Download or read book Extent of Arsenic Contamination and Its Impact on the Food Chain and Human Health in the Eastern Ganges Basin written by N. Rajmohan and published by IWMI. This book was released on 2014-01-01 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exposure to arsenic and the use of arsenic-contaminated groundwater in agriculture causes serious health issues. Complete or partial contamination of groundwater is reported worldwide, especially in the Eastern Gangetic Basin (EGB). This study aims to create an overall assessment of arsenic contamination in the EGB based on existing literature, demarcate the extent of the affected area, highlight the impacts on the food chain and human health, and hopes the research will help in the better planning and management of groundwater. Although several studies have evaluated arsenic contamination of groundwater in the EGB, (a) there is no proper long-term monitoring being done in affected areas; (b) there is a debate to identify the exact source and transport processes of arsenic occurrence in this region; (c) there is no comprehensive method to estimate the level of arsenic contamination in soil, water and the food chain; and (d) Arsenic contamination in Bihar and Nepal is not evaluated systematically, especially arsenic accumulation in the food chain and human health issues. Data scarcity and accessibility are the major challenges in this region. Thus, this review recommends systematic monitoring and analysis of arsenic contamination in groundwater, soils and food across the EGB.
Download or read book Managing Arsenic in the Environment written by Ravi Naidu and published by CSIRO PUBLISHING. This book was released on 2006-02-07 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arsenic is one of the most toxic and carcinogenic elements in the environment. This book brings together the current knowledge on arsenic contamination worldwide, reviewing the field, highlighting common themes and pointing to key areas needing future research. Contributions discuss methods for accurate identification and quantification of individual arsenic species in a range of environmental and biological matrices and give an overview of the environmental chemistry of arsenic. Next, chapters deal with the dynamics of arsenic in groundwater and aspects of arsenic in soils and plants, including plant uptake studies, effects on crop quality and yield, and the corresponding food chain and human health issues associated with these exposure pathways. These concerns are coupled with the challenge to develop efficient, cost effective risk management and remediation strategies: recent technological advances are described and assessed, including the use of adsorbants, photo-oxidation, bioremediation and electrokinetic remediation. The book concludes with eleven detailed regional perspectives of the extent and severity of arsenic contamination from around the world. It will be invaluable for arsenic researchers as well as environmental scientists and environmental chemists, toxicologists, medical scientists, and statutory authorities seeking an in-depth view of the issues surrounding this toxin.
Download or read book Reviving the Ganges water machine potential and challenges to meet increasing water demand in the Ganges River Basin written by Amarasinghe, Upali A. and published by IWMI. This book was released on 2016-12-05 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the Ganges River Basin (GRB) has abundant water resources, the seasonal monsoon causes a mismatch in water supply and demand, which creates severe water-related challenges for the people living in the basin, the rapidly growing economy and the environment. Addressing these increasing challenges will depend on how people manage the basin’s groundwater resources, on which the reliance will increase further due to limited prospects for additional surface storage development. This report assesses the potential of the Ganges Water Machine (GWM), a concept proposed 40 years ago, to meet the increasing water demand through groundwater, and mitigate the impacts of floods and droughts. The GWM provides additional subsurface storage (SSS) through the accelerated use of groundwater prior to the onset of the monsoon season, and subsequent recharging of this SSS through monsoon surface runoff. It was identified that there is potential to enhance SSS through managed aquifer recharge during the monsoon season, and to use solar energy for groundwater pumping, which is financially more viable than using diesel as practiced in many areas at present. The report further explores the limitations associated with water quality issues for pumping and recharge in the GRB, and discusses other related challenges, including availability of land for recharge structures and people’s willingness to increase the cropping intensity beyond the present level.
