The Biological and Environmental Chemistry of Chromium

The Biological and Environmental Chemistry of Chromium PDF Author: Sidney A. Katz
Publisher: Wiley-VCH
ISBN:
Category : Medical
Languages : en
Pages : 248

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Book Description

The Biological and Environmental Chemistry of Chromium

The Biological and Environmental Chemistry of Chromium PDF Author: Sidney A. Katz
Publisher: Wiley-VCH
ISBN:
Category : Medical
Languages : en
Pages : 248

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Book Description


Environmental Chemistry of Chromium

Environmental Chemistry of Chromium PDF Author: S. Krishnamurthy
Publisher:
ISBN:
Category : Chromium
Languages : en
Pages : 4

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Chromium in the Natural and Human Environments

Chromium in the Natural and Human Environments PDF Author: Jerome O. Nriagu
Publisher: John Wiley & Sons
ISBN: 9780471856436
Category : Science
Languages : en
Pages : 602

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Book Description
Provides a comprehensive chemical and biochemical treatment on the effects of chromium in the environment and in man. Such an integrated treatment of the chemical and biochemical aspects of chromium is novel and has not appeared in the published literature. Reviews the information on global cycling and environmental occurrence of chromium compounds, which defines the extent of the environmental and toxicological concern. The treatment of chromium chemistry provides the basis for toxicological models of chromium hypersensitivity, mutagenicity, carcinogenicity, and toxicokinetics. Chapters contain graphical representations of the voluminous mutagenicity and animal carcinogenicity data according to chromium compound type, and a tabular summary of all published epidemiological data, broken down according to industry. Also covers clinical patterns, prognosis, pathogenesis, prophylaxis, and environmental and biological monitoring.

Biological and Environmental Aspects of Chromium

Biological and Environmental Aspects of Chromium PDF Author: S. Langård
Publisher: Elsevier
ISBN: 1483290182
Category : Medical
Languages : en
Pages : 296

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Book Description
Biological and Environmental Aspects of Chromium focuses on the biological and environmental aspects of chromium and its compounds, with emphasis on the most important aspects of their toxicology and physiology. Topics covered range from the production and occupational exposure of chromium compounds to the presence of chromium in air, soil, and natural waters. The applications of chromium in cell biology and medicine are also discussed. Comprised of 11 chapters, this volume begins with an overview of the toxic and carcinogenic effects of chromium and chromium compounds, followed by a discussion on the production and occupational exposure of chromium compounds. The reader is then introduced to the more common analytical methods used in the determination of chromium in environmental and biological samples. Subsequent chapters explore the nutritional role of chromium; absorption, transport, and excretion of chromium in humans and animals; mutagenic and cytogenetic effects of chromium compounds; and organ toxicity of chromium in animals. The carcinogenic effects of chromium, including its effects on the skin, are also considered. This monograph will be of interest to students, practitioners, and researchers in the fields of biology, physiology, and chemistry, as well as those with an objective interest in the ways in which chromium and its compounds act in biological materials and in the human environment.

Thermodynamic Properties and Environmental Chemistry of Chromium

Thermodynamic Properties and Environmental Chemistry of Chromium PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
Values of standard entropy, standard enthalpy of formation, and standard free energy of formation for Cr and its solid and aqueous species are tabulated in this report. These values were selected or recalculated after careful evaluation of the best available current thermochemical data. The basis for selection of data centered on conformation with the recent studies of Vasil'ev et al. (1977a, b, 1978, 1980, 1981) for Cr/sup 3 +/ data and O'Hare and Boerio (1975) for CrO4/sup 2 -/ data. The thermodynamic data presented in this report will be incorporated into the data base of the geochemical computer model, MINTEQ. The distribution of Cr in the environment among its aqueous inorganic species is, according to the thermodynamic data, highly dependent upon pH and Eh and the presence of complexing ligands. The speciation of Cr in natural waters is also controlled by reduction and complexation by organic matter, adsorption and oxidation by Mn-oxide in suspended particulate matter and sediment, and reduction by H2S released from anoxic sediments. 89 references, 8 figures, 11 tables.

