Human Exposure To Arsenic And Other Potentially Toxic Metals In Some Waters Of Biu Volcanic Province North Eastern Nigeria The Effect Of Leaching From Rocks Into Surrounding Waters
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| Author | : Admu Usman Mohammed |
| Publisher | : Anchor Academic Publishing (aap_verlag) |
| Total Pages | : 114 |
| Release | : 2014-02-01 |
| Genre | : Science |
| ISBN | : 3954896761 |
The Biu Volcanic Province is one of the largest Volcanic Provinces in Nigeria covering an area of 5000 km2 with a thickness of 250m. Geochemical analysis of the volcanic soil revealed the complete leaching of the major elements (CaO, K2O, MgO, MnO, and TiO2) from the surface soil probably into water sources. This may explain the extremely high Ca and K levels especially in the stream water where they display values of 348mg/l and 36 mg/l as against 200mg/l to 12 mg/l respectively of WHO admissible limits for drinking water. The accumulation of transition metals in the soil (Co 84-111ppm; Cr: 230-441ppm); Ni: 169-237ppm) is geogenic derived from the weathering of the host basaltic rock. Cr, Ni, and Cu do not easily form soluble ions in solution explaining why they display lower levels below their respective WHO admissible limits for drinking water. The absence in the soil profile and the extremely higher values of potentially harmful elements (PHEs) (As, Se, Sb, and Pb) in the spring and stream water as opposed to the lower values in the wells and borehole water suggest their extreme solubility, direct leaching and transportation of these elements from the surrounding rocks into the surface water, which may be source of exposure to the inhabitants.
| Author | : Susan Murcott |
| Publisher | : IWA Publishing |
| Total Pages | : 341 |
| Release | : 2012-09-30 |
| Genre | : Science |
| ISBN | : 1780400381 |
Arsenic Contamination in the World: an International Sourcebook provides a global compendium of cited arsenic occurrences in the world as they affect public health. This book details arsenic contamination by source, region and arsenic-affected country. Arsenic is identified in 105 countries and territories, representing a larger database than any previous published work. Sources of arsenic contamination are categorized as Anthropogenic, Geogenic, Volcanogenic, Coal, Mining and Petroleum-related. National, regional and international maps locate the affected areas and populations. A synthesis of critical country information includes an estimate of the exposed population of 226 million people worldwide. This reference work is an indispensable tool for medical doctors, public health workers, scientists, water experts, governments, industries, non-profit organizations and communities in identifying site-specific arsenic contamination. An extensive bibliography of peer-reviewed literature gives the reader important arsenic contamination locations as the first step towards remediation. This Sourcebook is updatable via an on-line annex which provides up-to-date information on new arsenic occurrences and developments. We invite readers to participate in updating this database at: http://www.iwawaterwiki.org/xwiki/bin/view/Articles/ExecutiveSummaryofArsenicContaminationintheWorld By synthesizing the known occurrences of arsenic world-wide, this reference book offers an essential tool for understanding and addressing the global arsenic geological-public health interface. Discounted ebook price available for customers from Developing Countries. Please contact [email protected] if you wish to purchase an ebook from a developing country @ £50.00 (PDF format). Author: Susan Murcott, Senior Lecturer, Civil and Environmental Engineering Department, Massachusetts Institute of Technology, USA Table of Contents: Executive Summary, African Region, Region of the Americas, Asia Region, European Region, Region of Australia and Oceania.
| Author | : H. Peter Van Straaten |
| Publisher | : Guelph, Ont. : Department of Land Resource Science, University of Guelph |
| Total Pages | : 338 |
| Release | : 2002 |
| Genre | : Minerals |
| ISBN | : 9780889555129 |
| Author | : Junaid Ahmad Malik |
| Publisher | : Springer Nature |
| Total Pages | : 449 |
| Release | : 2022-01-31 |
| Genre | : Technology & Engineering |
| ISBN | : 3030899845 |
This edited volume deals with the understanding of the issues concerned with the pollution caused by toxic elements and heavy metals and their impacts on the different agro-ecosystems as well as the techniques involved in sustainable remediation and amelioration of polluted soils. Furthermore, the book is a detailed comprehensive account for the treatment technologies from unsustainable to sustainable which includes chapters prepared by professionals with expertise in environmental microbiology, biotechnology, bioremediation, and environmental engineering. It focuses on the characterization, reclamation, bioremediation, and phytoremediation of polluted soils. The research presented also highlights some of the significantly important plant and microbial species involved in remediation, the physiology, biochemistry, and the mechanisms of remediation by various plants and microbes, and suggestions for future improvement of bioremediation technology. It offers insights into the current focus and recent advances in bioremediation and green technology applications for sustainable soil management.