Download or read book The Ganges River Basin written by Luna Bharati and published by Routledge. This book was released on 2016-08-25 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ganges is one of the most complex yet fascinating river systems in the world. The basin is characterized by a high degree of heterogeneity from climatic, hydrological, geomorphological, cultural, environmental and socio-economic perspectives. More than 500 million people are directly or indirectly dependent upon the Ganges River Basin, which spans China, Nepal, India and Bangladesh. While there are many books covering one aspect of the Ganges, ranging from hydrology to cultural significance, this book is unique in presenting a comprehensive inter-disciplinary overview of the key issues and challenges facing the region. Contributors from the three main riparian nations assess the status and trends of water resources, including the Himalayas, groundwater, pollution, floods, drought and climate change. They describe livelihood systems in the basin, and the social, economic, geopolitical and institutional constraints, including transboundary disputes, to achieving productive, sustainable and equitable water access. Management of the main water-use sectors and their inter-linkages are reviewed, as well as the sustainability and trade-offs in conservation of natural systems and resource development such as for hydropower or agriculture.
Download or read book Arsenic Contamination in the Environment written by Dharmendra Kumar Gupta and published by Springer. This book was released on 2017-05-23 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview to researchers, graduate, and undergraduate students, as well as academicians who are interested in arsenic. It covers human health risks and established cases of human ailments and sheds light on prospective control measures, both biological and physico-chemical. Arsenic (As) is a widely distributed element in the environment having no known useful physiological function in plants or animals. Historically, this metalloid has been known to be used widely as a poison. Effects of arsenic have come to light in the past few decades due to its increasing contamination in several parts of world, with the worst situation being in Bangladesh and West Bengal, India. The worrying issue is the ingestion of arsenic through water and food and associated health risks due to its carcinogenic and neurotoxic nature. The impact of the problem is widespread, and it has led to extensive research on finding both the causes and solutions. These attempts have allowed us to understand the various probable causes of arsenic contamination in the environment, and at the same time, have provided a number of possible solutions. It is reported that more than 200 mineral species contain As. Generally, As binds with iron and sulfur to form arsenopyrite. According to one estimate from the World Health Organization (WHO), contextual levels of As in soil ranges from 1 to 40 mg kg-1. Arsenic toxicity is related to its oxidation state which is present in the medium. As is a protoplastic toxin, due to its consequence on sulphydryl group it interferes in cell enzymes, cell respiration and in mitosis. Exposure of As may occur to humans via several industries, such as refining or smelting of metal ores, microelectronics, wood preservation, battery manufacturing, and also to those who work in power plants that burn arsenic-rich coal.
Download or read book Arsenic Water Resources Contamination written by Ali Fares and published by Springer. This book was released on 2019-07-02 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume brings together a diverse group of environmental science, sustainability and health researchers to address the challenges posed by global mass poisoning caused by arsenic water contamination. The book sheds light on this global environmental issue, and proposes solutions to aquatic contamination through a multi-disciplinary lens and case studies from Bangladesh and India. The book may serve as a reference to environment and sustainability researchers, students and policy makers. Part one of the book describes the issue of arsenic contamination in ground water and river basins, including its source and distribution in specific locations in India. Part two explains the routes of exposure to environmental arsenic, its transport in aquatic ecosystems, and the health risks linked to arsenic exposure in food and the environment. Part three addresses sustainable arsenic contamination mitigation strategies and policies, the socioeconomic, demographic, cultural and psychological aspects of arsenic contamination, and the potential applications of GIS and remote sensing in providing solutions. Part four concludes by discussing the role of local and regional institutions in water resources management for a variety of issues including but not limited to arsenic contamination, and presents a case study in the Indus river basin in Pakistan to propose future contamination mitigation strategies.