The Environmental Chemistry Of Chromium

The Environmental Chemistry Of Chromium PDF Author: W. H. Hartford
Publisher:
ISBN:
Category :
Languages : en
Pages : 8

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Chemical Processes in Marine Environments

Chemical Processes in Marine Environments PDF Author: Antonio Gianguzza
Publisher: Springer Science & Business Media
ISBN: 366204207X
Category : Science
Languages : en
Pages : 446

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Book Description
This book discusses recent developments in the study of chemical processes and equilibria in the marine environment and in the air/water and water/sediment interfaces. The chemical cycle of carbon as well as the effect of organic substances on the speciation and distribution of inorganic and organometallic substances are extensively discussed. Much of the recent progress in the area is the direct result of advanced analytical technologies and chemometric applications which are highlighted in the book.

Chromium in Soil - Perspectives in Chemistry, Health, and Environmental Regulation

Chromium in Soil - Perspectives in Chemistry, Health, and Environmental Regulation PDF Author: Paul T. Kostecki
Publisher: CRC Press
ISBN: 9780849311574
Category : Technology & Engineering
Languages : en
Pages : 266

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Book Description
The importance of understanding complex toxicological and chemical properties of hexavalent and trivalent chromium has increased rapidly over the last few years as state and federal regulators reevaluate environmental standards. The risk management of chromium-contaminated soils continues to be a very dynamic process that presents interesting challenges. Chromium in Soil discusses the challenges faced by those investigating and remediating chromium-impacted soils and groundwater. The chapters address numerous ground-breaking developments in various fields of environmental chromium research, including toxicity, chemistry, environmental fate and transport, remediation technology, and health-based cleanup standards.

The Bioinorganic Chemistry of Chromium

The Bioinorganic Chemistry of Chromium PDF Author: John B. Vincent
Publisher: John Wiley & Sons
ISBN: 1118458850
Category : Science
Languages : en
Pages : 259

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Book Description
Chromium exists in nature as complexes of two stable oxidation states – trivalent chromium(III) and hexavalent chromium(VI). Although trivalent chromium is required in trace amounts for sugar and lipid metabolism in humans and its deficiency may cause a disease called chromium deficiency; hexavalent chromium is toxic and carcinogenic. As chromium compounds were used in dyes and paints and the tanning of leather, these compounds are often found in soil and groundwater at abandoned industrial sites, now needing environmental cleanup and remediation. The Bioinorganic Chemistry of Chromium: From Biochemistry to Environmental Toxicology takes a critical look at what the biochemical data indicate about chromium's role in the body and the biological mechanisms of its toxicology. Topics covered include: What do we know about the biochemical roles and mechanisms of chromium? Is chromium an essential element in the mammalian diet? Is chromium(III) effective as a nutraceutical, a therapeutic agent, and as a supplement in animal feed? What is the biochemistry behind the toxicology of chromium(III) and chromium(VI):the mechanisms of metabolism, genetic and epigenetic effects, and disruption of cell signalling? What are the current chromium(VI) policies and positions from regulatory agencies? The Bioinorganic Chemistry of Chromium: From Biochemistry to Environmental Toxicology is an important contribution to the bioinorganic and trace element biochemical fields which will find a place on the bookshelves of bioinorganic chemists, biochemists, inorganic chemists, toxicologists, nutritionists and regulatory affairs professionals.

Inorganic Chromium(III) Compounds

Inorganic Chromium(III) Compounds PDF Author: Tiina Santonen
Publisher: World Health Organization
ISBN: 9241530766
Category : Business & Economics
Languages : en
Pages : 101

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Book Description
This document on inorganic chromium (III) compounds provides summaries of the relevant scientific information concerning the potential effects of these chemicals upon human health and/or the environment. Chemical safety cards on the most common inorganic trivalent chromium compounds are reproduced in this document.