indonesia. Metode penelitian ini merupakan penelitian non intervensi dengan desain penelitian potong lintang yang dilaksanakan oleh Badan Penelitian dan Pengembangan Kesehatan, Kementerian Kesehatan Republik Indonesia melalui Riskesdas Tahun 2013. Populasi penelitian adalah seluruh penduduk Indonesia yang berusia ≥ 12 tahun di 33 provinsi, 497 kabupaten/kota. Pengumpulan data gigi dilakukan dengan melakukan wawancara dan pemeriksaan gigi dan mulut. Hasil penelitian menunjukkan hampir semua jenis sumber air minum dapat menyebabkan terjadinya karies gigi kecuali jenis air minum dari air isi ulang, dengan nilai p>0,05 (p= 0,178) dan air ledeng eceran, dengan nilai p>0,05 (p= 0,307) dan juga hampir semua jenis sumber air yang banyak dipergunakan untuk kebutuhan rumah tangga dapat menyebabkan terjadinya karies gigi kecuali jenis sumber air dari sumur gali terlindungi, dengan nilai p>0,05 (p= 0,979), dimana OR: 1,026 (CI 95%: 0,979-1,076). Kesimpulan penelitian menunjukkan kejadian karies gigi ada hubungannya dengan konsumsi air minum kecuali jenis air minum dari air isi ulang.


Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2578
Author(s):  
Mingxia Du ◽  
Mingjun Zhang ◽  
Shengjie Wang ◽  
Hongfei Meng ◽  
Cunwei Che ◽  
...  

Based on 1260 tap water samples gathered monthly and 136 surface water samples collected seasonally in the eastern margin of the Qinghai–Tibet Plateau, the local tap water line, the basic spatiotemporal characteristics of tap water isotopes, and their indication for water source under different water supply modes were discussed, linking the local tap water supply and water source information. A new tap water isotopes data set based on dense sampling sites was established, which was reliable for the analysis of tap water isotope features, tap water supply management, and tap water sources. The main conclusions are: (1) The local tap water lines in Gannan and Longnan are δ2H = (7.06 ± 0.17) δ18O + (3.24 ± 1.75) (r2 = 0.81, p < 0.01) and δ2H = (5.66 ± 0.09) δ18O + (−8.12 ± 0.82) (r2 = 0.82, p < 0.01), respectively. (2) The annual mean δ2H and δ18O in tap water show an increasing trend from southwest to northeast. The seasonal differences of δ2H and δ18O in tap water in Gannan and Longnan are small. (3) The correlation of tap water isotopes with those in main source water is high, while that of isotopes in tap water with those in non-water source is low. Under the central water supply mode by local tap water company, tap water isotopes in Gannan where groundwater is the direct water source show weak connection with those in surface water and precipitation, and those in tap water in Longnan with surface water as main source water reveal good connection with isotopes in surface water. Under mixed water supply modes, tap water isotopes indicate that surface water is the main tap water source in Gannan and Longnan with multiple water sources.


Author(s):  
Alexey Shcherbakov ◽  
Valentin Zhezmer

Department of hydraulic engineering and hydraulics FGBNU «VNIIGiM them. A.N. Kostyakova «has a long history. For many years, the department’s staff has been such scientists and water engineers with extensive experience as M.A. Volynov, V.S. Verbitsky, S.S. Medvedev, N.V. Lebedev, B.C. Panfilov, T.G. Voynich-Syanozhentsky, V.A. Golubkova, G.V. Lyapin and others. The department solved a wide range of tasks, the main areas of research were the following: – theoretical and applied hydrodynamics and hydraulics, with reference to the open channel flows that affect the state and level of safety of the hydraulic structures; – integrated use and protection of water bodies – water sources and water sources of water resources used in land reclamation; – development of measures and technical solutions for the protection of objects from the negative effects of water; – theoretical substantiation of works to improve the safety level of the GTS (declaration); – development and implementation of digitalization methods for solving design, construction, operation and control of landreclamation facilities. Currently, promising areas of research is the development of a decision-making algorithm in the designation of measures to rationalize the provision of resources to water amelioration. The algorithm is developed on the basis of a detailed study, systematization and processing of data both on safety and on the efficiency of systems and structures, ensuring the delivery of irrigation water of the required quality and in sufficient quantity from a water source to the field.


Author(s):  
Vu Kha Thap

Entering the XXI century and especially in the period of the industrial revolution has entered the era of IT with the knowledge economy in the trend of globalization. The 4.0 mankind development of ICT, especially the Internet has had a strong impact and make changes to all activities profound social life of every country in the world. Through surveys in six high School, interviewed 85 managers and teachers on the status of the management of information technology application in teaching, author of the article used the SWOT method to distribute surface strength, weaknesses, opportunities and challenges from which to export 7 management measures consistent with reality. 7 measures have been conducting trials and the results showed that 07 measures of necessary and feasible.


Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2791
Author(s):  
Pengyan Su ◽  
Mingjun Zhang ◽  
Deye Qu ◽  
Jiaxin Wang ◽  
Yu Zhang ◽  
...  

As a species for ecological restoration in northern China, Tamarix ramosissima plays an important role in river protection, flood control, regional climate regulation, and landscape construction with vegetation. Two sampling sites were selected in the hillside and floodplain habitats along the Lanzhou City, and the xylems of T. ramosissima and potential water sources were collected, respectively. The Bayesian mixture model (MixSIAR) and soil water excess (SW-excess) were applied to analyze the relationship on different water pools and the utilization ratios of T. ramosissima to potential water sources in two habitats. The results showed that the slope and intercept of local meteoric water line (LMWL) in two habitats were smaller compared with the global meteoric water line (GMWL), which indicated the existence of drier climate and strong evaporation in the study area, especially in the hillside habitat. Except for the three months in hillside, the SW-excess of T. ramosissima were negative, which indicated that xylems of T. ramosissima are more depleted in δ2H than the soil water line. In growing seasons, the main water source in hillside habitat was deep soil water (80~150 cm) and the utilization ratio was 63 ± 17% for T. ramosissima, while the main water source in floodplain habitat was shallow soil water (0~30 cm), with a utilization ratio of 42.6 ± 19.2%, and the water sources were different in diverse months. T. ramosissima has a certain adaptation mechanism and water-use strategies in two habitats, and also an altered water uptake pattern in acquiring the more stable water. This study will provide a theoretical basis for plant water management in ecological environment protection in the Loess Plateau.


2014 ◽  
Vol 12 (3) ◽  
pp. 484-491 ◽  
Author(s):  
Andrea Crampton ◽  
Angela T. Ragusa

Agricultural runoff into surface water is a problem in Australia, as it is in arguably all agriculturally active countries. While farm practices and resource management measures are employed to reduce downstream effects, they are often either technically insufficient or practically unsustainable. Therefore, consumers may still be exposed to agrichemicals whenever they turn on the tap. For rural residents surrounded by agriculture, the link between agriculture and water quality is easy to make and thus informed decisions about water consumption are possible. Urban residents, however, are removed from agricultural activity and indeed drinking water sources. Urban and rural residents were interviewed to identify perceptions of agriculture's impact on drinking water. Rural residents thought agriculture could impact their water quality and, in many cases, actively avoided it, often preferring tank to surface water sources. Urban residents generally did not perceive agriculture to pose health risks to their drinking water. Although there are more agricultural contaminants recognised in the latest Australian Drinking Water Guidelines than previously, we argue this is insufficient to enhance consumer protection. Health authorities may better serve the public by improving their proactivity and providing communities and water utilities with the capacity to effectively monitor and address agricultural runoff.


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