Download or read book The Taiwan Crisis a showcase of the global arsenic problem written by Jiin-Shuh Jean and published by CRC Press. This book was released on 2011-03-03 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1950s, the residents of the southwestern coastal areas of Taiwan suffered greatly from Blackfoot disease (BFD) due to the consumption of arsenic-contaminated groundwater. Groundwater with high levels of arsenic in southwestern and northeastern Taiwan received much attention. After arsenic-safe tap water was utilized for drinking instead of groundwater in the 1970s, BFD cases decreased greatly. After 1990, no new BFD cases were reported, and as a consequence, BFD problems disregarded. However, arsenic is still present in the groundwater. This book will improve the knowledge and understanding of the occurrence and genesis of arsenic-rich groundwaters in Taiwan. It deals with constraints on the mobility of arsenic in groundwater, its uptake from soil and water by plants, arsenic-propagation through the food chain, human health impacts, and arsenic-removal technologies. Taiwan case experiences are described in this book and can be applied worldwide. This book is a state-of-the-art overview of research on arsenic in Taiwan and is designed to: create interest in regions within Taiwan that are affected by the presence of arseniferous aquifers; draw attention from the international scientific community; increase awareness among researchers, administrators, policy makers, and company executives; improve the international cooperation on arsenic problems worldwide.
Download or read book Arsenic Pollution written by Peter Ravenscroft and published by John Wiley & Sons. This book was released on 2011-07-26 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arsenic Pollution summarizes the most current research on the distribution and causes of arsenic pollution, its impact on health and agriculture, and solutions by way of water supply, treatment, and water resource management. Provides the first global and interdisciplinary account of arsenic pollution occurrences Integrates geochemistry, hydrology, agriculture, and water supply and treatment for the first time Options are highlighted for developing alternative water sources and methods for arsenic testing and removal Appeals to specialists in one discipline seeking an overview of the work being done in other disciplines
Download or read book Arsenic Contamination in Asia written by Hiroshi Yamauchi and published by Springer. This book was released on 2018-11-11 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides valuable new insights into preventive measures for chronic arsenic poisoning, exploring the various causes, metabolism and toxicity, preventive drugs, functional foods and various methods for removing arsenic from contaminated water. The mechanisms of chronic arsenic poisoning vary between countries and regions, and the pathological difference, though reported on, is still only poorly understood. As large-scale chronic arsenic poisoning is concentrated in Asia, the contributions in this book were written by pioneers from Asia. Further, the management of removed arsenic has not yet become standardized, and this volume will serve as a vital source of new ideas by highlighting significant detoxification methods aimed at the disposal of arsenic. Arsenic Contamination in Asia represents a valuable sourcebook for scientists working in the fields of environmental health, occupational health, environmental science, fisheries science, agriculture, pharmacy, analytical chemistry, and clinical medicine. Also, beginning researchers, seasoned experts, and students who are seeking comprehensive information on the natural sciences including medicine will find this work thought-provoking, instructive and informative.
Download or read book Arsenic in Groundwater written by M. Manzurul Hassan and published by CRC Press. This book was released on 2018-03-08 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arsenic-contaminated groundwater is considered one of the world’s largest environmental health crises, as more than 300 million people in more than one-third of countries worldwide are at risk of groundwater arsenic poisoning. This book addresses how arsenic in groundwater impacts human health by using the frameworks of natural sciences, social sciences, and health sciences in the context set by environmental and legal considerations. Arsenic in Groundwater: Poisoning and Risk Assessment examines the spatial, quantitative, and qualitative aspects on arsenic poisoning; for instance, using geographical