Bücher von Sunitha Vangala

Fluorid im Trinkwasser ist inzwischen zu einem der wichtigsten geoökologischen und toxikologischen Themen in der Welt geworden. In den letzten drei Jahrzehnten wurde weltweit auf hohe Fluoridkonzentrationen in Trinkwasserquellen und die daraus resultierende Krankheit "Fluorose" aufmerksam gemacht. Andhra Pradesh, Rajasthan, Uttar Pradesh, Gujrat und Tamil Nadu sind die Bundesstaaten mit der höchsten Rate an endemischer Fluorose. In Andhra Pradesh sind mehrere tausend Menschen in 18 Bezirken von Fluorose betroffen. Anantapur ist einer der betroffenen Bezirke, in denen höhere Konzentrationen von Fluorid im Trinkwasser der Bevölkerung festgestellt wurden. In Anbetracht seiner physiologischen Bedeutung zielt die vorliegende Studie darauf ab, die Verteilung und Hydrogeochemie von Fluorid im Grundwasser von Urvakonda, Mandal des Distrikts Anantapur in Andhra Pradesh zu untersuchen.

La presenza di fluoruro nell'acqua potabile è diventata una delle questioni geoambientali e tossicologiche più importanti al mondo. Negli ultimi tre decenni, l'elevata concentrazione di fluoruro nelle fonti di acqua potabile e la conseguente malattia "fluorosi" sono state evidenziate in tutto il mondo. Andhra Pradesh, Rajasthan, Uttar Pradesh, Gujrat e Tamil Nadu sono gli Stati con il più alto tasso di fluorosi endemica. In Andhra Pradesh, diverse migliaia di persone in ben 18 distretti soffrono di fluorosi. Anantapur è uno dei distretti colpiti, dove sono state riscontrate concentrazioni più elevate di fluoruro nell'acqua potabile utilizzata dalla popolazione. In considerazione della sua importanza fisiologica, il presente studio si propone di studiare la distribuzione e l'idrogeochimica del fluoro nelle acque sotterranee di Urvakonda, mandali del distretto di Anantapur, Andhra Pradesh.

El flúor en el agua potable se ha convertido en uno de los problemas geoambientales y toxicológicos más importantes del mundo. Durante las últimas tres décadas, las altas concentraciones de flúor en las fuentes de agua potable y la enfermedad resultante "Fluorosis" se está poniendo de relieve en todo el mundo. Andhra Pradesh, Rajastán, Uttar Pradesh, Gujrat y Tamil Nadu son los estados con mayor índice de fluorosis endémica. En Andhra Pradesh, varios miles de personas de 18 distritos padecen fluorosis. Anantapur es uno de los distritos afectados, donde se han detectado mayores concentraciones de fluoruro en el agua potable utilizada por la población. En vista de su importancia fisiológica, el presente estudio tiene como objetivo estudiar la distribución y la hidrogeoquímica del flúor en las aguas subterráneas de Urvakonda, mandals del distrito de Anantapur de Andhra Pradesh.

Soderzhanie ftora w pit'ewoj wode w nastoqschee wremq stalo odnoj iz naibolee wazhnyh geoäkologicheskih i toxikologicheskih problem w mire. V poslednie tri desqtiletiq wo wsem mire obraschaüt wnimanie na wysokie koncentracii ftora w istochnikah pit'ewoj wody i swqzannoe s ätim zabolewanie "flüoroz". Shtaty Andhra-Pradesh, Radzhastan, Uttar-Pradesh, Gudzhrat i Tamilnad qwlqütsq shtatami s samym wysokim rejtingom ändemicheskogo flüoroza. V shtate Andhra-Pradesh flüorozom stradaüt neskol'ko tysqch chelowek w 18 okrugah. Anantapur - odin iz neskol'kih postradawshih rajonow, gde w pit'ewoj wode obnaruzheny powyshennye koncentracii ftora. Uchitywaq ego fiziologicheskuü znachimost', cel'ü nastoqschego issledowaniq qwlqetsq izuchenie raspredeleniq i gidrogeohimii ftora w podzemnyh wodah Urwakondy, mandaly rajona Anantapur shtata Andhra-Pradesh.

