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Author: Edward Todd Urbansky
Publisher: Springer Science & Business Media
ISBN: 1461543037
Category : Science
Languages : en
Pages : 299
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Book Description
Based on a symposium sponsored by the Environmental Division of the American Chemical Society, Perchlorate in the Environment is the first comprehensive book to address perchlorate as a potable water contaminant. The two main topics are: analytical chemistry (focusing on ion chromatography and electrospray ionization mass spectrometry), and treatment or remediation. Also included are topics such as ion exchange, phytoremediation, bacterial reduction of perchlorate, bioreactors, and in situ bioremediation. To provide complete coverage, background chapters on fundamental chemistry, toxicology, and reulatory issues are also included. The authors are environmental consultants, government researchers, industry experts, and university professors from a wide array of disciplines.
Author: Edward Todd Urbansky
Publisher: Springer Science & Business Media
ISBN: 1461543037
Category : Science
Languages : en
Pages : 299
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Book Description
Based on a symposium sponsored by the Environmental Division of the American Chemical Society, Perchlorate in the Environment is the first comprehensive book to address perchlorate as a potable water contaminant. The two main topics are: analytical chemistry (focusing on ion chromatography and electrospray ionization mass spectrometry), and treatment or remediation. Also included are topics such as ion exchange, phytoremediation, bacterial reduction of perchlorate, bioreactors, and in situ bioremediation. To provide complete coverage, background chapters on fundamental chemistry, toxicology, and reulatory issues are also included. The authors are environmental consultants, government researchers, industry experts, and university professors from a wide array of disciplines.
Author: Kathleen Sellers
Publisher: CRC Press
ISBN: 9780849380815
Category : Technology & Engineering
Languages : en
Pages : 258
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Book Description
The development of analytical methods for identifying widespread perchlorate contamination brought about an explosion of research into the environmental problems and their potential solutions along with a corresponding increase in the availability of information. Unlike reference works that focus on only a few aspects of this contaminant, Perchlorate: Environmental Problems and Solutions offers a comprehensive, single source of information on perchlorate contamination in the environment. Summarizing the state of the science and developments in engineering, the book describes: Common sources of perchlorate Its behavior in the environment Methods for analyzing perchlorate in environmental samples Potential risks to human health and the environment Regulatory standards and criteria Techniques for remediating environmental contamination The authors illustrate these points with case studies of perchlorate contamination in soil, groundwater, and surface water. These case studies provide perspective on issues commonly faced by scientists, engineers, and managers of perchlorate-impacted sites. Organized to follow the logical sequence of identifying and solving contamination problems, the book provides the foundation necessary to understand perchlorate's occurrence, environmental behavior, regulatory status, and remediation.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309181356
Category : Science
Languages : en
Pages : 276
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Book Description
Perchlorateâ€"a powerful oxidant used in solid rocket fuels by the military and aerospace industryâ€"has been detected in public drinking water supplies of over 11 million people at concentrations of at least 4 parts per billion (ppb). High doses of perchlorate can decrease thyroid hormone production by inhibiting the uptake of iodide by the thyroid. Thyroid hormones are critical for normal growth and development of the central nervous system of fetuses and infants. This report evaluates the potential health effects of perchlorate and the scientific underpinnings of the 2002 draft risk assessment issued by the U.S. Environmental Protection Agency (EPA). The report finds that the body can compensate for iodide deficiency, and that iodide uptake would likely have to be reduced by at least 75% for months or longer for adverse health effects, such as hypothryroidism, to occur. The report recommends using clinical studies of iodide uptake in humans as the basis for determining a reference dose rather than using studies of adverse health effects in rats that serve as EPA's basis. The report suggests that daily ingestion of 0.0007 milligrams of perchlorate per kilograms of body weightâ€"an amount more than 20 times the reference dose proposed by EPAâ€"should not threaten the health of even the most sensitive populations.
