Download or read book Issue Paper on the Human Health Effects of Metals written by and published by . This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heavy Metal Toxicity in Public Health written by John Kanayochukwu Nduka and published by BoD – Books on Demand. This book was released on 2020-06-24 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is often said that the “dosage” of any substance determines its remedy or poison effect. Heavy metal sources encompass sewage, pesticides, fertilizers, environmental contamination, occupational exposure/contact through inhalation, ingestion, and skin. Before the advent of technology/the industrial revolution, communicable diseases ravaged the human race but this seems to have given way to non-communicable diseases such as cancers, renal failure, hormonal distortion enzymes, inhibition of fetal growth, and DNA damage causing negative health issues due to heavy metals. This book brings to the fore probably the most recent experimental research/review on heavy metal contamination, remediating techniques, cellular tissue damage, and toxicological and antioxidant effects of heavy metals. It is hoped that its contents will make interesting reading for all.
Download or read book Toxic Metals and Environmental Issues written by V. P. Singh and published by Sarup & Sons. This book was released on 2005 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cellular Effects of Heavy Metals written by Gaspar Banfalvi and published by Springer Science & Business Media. This book was released on 2011-03-02 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term “heavy metals” is used as a group name of toxic metals and metalloids (semimetals) causing contaminations and ecotoxicity. In strict chemical sense the density of heavy metals is higher than 5 g/cm3. From biological point of view as microelements they can be divided into two major groups. a. For their physiological function organisms and cells require essential microelements such as iron, chromium (III), cobalt, copper, manganese, molidenium, zinc. b. The other group of heavy metals is toxic to the health or environment. Of highest concern are the emissions of As, Cd, Co, Cu, Hg, Mn, Ni, Pb, Sn, Tl. The toxicity of heavy metals is well known at organizational level, while less attention has been paid to their cellular effects. This book describes the toxicity of heavy metals on microorganisms, yeast, plant and animal cells. Other chapters of the book deal with their genotoxic, mutagenic and carcinogenic effects. The toxicity of several metals touch upon the aspects of environmental hazard, ecosystems and human health. Among the cellular responses of heavy metals irregularities in cellular mechanisms such as gene expression, protein folding, stress signaling pathways are among the most important ones. The final chapters deal with biosensors and removal of heavy metals. As everybody is eating, drinking and exposed to heavy metals on a daily basis, the spirit of the book will attract a wide audience.
Download or read book Issue Paper on Metal Exposure Assessment written by and published by . This book was released on 2004 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Health Effects of Metals and Related Substances in Drinking Water written by Dr. Marco Ferrante and published by IWA Publishing. This book was released on 2013-11-15 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metals are inorganic substances that occur naturally in geological formations. Naturally occurring metals are dissolved in water when it comes into contact with rock or soil material. Some metals are essential for life and are naturally available in our food and water. Trace amounts of metals are common in water, and these are normally not harmful to your health. In fact, some metals are essential to sustain life. Calcium, magnesium, potassium, and sodium must be present for normal body functions. Cobalt, copper, iron, manganese, molybdenum, selenium, and zinc are needed. However many of the metals and metalloids that are found in drinking water can have an adverse impact on human health. This book provides a 'state-of-the-art' review of the health implications of metals and metalloids in drinking water and is a key reference in the risk assessment and management of water supplies. The increased urbanization and increased water demand in industrial areas has amplified the metals problem in groundwater sources. In fact the contamination of our water resources by poisonous metals occurs largely due to human activity. These activities include industrial processes, such as electronics industry and mining activity, agricultural activities, and the dumping of wastes in landfills. The International standard references concerning water resources are various and, though they are based on WHO guidelines, they are extremely diversified in relation to local issues and emerging problems. This report pulls the information together to provide an important reference source.
Download or read book Heavy Metal Toxicity Environmental Concerns Remediation and Opportunities written by Rajeev Pratap Singh and published by Springer Nature. This book was released on 2023-10-24 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: This contributed volume covers a comprehensive account of the sources, toxic biological as well as environmental impacts, and possible remediation strategies for contamination by heavy metals. In biological systems, toxic metals affect the integrity of cellular organelles and act as carcinogens causing chromosomal aberrations or as systemic toxicants leading to cardiovascular, neurobehavioral, and immunological disorders. In plants, they interfere with photosynthesis, fertility, metabolite, and chlorophyll synthesis. Toxicity induced by heavy metals involves mechanistic approaches that need to be understood properly. They cannot be degraded by biological or chemical means and thus can only be converted to less harmful forms. The conventional detection methods include biosensors, voltammetry, atomic absorption spectrometry, and inductively coupled plasma with atomic emission spectrometry. All such strategies for metal detection and mitigation strategies are covered in this title under one section. This book incorporates classical views along with modern scientific approaches to develop an understanding of the subject matter suitable for academicians, researchers, planners, policymakers, NGOs, and environmental consultancies and raise awareness on this concern. Topics representing diverse sections namely environmental impacts, biological effects, and methods used for detection and remediation have been included to address all possible contemporary issues on the topic in one concise volume.