La présence de fluor dans l'eau potable est devenue l'une des questions géo-environnementales et toxicologiques les plus importantes au monde. Au cours des trois dernières décennies, les concentrations élevées de fluorure dans les sources d'eau potable et la maladie qui en résulte, la "fluorose", ont été mises en évidence dans le monde entier. L'Andhra Pradesh, le Rajasthan, l'Uttar Pradesh, le Gujrat et le Tamil Nadu sont les États où la fluorose endémique est la plus répandue. Dans l'Andhra Pradesh, plusieurs milliers de personnes dans 18 districts souffrent de fluorose. Anantapur est l'un des districts touchés où des concentrations élevées de fluorure ont été trouvées dans l'eau potable utilisée par la population. Compte tenu de son importance physiologique, la présente étude vise à étudier la distribution et l'hydrogéochimie du fluorure dans les eaux souterraines d'Urvakonda, des mandales du district d'Anantapur de l'Andhra Pradesh.

O flúor na água potável tornou-se atualmente uma das questões geoambientais e toxicológicas mais importantes do mundo. Durante as últimas três décadas, as elevadas concentrações de fluoreto nas fontes de água potável e a doença resultante, a "fluorose", estão a ser destacadas em todo o mundo. Andhra Pradesh, Rajasthan, Uttar Pradesh, Gujrat e Tamil Nadu são os estados com maior índice de fluorose endémica. Em Andhra Pradesh, vários milhares de pessoas em 18 distritos estão a sofrer de fluorose. Anantapur é um dos vários distritos afectados onde foram encontradas concentrações mais elevadas de fluoreto na água potável utilizada pela população. Tendo em conta a sua importância fisiológica, o presente estudo tem por objetivo estudar a distribuição e a hidrogeoquímica do flúor nas águas subterrâneas de Urvakonda, mandals do distrito de Anantapur, em Andhra Pradesh.

Groundwater forms the major source of drinking water in the rural areas of most of the developing nations in the world. Presence of high concentration of nitrate in groundwater is a major problem in many countries as it causes health related problems. In an agro-economy based rural areas, the nitrate contamination is rampant and much attention has not been drawn towards this anthropogenic pollution. The present study emphasizes the objective of determining the causes for higher nitrate concentration in groundwater and health implications in parts of Anantapur District, Andhra Pradesh, India.

Fluoride in drinking water has now become one of the most important geo-environmental and toxicological issues in the world. During the last three decades, high fluoride concentrations in drinking water sources and the resultant disease ¿Fluorosis¿ is being highlighted throughout the world. Andhra Pradesh, Rajasthan, Uttar Pradesh, Gujrat and Tamil Nadu being the states with the highest rating of endemic fluorosis. In Andhra Pradesh, several thousands of people in as many as 18 districts are suffering from fluorosis. Anantapur is one of the several affected districts where higher concentrations of fluoride have been found in the drinking water used by the people. In view of its physiological significance, the present study is aimed at to study the distribution and hydrogeochemistry of fluoride in groundwater of Urvakonda, mandals of Anantapur district of Andhra Pradesh.

Sustainable water resources development and management necessarily depends on proper planning, implementation, operation and maintenance. The interpretation of Remote Sensing data & GIS in conjunction with conventional data and sufficient ground truth information makes it possible to identify and outline various ground features such as geological structures, geomorphic features and their hydrologic characters that may serve as direct or indirect indicators of the presence of ground and surface water. An integrated survey based on satellite image interpretation corroborated with limited field checks were carried out with a view to delineate the ground water potential of, Anantapur, Y.S.R, Districts Andhra Pradesh are discussed in this book.

Groundwater constitutes an important source of water for drinking, agriculture and industrial production. The use of groundwater has increased significantly in the last decades due to its widespread occurrence and overall good quality. Water quality index exhibits the overall water quality at a specific location and specific time based on several water quality parameters. The objective of an index is to turn complex quality data in to information that is understandable and usable by the public. The water quality of the Kadapa town varied from excellent to good. The high value of WQI at these stations has been found to be mainly from values of fluoride, Electrical conductivity. In some of the collected samples, the concentrations of these parameters exceed the permissible limits of WHO and ISI standards. After evaluating the data of this study it is concluded that there is an instant need to take ameliorative steps in Kadapa, Badvel, Kalasapadu, Porumamilla mandals, Vemula, Vempalli of Y.S.R District to prevent the population from groundwater pollution. Measures on a groundwater-quality monitoring program are suggested for the sustainable development of this area.