Extent of Arsenic Contamination and Its Impact on the Food Chain and Human Health in the Eastern Ganges Basin
Extent of Arsenic Contamination and Its Impact on the Food Chain and Human Health in the Eastern Ganges Basin

Author: N. Rajmohan

Publisher: IWMI

Published: 2014-01-01

Total Pages: 52

ISBN-13: 9290908009

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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.

Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin
Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin

Author: Amarasinghe, Upali A.

Publisher: IWMI

Published: 2016-12-05

Total Pages: 46

ISBN-13: 9290908424

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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.

The Ganges River Basin
The Ganges River Basin

Author: Luna Bharati

Publisher: Routledge

Published: 2016-08-25

Total Pages: 452

ISBN-13: 1317479475

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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.

Arsenic in Drinking Water and Food
Arsenic in Drinking Water and Food

Author: Sudhakar Srivastava

Publisher: Springer

Published: 2019-08-08

Total Pages: 466

ISBN-13: 9811385874

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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.

Emerging Issues in the Water Environment during Anthropocene
Emerging Issues in the Water Environment during Anthropocene

Author: Manish Kumar

Publisher: Springer Nature

Published: 2019-08-28

Total Pages: 374

ISBN-13: 9813297719

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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.

The Human Right to Water
The Human Right to Water

Author: Nandita Singh

Publisher: Springer

Published: 2016-10-06

Total Pages: 251

ISBN-13: 3319402862

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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.

Baseline review and ecosystem services assessment of the Tana River Basin, Kenya
Baseline review and ecosystem services assessment of the Tana River Basin, Kenya

Author: Baker, Tracy

Publisher: International Water Management Institute (IWMI)

Published: 2015-06-01

Total Pages: 112

ISBN-13: 9290908300

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The ‘WISE-UP to climate’ project aims to demonstrate the value of natural infrastructure as a ‘nature-based solution’ for climate change adaptation and sustainable development. Within the Tana River Basin, both natural and built infrastructure provide livelihood benefits for people. Understanding the interrelationships between the two types of infrastructure is a prerequisite for sustainable water resources development and management. This is particularly true as pressures on water resources intensify and the impacts of climate change increase. This report provides an overview of the biophysical characteristics, ecosystem services and links to livelihoods within the basin.

Characteristics of Urban and Peri-urban Agriculture in West Africa
Characteristics of Urban and Peri-urban Agriculture in West Africa

Author: Imogen Bellwood-Howard

Publisher: International Water Management Institute (IWMI)

Published: 2015-10-06

Total Pages: 42

ISBN-13: 9290908211

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The report summarizes key results from surveys carried out on urban and peri-urban agriculture (UPA) in Tamale (Ghana) and Ouagadougou (Burkina Faso) in 2013. The aim was to provide a broad overview of the state of UPA in the study cities and a basis for future research endeavors. The randomized sampling approach used aerial photography to identify 10 sites in different categories of farm in each city. Farmers provided information on their cropping and livestock-rearing activities. There were similarities between the cities, but the differences in the expression of UPA in Tamale and Ouagadougou were more intriguing, as in farm sizes, crops grown and livestock ownership. Farmers were particularly concerned about diminishing access to land in Tamale, where sales by chiefs to private investors were accelerating. In Ouagadougou, formal reallocation of land to homeowners by the state had similarly decreased available farmland. Water availability was a universal concern, and the quality of water used for irrigation was potentially more questionable in Ouagadougou than in Tamale. The results point to the need for further work on uncontaminated, perennial water sources and soil fertility management, alongside focuses on commercialization of animal production, and the legal, political and institutional context of UPA in different West African cities.