Author: Baohua Gu
Publisher: Springer Science & Business Media
ISBN: 0387311130
Category : Technology & Engineering
Languages : en
Pages : 413
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Book Description
Provides a detailed description of perchlorate chemistry and recent advances in innovative remediation technologies for perchlorate contamination and their pros and cons Additionally, the first book to describe the natural occurrence of perchlorate and its unique isotopic signatures for environmental forensics and its detection in the environment, particularly the real-time analysis using surface enhanced Raman spectroscopy
Author:
Publisher:
ISBN:
Category : Perchloric acid
Languages : en
Pages : 278
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Book Description
Author: Lawrence E. Matthews
Publisher: Nova Science Publishers
ISBN: 9781617618123
Category : Perchlorates
Languages : en
Pages : 0
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Book Description
Perchlorates are the salts derived from perchloric acid (HClO4). They occur both naturally and through manufacturing. They have been used as a medicine for more than 50 years to treat thyroid gland disorders and are used extensively within the pyrotechnics industry, and ammonium perchlorate is also a component of solid rocket fuel. This book presents current research data from across the globe in the study of perchlorates, their production, uses, and health effects. Some topics discussed, herein, are: trends in the study of the electrochemical stability of perchlorate ions; the structural and vibrational properties of chromyl perchlorate; perchlorate formation in electrochemical water disinfection; metal perchlorates as Lewis acids; alkaline earth metal perchlorates; and removal of perchlorate from water.
Author: Victor R Preedy
Publisher: Academic Press
ISBN: 0080920861
Category : Technology & Engineering
Languages : en
Pages : 1335
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Book Description
Over two billion people worldwide are at risk for the spectrum of disorders known as "The Iodine Deficiency Disorders." 1-10% will suffer cretinism; 5-30% will have some sort of brain damage or neurological impairment and 30-70% will be hypothyroid. The causes of iodine deficiencies can be considered from both simplistic and more complex perspectives: From the leaching of iodine from soil resulting in crops with low iodine content to malnutrition resulting in impaired iodine absorption. Poor dietary diversification and impoverished socio-economic development can also lead to iodine deficiencies. Although it is possible to diagnose and treat deficiencies, there is still an ongoing dialogue regarding the detailed molecular pathology of iodine homeostatis, how hypothyroidism impacts the body tissues, and efficient diagnosis and treatment of the Iodine Deficiency Disorders. This Handbook provides a resource of information on the various pathways and processes based on different countries or diseases. Because there is a constant flow of new information on iodine and related disorders, the goal of this Handbook is to provide a base of scientific information upon which additional knowledge can be applied. - Provides important information on one of the most common micro-nutrient deficiencies in the world, the most important "single nutrient-multiple consequences" paradigm today - Includes information on iodine-related diseases, including those that are common, preventable and treatable - Provides insight from a broad perspective of viewpoints -- from subcellular transports to economic impact
Author: Paul L. Brown
Publisher: John Wiley & Sons
ISBN: 3527656200
Category : Science
Languages : en
Pages : 1449
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Book Description
Endlich ein Fachbuch, das die Theorie, Methoden und die verschiedenen Arten von Metall-Ionen-Komplexen in Wasser (Hydrolyse) umfassend behandelt. Geschrieben wurde dieses Referenzwerk von einem Kernchemiker aus dem Hochschulbereich und einem Geochemiker aus der Industrie. Behandelt werden Kationen- und Anionen-Komplexe sowie die Metall-Ionen-Hydrolyse, zu der zunächst Hintergrundinformationen geliefert werden, bevor eine Beschreibung der Dissoziation von Wasser, aller verschiedenen Hydrolysekomplexe und Verbindungen von Metall und Wasser folgt. Ein Muss für Wissenschaftler im universitären Umfeld und in der Industrie, die sich mit diesem interdisziplinären Thema beschäftigen.
Author: Vigor Yang
Publisher: AIAA
ISBN: 9781600864377
Category : Ballistics, Interior
Languages : en
Pages : 1038
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Book Description
Author: Gerassimos Arapis
Publisher: Springer
ISBN: 9789048107421
Category : Science
Languages : en
Pages : 360
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Book Description
The science of ecotoxicology and the practice of ecological risk assessment are evolving rapidly. Ecotoxicology as a subject area came into prominence in the 1960s after the publication of Rachel Carson's book on the impact of pesticides on the environment. The rise of public and scientific concern for the effects of chemical pollutants on the environment in the 1960s and 1970s led to the development of the discipline of ecotoxicology, a science that takes into account the effects of chemicals in the context of ecology. Until the early 1980s, in spite of public concern and interest among scientists, the assessment of ecological risks associated with natural or synthetic pollutants was not considered a priority issue by most government. However, as the years passed, a better understanding of the importance of ecotoxicology emerged and with it, in some countries, the progressive formalization of an ecological risk assessment process. Ecological risk assessment is a conceptual tool for organizing and analyzing data and information to evaluate the likelihood that one or more stressors are causing or will cause adverse ecological effects. Ecological risk assessment allows risk managers to consider available scientific information when selecting a course of action, in addition to other factors that may affect their decision (e. g. , social, legal, political, or economic). Ecological risk assessment includes three phases (problem formulation, analysis, and risk characterization).