Download or read book Issue Paper on the Ecological Effects of Metals written by and published by . This book was released on 2004 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heavy Metal Toxicity written by Nitish Kumar and published by Springer. This book was released on 2024-06-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book brings together a diverse group of environmental science, sustainability, and health researchers to address the challenges posed by global mass poisoning caused by heavy metals contamination of soil and plants. In recent years, contamination of the environment by heavy metals has become a major concern. Their multiple industrial, domestic, agricultural, medical, and technological applications have led to their wide distribution in the environment, raising concerns over their potential effects on human health and the environment. Owing to their toxic, non-degradable, and bio-accumulative nature, the health burden on the population has increased significantly. Heavy metals such as arsenic, lead, mercury, cadmium, and uranium do not play a significant role in metabolism in the human body and are thus toxic. Their exposure in high concentration can cause acute toxicity resulting in acute health conditions, which is easy to observe and regulate, while similar is not visible for immediate action when their exposure is in trace amounts over the years. Heavy metals enter in the food chain through consumption of plant material. A high concentration of heavy metals has been found to be harmful to vegetation. As the heavy metals concentration in plants increases, it adversely affects several biological parameters and eventually renders the soil barren. The book sheds light on this global environmental issue and proposes solutions to contamination through multi-disciplinary approaches and case studies from different parts of the world. This book is a valuable resource to students, academicians, researchers, and environmental professionals who are doing field work on heavy metals contamination throughout the world.
Download or read book Changing Metal Cycles and Human Health written by J.O. Nriagu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: of metal interactions with subcellular biochemical systems usually either are metabolites of the system affected (porphyrinurias) or represent some specific function of a cellular system being impaired (proteinurias). One typically finds a continuum of symptoms, from the subtle or so-called "no effect" bio chemical and physiological indicators of exposure to severe clinical disease and death. This continuum is the basis of much of the controversy since many health officials follow the traditional practice of applying the "threshold health-effect" concept in evaluating the problems of environmental exposure to metals. The past decade or so, however, has seen a vast increase in our understanding of the effects of elevated concentrations of toxic metals in local populations and ecosystems. At the same time, there is a growing awareness that the effects of the metals which occur naturally in the environment must be distinguished from those imposed by the pollutant fraction. This point was amply document ed in a recent study of cadmium intake and cadmium in a number of human tissues in Sweden, Japan, and the United States, which showed fairly conclu sively that the background exposure in Japan was about threefold higher than in the other two countries (2). One immediate implication is that any health ef fect studies of cadmium in Japan using control groups within that country are liable to underestimate the difference between the exposed and the control groups simply because of the the high "background" intake.
Download or read book Heavy Metals and Health written by Lance Castillo and published by . This book was released on 2016 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heavy metals are persistent in the environment and their elevated emission during longer periods of time can cause contamination of the environment. They are emitted in all environmental media, but can also be easily transported between them due to the atmospheric deposition, water runoff, etc., and thus accumulate in the environment or penetrate the food chains. The main routes of human exposure to heavy metals are through ingestion, inhalation or via dermal contact. Hence, there is a need for better understanding of absorption, distribution and deposition of heavy metals in the human body. This information is of a crucial importance for the evaluation of heavy metal potential health implications. In this book, Chapter One provides an overview of the heavy metal health hazards, presented as a consequence of heavy metal pollution, their availability and cycling between different media in the environment. Chapter Two comprehensively discusses the roles and harmful effects of heavy metals on human health, as well as the sources and techniques of removing heavy metals from the environment. Chapter Three explores the mechanisms of mercury cardiovascular toxicity, with a particular emphasis on its effects toward endothelial cells. Chapter Four focuses on the effects of exposure to soil contaminated by metals. Chapter Five examines antimicrobial functionalized textiles. Chapter Six discusses thallium poisoning. Chapter Seven provides a review of heavy metal pollution, human exposure and public health implications in Nigeria.
