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Author: Leonard H. Weinstein Publisher: CABI ISBN: 9780851998725 Category : Science Languages : en Pages : 320
Book Description
Fluoride pollution is a problem in all industrialized countries. The topic of fluorides in medicine and agriculture, and fluoridation of public water supplies is one that has attracted much controversy. This book aims to review the research findings, and provide a comprehensive reference on the effects of fluorides on plants and animals. It also includes information on conducting field surveys, establishing air quality criteria and standards, and the problems associated with fluoride analysis in air, water, soil and vegetation.
Author: Leonard H. Weinstein Publisher: CABI ISBN: 9780851998725 Category : Science Languages : en Pages : 320
Book Description
Fluoride pollution is a problem in all industrialized countries. The topic of fluorides in medicine and agriculture, and fluoridation of public water supplies is one that has attracted much controversy. This book aims to review the research findings, and provide a comprehensive reference on the effects of fluorides on plants and animals. It also includes information on conducting field surveys, establishing air quality criteria and standards, and the problems associated with fluoride analysis in air, water, soil and vegetation.
Author: T. Nakajima Publisher: Elsevier ISBN: 0080525482 Category : Technology & Engineering Languages : en Pages : 715
Book Description
This book summarizes recent progresses in inorganic fluorine chemistry. Highlights include new aspects of inorganic fluorine chemistry, such as new synthetic methods, structures of new fluorides and oxide fluorides, their physical and chemical properties, fluoride catalysts, surface modifications of inorganic materials by fluorination process, new energy conversion materials and industrial applications. Fluorine has quite unique properties (highest electronegativity; very small polarizability). In fact, fluorine is so reactive that it forms fluorides with all elements except with the lightest noble gases helium, neon and argon. Originally, due to its high reactivity, fluoride chemistry faced many technical difficulties and remained undeveloped for many years. Now, however, a large number of fluorine-containing materials are currently produced for practical uses on an industrial scale and their applications are rapidly extending to many fields. Syntheses and structure analyses of thermodynamically unstable high-oxidation-state fluorides have greatly contributed to inorganic chemistry in this decade. Fluoride catalysts and surface modifications using fluorine are developing a new field of fluorine chemistry and will enable new syntheses of various compounds. The research on inorganic fluorides is now contributing to many chemical energy conversion processes such as lithium batteries. Furthermore, new theoretical approaches to determining the electronic structures of fluorine compounds are also progressing. On the industrial front, the use of inorganic fluorine compounds is constantly increasing, for example, in semi-conductor industry. "Advanced Inorganic Fluorides: Synthesis, Characterization and Applications" focuses on these new features in inorganic fluorine chemistry and its industrial applications. The authors are outstanding experts in their fields, and the contents of the book should prove to be of valuable assistance to all chemists, graduates, students and researchers in the field of fluorine chemistry.
Author: National Research Council Publisher: National Academies Press ISBN: 030910128X Category : Nature Languages : en Pages : 531
Book Description
Most people associate fluoride with the practice of intentionally adding fluoride to public drinking water supplies for the prevention of tooth decay. However, fluoride can also enter public water systems from natural sources, including runoff from the weathering of fluoride-containing rocks and soils and leaching from soil into groundwater. Fluoride pollution from various industrial emissions can also contaminate water supplies. In a few areas of the United States fluoride concentrations in water are much higher than normal, mostly from natural sources. Fluoride is one of the drinking water contaminants regulated by the U.S. Environmental Protection Agency (EPA) because it can occur at these toxic levels. In 1986, the EPA established a maximum allowable concentration for fluoride in drinking water of 4 milligrams per liter, a guideline designed to prevent the public from being exposed to harmful levels of fluoride. Fluoride in Drinking Water reviews research on various health effects from exposure to fluoride, including studies conducted in the last 10 years.
Author: Institute of Medicine Publisher: National Academies Press ISBN: 0309064031 Category : Medical Languages : en Pages : 449
Book Description
Since 1941, Recommended Dietary Allowances (RDAs) has been recognized as the most authoritative source of information on nutrient levels for healthy people. Since publication of the 10th edition in 1989, there has been rising awareness of the impact of nutrition on chronic disease. In light of new research findings and a growing public focus on nutrition and health, the expert panel responsible for formulation RDAs reviewed and expanded its approachâ€"the result: Dietary Reference Intakes. This new series of references greatly extends the scope and application of previous nutrient guidelines. For each nutrient the book presents what is known about how the nutrient functions in the human body, what the best method is to determine its requirements, which factors (caffeine or exercise, for example) may affect how it works, and how the nutrient may be related to chronic disease. The first volume of Dietary Reference Intakes includes calcium, phosphorus, magnesium, vitamin D, and fluoride. The second book in the series presents information about thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, pantothenic acid, biotin, and choline. Based on analysis of nutrient metabolism in humans and data on intakes in the U.S. population, the committee recommends intakes for each age groupâ€"from the first days of life through childhood, sexual maturity, midlife, and the later years. Recommendations for pregnancy and lactation also are made, and the book identifies when intake of a nutrient may be too much. Representing a new paradigm for the nutrition community, Dietary Reference Intakes encompasses: Estimated Average Requirements (EARs). These are used to set Recommended Dietary Allowances. Recommended Dietary Allowances (RDAs). Intakes that meet the RDA are likely to meet the nutrient requirement of nearly all individuals in a life-stage and gender group. Adequate Intakes (AIs). These are used instead of RDAs when an EAR cannot be calculated. Both the RDA and the AI may be used as goals for individual intake. Tolerable Upper Intake Levels (ULs). Intakes below the UL are unlikely to pose risks of adverse health effects in healthy people. This new framework encompasses both essential nutrients and other food components thought to pay a role in health, such as dietary fiber. It incorporates functional endpoints and examines the relationship between dose and response in determining adequacy and the hazards of excess intake for each nutrient.