| Author | : George J. Brewer |
| Publisher | : Academic Press |
| Total Pages | : 328 |
| Release | : 2020-06-14 |
| Genre | : Medical |
| ISBN | : 0128093013 |
Essential and Toxic Trace Elements and Vitamins in Human Health is a comprehensive guide to the wide variety of micronutrients that affect human health, including fat-soluble and water-soluble vitamins that support diverse biochemical functions, trace elements with established and suggested links to health maintenance, and elements with known human toxicity such as arsenic, cadmium, and lead. An essential reference text for nutritionists working in academia and functional food and supplement industries, dieticians, and clinicians, Essential and Toxic Trace Elements and Vitamins in Human Health provides an in-depth look at toxic trace elements and essential vitamins and minerals and their direct influence on the body's overall health with expert research from renowned scientists. - Presents a balanced scientific view of essential and nonessential micronutrients with an in-depth analysis of the biochemical functions each plays in human health - Examines particular micronutrients in detail with coverage of clinical aspects, interaction with other micronutrients, immunological effects, cognitive functions and epigenetics - Focuses on effective management of micronutrient deficiencies and on toxicity implications of overexposure
| Author | : International Atomic Energy Agency |
| Publisher | : |
| Total Pages | : 972 |
| Release | : 2020-09-30 |
| Genre | : |
| ISBN | : 9789201115201 |
This publication is a comprehensive contemporary 'one stop' summary and reference volume for world uranium geology and resources allowing insight into potential future uranium discoveries and supply. This is based upon, and updated from, the International Uranium Resource Evaluation Project (IUREP) undertaken by the International Atomic Energy Agency (IAEA) and the Nuclear Energy Agency, Organisation for Economic Cooperation and Development (OECD-NEA) with supporting data from 27 editions of the joint OECD-NEA/IAEA 'Red Book'. For the sake of completeness, this publication also includes a review and comparison of the various outputs of the original IUREP project with new data visualisation incorporating previously difficult to access information, as well as 15 global maps of different uranium deposit types as a separate Annex for download.
| Author | : Jose M. Arguello |
| Publisher | : Academic Press |
| Total Pages | : 478 |
| Release | : 2012-10-25 |
| Genre | : Science |
| ISBN | : 0123943906 |
This volume of Current Topics in Membranes focuses on metal transmembrane transporters and pumps, a recently discovered family of membrane proteins with many important roles in the physiology of living organisms. The book summarizes the most recent advances in the field of metal ion transport and provides a broad overview of the major classes of transporters involved in homeostasis of heavy metals. Various families of the transporters and metal specificities are discussed with the focus on the structural and mechanistic aspects of their function and regulation. The reader will access information obtained through a variety of approaches ranging from X-ray crystallography to cell biology and bioinformatics, which have been applied to transporters identified in diverse biological systems, such as pathogenic bacteria, plants, humans and others. Field is cutting-edge and a lot of the information is new to research community Wide breadth of topic coverage Contributors of high renown and expertise
| Author | : Peter Van Straaten |
| Publisher | : |
| Total Pages | : 440 |
| Release | : 2007 |
| Genre | : Agriculture |
| ISBN | : 9780968012352 |
Agrogeology is the study of minerals of importance to farming and horticulture, especially with regards to soil fertility and fertilizer components. This book provides background information on the relationships between rocks, soils and plants. It is based on a university course in Agrogeology taught at the University of Guelph.
| Author | : Evaldo L. Kothny |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1973 |
| Genre | : |
| ISBN | : 9780608039008 |
| Author | : Martin K Luckert |
| Publisher | : Routledge |
| Total Pages | : 282 |
| Release | : 2012-06-25 |
| Genre | : Nature |
| ISBN | : 1136549781 |
Forests and woodlands provide an enormous range of goods and services to society, from timber and firewood to medicinal plants, watershed protection, destinations for tourists and sacred sites. Only when these are understood and valued can forests and their resources be properly managed and conserved. This work shows how the complicated network of benefits can be untangled and sets out the different approaches needed to value them. It covers the analysis of plant-based markets, non-market valuation and decision frameworks such as cost-benefit analysis.