Download or read book Heavy Metals and Human Health written by Simone Morais and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook on the Toxicology of Metals Volume I General Considerations written by Gunnar F. Nordberg and published by Academic Press. This book was released on 2021-11-30 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook on the Toxicology of Metals, Fifth Edition, Volume I: General Considerations is the first volume of a two-volume work that gives an overview and covers topics of general importance including reviews of various health effects of trace metals. The book emphasizes toxic effects in humans, along with discussions on the toxic effects of animals and biological systems in vitro when relevant. The book has been systematically updated with the latest studies and advances in technology and contains several new chapters. As a multidisciplinary resource that integrates both human and environmental toxicology, the book is a comprehensive and valuable reference for toxicologists, physicians, pharmacologists, and environmental scientists in the fields of environmental, occupational and public health. Contains peer-reviewed chapters that deal with the effects of metallic elements and their compounds on biological systems Includes information on sources, transport and the transformation of metals in the environment Covers the ecological effects of metals to provide a basis for better understanding of the potential for adverse effects on human health Provides critical information on the properties, use, biological monitoring, dose-response relationships, diagnosis, treatment and prevention of metallic elements and compounds
Download or read book Mechanism and Health Effects of Heavy Metal Toxicity in Humans written by Godwill Azeh Engwa and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several heavy metals are found naturally in the earth crust and are exploited for various industrial and economic purposes. Among these heavy metals, a few have direct or indirect impact on the human body. Some of these heavy metals such as copper, cobalt, iron, nickel, magnesium, molybdenum, chromium, selenium, manganese and zinc have functional roles which are essential for various diverse physiological and biochemical activities in the body. However, some of these heavy metals in high doses can be harmful to the body while others such as cadmium, mercury, lead, chromium, silver, and arsenic in minute quantities have delirious effects in the body causing acute and chronic toxicities in humans. The focus of this chapter is to describe the various mechanism of intoxication of some selected heavy metals in humans along with their health effects. Therefore it aims to highlight on biochemical mechanisms of heavy metal intoxication which involves binding to proteins and enzymes, altering their activity and causing damage. More so, the mechanism by which heavy metals cause neurotoxicity, generate free radical which promotes oxidative stress damaging lipids, proteins and DNA molecules and how these free radicals propagate carcinogenesis are discussed. Alongside these mechanisms, the noxious health effects of these heavy metals are discussed.
Download or read book Risk Assessment for Human Metal Exposures written by Gunnar F. Nordberg and published by Academic Press. This book was released on 2018-08-21 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Risk Assessment for Human Metal Exposures: Mode of Action and Kinetic Approaches examines the current principles of risk assessment in human metal exposures, with a focus on Mode of Action(MOA), Toxicokinetic and Toxicodynamic (TKTD) considerations, and computer models. Derived from the highly respected Handbook on the Toxicology of Metals, Fourth Edition (2014), the book summarizes principles and methods and provides examples of how MOA –TKTD can be used. In addition, it presents tactics on how information generated by such methods can be confirmed by epidemiological data. Furthermore, it demonstrates how epidemiological data can be confirmed and evaluated by the examined models and considerations. This resource uniquely integrates several important topics, such as risk assessment, characterization, management and communication—the classic risk assessment paradigm—with mode of action, TKTD, and epidemiology, all topics related to human exposure. Written by pioneers in the field, this book is an essential reference for researchers, students and technicians in toxicology and risk assessment. Covers fundamental risk assessment concerns for the effects of metals on human health Provides an easy-to-use structure to quickly locate specific methods Uses case studies to illustrate the methods and theories described Written to be understood by students, researchers and industry workers who need to conduct risk assessment in metals and human health
Download or read book Studies and Analysis of Heavy Metal Ions in Human Blood Samples written by Gaur Nidhi S and published by Independent Author. This book was released on 2023-03-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The environment in which we claim to "live" in has become a huge reservoir of toxic metals. Human health is under constant risk of deterioration due to increasing chronic exposure of such metals that adversely affect the quality of life of people. The expedition to meet man's basic need for food, clothing and shelter has continually heightened pollution of the biosphere. The deterioration of human health due to exposure to heavy metals has become a major issue of concern worldwide. Although adverse health effects caused by heavy metals have been known for a long time, exposure to heavy metals continues, and is even increasing in some parts of the world, particularly in less developed countries, even though emissions have declined in most developed countries over the last 100 years. The term "heavy metals" refers to any metallic element that has a relatively high density and is toxic or poisonous even at low concentration [1]. "Heavy metals" is a general collective term, which applies to the group of metals and metalloids with atomic density greater than 4 g/cm3, or 5 times or more, greater than water [2]. Heavy metals include lead (Pb), cadmium (Cd), zinc (Zn), mercury (Hg), arsenic (As), silver (Ag) chromium (Cr), copper (Cu) iron (Fe), and the platinum group elements [3]. Heavy metal toxicity is the excess of concentration of toxic heavy metals which have become concentrated as a result of human caused activities, enter in plant, animal and human tissues via inhalation, diet and manual handling, and can bind to, and interfere with the functioning of vital cellular components.
Download or read book Impact of Heavy Metals on the Environment written by Jean-Pierre Vernet and published by Elsevier Publishing Company. This book was released on 1992 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highlighted in this compilation of papers is the role and importance of heavy metals in the environment. It provides up-to-date information in a field of active research and progress, where the focus is on effects and interactions between the environment and organisms, as well as contaminant dynamics. Several papers address the impact of heavy metals on our health. The influence of metals on plants is described in an exhaustive study on lichens, which have been widely used as biomonitors for environmental contamination by heavy metals. Metals are also accumulated by animals, as seen in a chapter which focusses on sediment/benthic organism interactions and biomonitoring in fish. Soil interactions are discussed, as well as regional studies of freshwater sediments and the marine environment. The final part of the book addresses a crucial problem: the management of stabilized municipal waste sludges. As a result, the most important and significant recent trends are included, emphasizing interactions with and impacts of heavy metals on humans, animals, plants and soils.