Author: N. Watanabe Publisher: Elsevier ISBN: 148329000X Category : Science Languages : en Pages : 276
Book Description
This volume reviews the preparation, structures, physicochemical properties and applications of graphite fluorides, mainly based on the results obtained by the authors. Their interest in graphite fluorides stemmed from research on the ``anode effect'', in electrolytic production of fluorine gas in KF.2HF melt using carbon electrodes. The formation of a thin graphite fluoride film on carbon anodes made it difficult to continue the electrolysis of KF.2HF at a high current density. To elucidate this phenomenon studies on graphite fluoride were initiated. In the course of these systematic studies, the use of graphite fluoride in high-energy batteries became successful: a new graphite fluoride (C2F)n was found; and another fluorineographite intercalation compound with ionic bonding, CxF, was synthesized. During this research it was established that CxF is closely associated with the ``anode effect''. The book will be of interest to all those involved in the study and research of graphite fluorides, particularly fluorine chemists, electrochemists, and fluorine and battery companies.
Author: J.H. Simons Publisher: Elsevier ISBN: 0323142451 Category : Science Languages : en Pages : 815
Book Description
Fluorine Chemistry, Volume IV provides an extensive survey and discussion on the physiological properties of fluoride ion and substances capable of producing it in aqueous solution. This book elaborates the detrimental effects of excessive fluoride ingestion, through the beneficial effects of optimal amounts, to recognized detrimental effects, such as dental caries accompanied by suboptimal fluoride intake. Fluoride metabolism is discussed in detail, including the capacity for storage of fluoride by the bones and rates of excretion of fluoride from the body. This text also covers the relation of fluoride ion to the health of teeth and bones. This publication is a good source for chemists and clinicians intending to acquire knowledge of the biological effects of fluoride.
Author: Alexandre Rezende Vieira Publisher: Karger Medical and Scientific Publishers ISBN: 3318069132 Category : Medical Languages : en Pages : 165
Book Description
Individual susceptibility to disease (i.e., one’s own genetic background) is one of the three main components classically described in the etiology of dental caries. Hence, genes influence susceptibility to erosive tooth wear, dental development, and response to treatments and interventions. This publication is an up-to-date overview of individual susceptibility to dental caries, erosive tooth wear, and disturbances of dental development from different clinically relevant perspectives. One of the most recognized scientists in this field reports on recent research relating to human genetics – from general summaries to recommendations for daily clinical work and population-level interventions. This book covers all aspects of individual susceptibility to dental caries and erosive tooth wear. Several chapters deal with potential biological mechanisms, with additional ones providing a strong foundation in human genetics, and other chapters touch on efficacy of therapies and alternative concepts. This book is particularly recommended to dental medicine students, practitioners, other oral healthcare professionals, and scientists with an interest in translational research on dental caries and erosive tooth wear.
Author: Axel Haupt Publisher: Walter de Gruyter GmbH & Co KG ISBN: 3110659506 Category : Science Languages : en Pages : 846
Book Description
Organic and Inorganic Fluorine Chemistry provides an introduction to fluorine chemistry and an overview of the most important fluorinated compounds and general preparation techniques. The book is divided into three parts, covering general aspects, inorganic fluorides and fluoroorganic compounds. The inorganic part presents the most important element fluorides and oxyfluorides, their preparation as well as their most characteristic properties. The organic section focuses on the different types of fluorination and the corresponding reagents. The application of these techniques is discussed for many different types of substrates. The book addresses advanced students in chemistry as well as researchers in academia and industry. The readers will benefit from a large number of original references which give access to further information. In addition, study questions at the end of each chapter will help to repeat and internalise the most important aspects.
Author: Gary Pittman Publisher: Lulu.com ISBN: 0615490409 Category : Law Languages : en Pages : 150
Book Description
Gary Pittman and his co-workers were systematically exposed to toxic substances while working for Occidental Chemical Corporation's north Florida phosphoric acid plants and mines. "Phosphate - Fluorides - Toxic Torts" is a personal narrative by Pittman describing his seven-year battle with Occidental while suffering with chemical poisoning, and the obstacles he had to overcome in the pursuit of compensation. Occidental Chemical Corporation was no stranger to Toxic Tort litigation. They were the company named in the 1979 landmark case, "United States v. Occidental," about the "Love Canal" public health disaster in the late 1970s. In 1995, the "Love Canal" case was still in the courts when Pittman, a co-worker, and attorney, Dorothy Clay Sims took on the mammoth Occidental machine with their legions of law firms. Did Pittman win? Yes and no. When you have your health, you can always make more money, but when you are poisoned and debilitated, there's not enough money in the world to buy back your health.
Author: Leonard H. Weinstein
Author: Leonard H. Weinstein
Author: T. Nakajima
Author: National Research Council
Author: Institute of Medicine
Author: N. Watanabe
Author: John Yiamouyiannis
Author: J.H. Simons
Author: Alexandre Rezende Vieira
Author: Axel Haupt
Author: Gary Pittman