information systems (GIS) to investigate the spatial discontinuity of arsenic-laced water in spatial and temporal dimensions to uncover patterns of variations over scales from meters to kilometers. Spatial risk mapping provides insight for academics, researchers, policy makers, and politicians on possible long-term strategies for arsenic mitigation. Qualitative methodological approaches uncover the hidden issues of arsenic poisoning on human health and the related social implications. The book also examines legal aspects, such as the right to safe drinking water, as well as an in-depth look at how community participation can shape public policy. Features: Describes arsenic poisoning from both the scientific and social science perspectives Includes technical insights drawn from GIS-based modeling for spatial arsenic discontinuity and spatial health risks of arsenic poisoning Provides a state-of-the-art review of the human health literature and cutting-edge scientific evidence for arsenic-related health and social implications Examines the environmental justice and legal issues of drinking water and its quality Presents environmental policy and public mitigation strategies with Public Participation GIS (PPGIS) related to arsenic contamination More than 2,000 references serve as valuable resources for various aspects of arsenic poisoning
Download or read book Arsenic Exposure and Health Effects V written by W.R. Chappell and published by Elsevier. This book was released on 2003-12-19 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authoritative articles in this book represent the state-of-the-art in arsenic research. Arsenic experts from around the world - participants in the Fifth International Conference on Arsenic Exposure and Health Effects organized by the Society for Environmental Geochemistry and Health in 2002 - present their critical findings. The authors share their latest arsenic research findings in Occurrence, Epidemiology, Biomarkers and Animal Models, Mode of Action, Mode of Action, Risk Estimation, Intervention and Medical Treatment, and Water Treatment and Remediation. As in past conferences, the first report of elevated arsenic exposures in a new country was given. The Conference introduced the finding of arsenic contamination in Nepal and updates of the arsenic problems in Bangladesh, India, Vietnam are included. A vital contribution to arsenic study and policy making, this volume examines the global impact of the toxin and discusses arsenic in the environment, mechanisms of arsenic metabolism and carcinogenesis, water treatment technology, and medical care. Arsenic Exposure and Health Effects V offers informed, challenging insights into a highly important and controversial topic.
Download or read book Arsenic in Drinking Water and Food written by Sudhakar Srivastava and published by Springer. This book was released on 2019-08-08 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arsenic contamination poses a major environmental problem, especially in Southeast Asian countries like Bangladesh and India. Threatening the health of millions of people due to arsenic’s toxicity and carcinogenicity, the major routes of arsenic exposure for humans are either through drinking water or crops. Rice is the crop most affected by arsenic owing to its cultivation in major arsenic contaminated areas, biogeochemical factors in the soil during rice growth, and specific features of rice that enable it take up more arsenic than other crop plants. This book addresses the problem of arsenic by pursuing a holistic approach. It presents the status quo in different parts of the world (North and South America, Europe, Asia, etc.) and provides essential information on food-related arsenic exposure risks for humans, and possible preventive and curative measures for tackling arsenic poisoning. It covers the arsenic contamination status of rice, rice-based products, other vegetables, fishes, mushrooms, and other foods, with a special focus on rice-arsenic interactions. The mechanisms of arsenic uptake, translocation and distribution in plants and grains are also explained. In closing, the book reviews a variety of prospective agronomic and biotechnological solutions to the problem of arsenic accumulation in rice grains. The book is intended for a broad audience including researchers, scientists, and readers with diverse backgrounds including agriculture, environmental science, food science, environmental management, and human health. It can also be used as an important reference guide for undergraduate and graduate students, university faculties, and environmentalists.
Download or read book Arsenic in Soil and Groundwater Environment written by Prosun Bhattacharya and published by Elsevier. This book was released on 2007-06-29 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the recent developments in the field of arsenic in soil and groundwater. Arranged into nine sections, the text emphasizes the global occurrences of arsenic in the environment, particularly on its source, pathways, behavior, and effects it has on soils, plants, water, animals, and humans. It also covers the diverse issues of arsenic in the mining environment, arsenic emanating from hydrothermal springs, and the geochemical modeling of arsenic adsorption to oxide surfaces. Finally, the text includes different cost effective removal mechanisms of arsenic from drinking water using natural red earth, solar oxidation, and arsenic oxidation by ferrrate. Written in simple English, and few technical terms, the book is designed to create interest within the countries with occurrences of arsenic in drinking water with · an update the current status of knowledge on the dynamics of natural arsenic from the aquifers through groundwater to food chain and efficient techniques for arsenic removal.· serve as a standard text book for graduate, postgraduate students and researchers in the field of Environmental Sciences and Hydrogeochemistry as well as researchers, environmental scientists and chemists, toxicologists, medical scientists and even for general public seeking an in-depth view of arsenic which had been classed as a carcinogen. · bring awareness, among administrators, policy makers and company executives, on the problem and to improve the international cooperation
Download or read book Arsenic in Ground Water written by Alan H. Welch and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in arsenic in ground water has greatly increased in the past decade because of the increased awareness of human health effects and the costs of avoidance or treatment of ground water supplies used for consumption. The goal of this book is to provide a description of the basic processes that affect arsenic occurrence and transport by providing sufficient background information on arsenic geochemistry and descriptions of hi- arsenic ground water, both affected and unaffected by human activity. An understanding of thermodynamics, adsorption, and the speciation of arsenic in solid phases, which are described in first three chapters, is needed to predict the fate of arsenic in ground water systems. Large-scale and deep movement of ground water can and has redistributed arsenic in the near surface environment, as described in the next two chapters. These large-scale systems can affect large volumes of both ground water and surface water, such as in the Yellowstone system, and can produce mineralised zones that subsequently release arsenic to ground water supplies. Regional identification of high-arsenic ground water and its consumption as described in the next three chapters clearly demonstrates a need for increased wat- quality monitoring, particularly in south and southeast Asia. Chapters 9-11 provide examples of high arsenic ground water associated with sulfide mineral oxidation and alkaline conditions. Finally, smaller scale studies of the effects of human activities that have produced high-arsenic ground water and methods for attenuation of ground water are presented.
Download or read book Emerging Issues in the Water Environment during Anthropocene written by Manish Kumar and published by Springer Nature. This book was released on 2019-08-28 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book intends to bring together and integrate the subject matter of water quality. The book covers aspects of water related to climate change, emerging aspects of engineering sciences, bio-geochemical sciences, hydro geochemistry, river management and morphology, social sciences, and public policy. The book covers the role of disruptive innovations in water management, policy formation and impact mitigation strategies. The book includes lab results as well as case studies. It provides recommendations and solutions for policy making and sustainable water management. The chapters in this book deal cohesively with many aspects of the water environment during the Anthropocene era. The contents cover myriad issues, such as land degradation, water scarcity, urbanization, climate change, and disruptive innovation. The book also discusses issues highly pertinent to society and sustainability, such as the prevalence of enteric viruses and pharmaceutical residues as a possible anthropogenic markers in the aquatic environment. The book will prove useful for students, professionals, and researchers working on various aspects of water related concerns.
Download or read book The Human Right to Water written by Nandita Singh and published by Springer. This book was released on 2016-10-06 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discourse on the human right to water presents deliberations on the concept, content and rationale for the right, with little attention to the practical question of translating the right into reality. This book aims to fill this void by focusing on ‘realization’ of the right by its holders, examining how effective the mechanisms are for ‘implementing’ the right in enabling its universal realization. In a quest to answer this question, the book draws a conceptual differentiation between ‘implementation’ and ‘realization’ of the right, arguing that unlike implementation - which is an objective process of creation and implementation of measures such as legal frameworks, institutional structures or policy and action guidelines, realization of the right is a subjective process that extends much beyond. It takes shape within specific contextual settings which may include varied situations, yet remains neglected in the related academic and action forums. This book attempts to address this void by discussing some of the most significant contexts and the underlying problems and concerns that strongly influence realization of the human right to water. It contends that if the right is to be truly realized, these different contexts - which can be further classified as 'objective' and 'subjective' - must be understood, analysed and appropriately addressed before framing and implementing relevant action. The book further situates the human right to water discourse in a broader interdisciplinary perspective, expanding its scope beyond the narrower legal dimensions, linking it to the wider field of water resources management/governance. Through the novel ideas it proposes, the book makes an innovative and unique contribution in the field of human right to water which is of great scientific value.
Download or read book Water Resources Assessment of the Volta River Basin written by Marloes Mul, Emmanuel Obuobie and published by International Water Management Institute (IWMI). This book was released on 2015-02-01 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: