Naturally Produced Organohalogens

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Naturally-Produced Organohalogens

Author : Anders Grimvall
Publisher : Springer Science & Business Media
ISBN 13 : 9401100616
Total Pages : 421 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Naturally-Produced Organohalogens by : Anders Grimvall

Download or read book Naturally-Produced Organohalogens written by Anders Grimvall and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Should the production and use of chlorine and all chlorinated organic compounds be halted, in view of their adverse effects on the environment and human health? Those in favour argue that certain chlorinated compounds (PCBs, DDT, CFCs, etc.) have large negative environmental effects. The use of chlorine in disinfectants leads to the production of chloroform, while bulk products (PVC) contribute to the production of chlorinated dibenzo-p-dioxins and dibenzofurans when they are burned. Those against argue that chlorine and many chlorinated compounds are essential in the control of human health (the prevention of disease transmitted through drinking water that has not been disinfected), and that chlorinated compounds are indispensable intermediates in many production processes, representing a vast economic value. But such discussions often ignore the fact that Nature contributes significantly to the production of chlorinated organic compounds. More than 1000 such compounds are known, and their contribution to the biogeochemical cycling of chlorine is underestimated. Chlorine is organically bound in large quantities to humic materials, and natural production mechanisms are known for low molecular weight compounds (methyl chloride, chloroform, chlorinated dibenzo-p-dioxins and dibenzofurans). The role of these compounds in the environment is largely unknown. Naturally-Produced Organohalogens gives a complete overview of the present state of knowledge on the subject, giving a much needed balance to the argument sketched out above.

Natural Production of Organohalogen Compounds

Author : Gordon W. Gribble
Publisher : Springer
ISBN 13 : 3540452931
Total Pages : 319 pages
Book Rating : 4.5/5 (44 download)

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Book Synopsis Natural Production of Organohalogen Compounds by : Gordon W. Gribble

Download or read book Natural Production of Organohalogen Compounds written by Gordon W. Gribble and published by Springer. This book was released on 2005-07-25 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the state-of-the-art knowledge on naturally occurring organohalogens, of which more than 3700 are documented. The chapters cover all aspects of this field, including the structural diversity and sources of organohalogens, the mechanisms for their formation and biodegradation, the clinical use of dichloroacetate, and the synthesis of the powerful anticancer chlorine-containing cryptophycin. Both biogenic and abiogenic sources of organohalogens are treated, the latter of which include volcanic emissions and abiogenic formation in soil. Halogenation in humans, fungi, and in the ocean are covered in separate chapters. Sources and biosynthesis of the relatively rare natural organofluorines are also discussed in this volume. By better understanding of the role nature plays in the area of organohalogens, we can more intelligently regulate the production, use, and disposal of man-made organohalogen compounds.

Naturally Occurring Organohalogen Compounds - A Comprehensive Update

Author : Gordon W. Gribble
Publisher : Springer Science & Business Media
ISBN 13 : 3211993231
Total Pages : 622 pages
Book Rating : 4.2/5 (119 download)

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Book Synopsis Naturally Occurring Organohalogen Compounds - A Comprehensive Update by : Gordon W. Gribble

Download or read book Naturally Occurring Organohalogen Compounds - A Comprehensive Update written by Gordon W. Gribble and published by Springer Science & Business Media. This book was released on 2009-12-02 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the long association of organohalogen compounds with human activities, nature is the producer of nearly 5,000 halogen-containing chemicals. Once dismissed as accidents of nature or isolation artifacts, organohalogen compounds represent an important and ever growing class of natural products, in many cases exhibiting exceptional biological activity. Since the last comprehensive review in 1996 (Vol. 68, this series), there have been discovered an additional 2,500 organochlorine, organobromine, and other organohalogen compounds. These natural organohalogens are biosynthesized by bacteria, fungi, lichen, plants, marine organisms of all types, insects, and higher animals including humans. These compounds are also formed abiogenically, as in volcanoes, forest fires, and other geothermal events.In some instances, natural organohalogens are precisely the same chemicals that man synthesizes for industrial use, and some of the quantities of these natural chemicals far exceed the quantities emitted by man.

Naturally Occurring Organohalogen Compounds

Author : A. Douglas Kinghorn
Publisher : Springer Nature
ISBN 13 : 3031266293
Total Pages : 553 pages
Book Rating : 4.0/5 (312 download)

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Book Synopsis Naturally Occurring Organohalogen Compounds by : A. Douglas Kinghorn

Download or read book Naturally Occurring Organohalogen Compounds written by A. Douglas Kinghorn and published by Springer Nature. This book was released on 2023-07-24 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume is the third in a trilogy that documents naturally occurring organohalogen compounds, bringing the total number — from fewer than 25 in 1968 — to approximately 8,000 compounds to date. Nearly all of these natural products contain chlorine or bromine, with a few containing iodine and, fewer still, fluorine. Produced by ubiquitous marine (algae, sponges, corals, bryozoa, nudibranchs, fungi, bacteria) and terrestrial organisms (plants, fungi, bacteria, insects, higher animals) and universal abiotic processes (volcanos, forest fires, geothermal events), organohalogens pervade the global ecosystem. Newly identified extraterrestrial sources are also documented. In addition to chemical structures, biological activity, biohalogenation, biodegradation, natural function, and future outlook are presented.

Naturally Produced Organohalogens

Author : DECHEMA, Gesellschaft für Chemische Technik und Biotechnologie
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (248 download)

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Book Synopsis Naturally Produced Organohalogens by : DECHEMA, Gesellschaft für Chemische Technik und Biotechnologie

Download or read book Naturally Produced Organohalogens written by DECHEMA, Gesellschaft für Chemische Technik und Biotechnologie and published by . This book was released on 2001 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book of Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (223 download)

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Book Synopsis Book of Abstracts by :

Download or read book Book of Abstracts written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Organohalide-Respiring Bacteria

Author : Lorenz Adrian
Publisher : Springer
ISBN 13 : 3662498758
Total Pages : 620 pages
Book Rating : 4.6/5 (624 download)

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Book Synopsis Organohalide-Respiring Bacteria by : Lorenz Adrian

Download or read book Organohalide-Respiring Bacteria written by Lorenz Adrian and published by Springer. This book was released on 2016-08-03 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the current state of knowledge concerning bacteria that use halogenated organic compounds as respiratory electron acceptors. The discovery of organohalide-respiring bacteria has expanded the range of electron acceptors used for energy conservation, and serves as a prime example of how scientific discoveries are enabling innovative engineering solutions that have transformed remediation practice. Individual chapters provide in-depth background information on the discovery, isolation, phylogeny, biochemistry, genomic features, and ecology of individual organohalide-respiring genera, including Dehalococcoides, Dehalogenimonas, Dehalobacter, Desulfitobacterium and Sulfurospirillum, as well as organohalide-respiring members of the Deltaproteobacteria. The book introduces readers to the fascinating biology of organohalide-respiring bacteria, offering a valuable resource for students, engineers and practitioners alike.

Organic Micropollutants in the Aquatic Environment

Author : G. Angeletti
Publisher : Springer Science & Business Media
ISBN 13 : 9401133565
Total Pages : 545 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Organic Micropollutants in the Aquatic Environment by : G. Angeletti

Download or read book Organic Micropollutants in the Aquatic Environment written by G. Angeletti and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than 10 years after the "First European Symposium on Organic Micropollutants in the Aquatic Environment", the "Sixth Symposium" was held in Lisbon (Portugal) from 22 to 24 May 1990. The Symposium was organised within the framework of the Concerted Action COST 641 * which is included in the Fourth R&D Programme on the Environment of the Commission of the European Communities expiring at the end of 1990. After restructuring the Concerted Action in 1984, particular attention has been devoted to fate and transformation of organic micropollutants in the aquatic environment. Therefore, a major aim of the Symposium was to review current studies and progress in these areas, besides more general aspects related to analytical methodologies and behaviour of pollutants during water treatment processes. This volume contains the plenary papers presented in the following sessions at the Symposium: - Multidisciplinary studies - Partitioning of organic micropollutants in the aquatic environment - Novel analytical techniques in environmental chemistry - Monitoring micropollutant - Degradation of organic micropollutants during field conditions - Reclamation of polluted ground water - Chemical and photochemical oxidation - Future of environmental chemistry. In addition, extended versions of posters are included, covering the four topics which are dealt within the four Working Parties forming the structure of the Concerted Action: 1. Analytical methodologies 2. Transport and distribution 3. Transformation reactions 4. Water treatment. We believe that the Proceedings give a good overview of current activities in these fields of research in Europe.

Progress in the Chemistry of Organic Natural Products

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3709168872
Total Pages : 508 pages
Book Rating : 4.7/5 (91 download)

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Book Synopsis Progress in the Chemistry of Organic Natural Products by :

Download or read book Progress in the Chemistry of Organic Natural Products written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this ASI was to bring together specialists in several complex variables (many of whom have contributed to complex potential theory) and specialists in potential theory (all of whom have contributed to several complex variables) together with young researchers and graduate students for an interchange of ideas and techniques. Not only was the status of current research presented, but also the relevant background, much of which is not yet available in books. The following topics and interconnections among them were discussed: 1. Real and Complex Potential Theory. Capacity and approximation, basic prop erties of plurisubharmonic functions and methods to manipulate their singularities and study their growth, Green functions, Chebyshev-type quadratures, electrostatic fields and potentials, propagation of smallness. 2. Complex Dynamics. Review of complex dynamics in one variable, Julia sets, Fatou sets, background in several variables, Henon maps, ergodicity, use of potential theory and multifunctions. 3. Banach Algebras and Infinite Dimensional Holomorphy. Analytic multi functions, spectral theory, analytic functions on a Banach space, semigroups of holomor phic isometries, Pick interpolation on uniform algebras and Von Neumann inequalities for operators on a Hilbert space. The basic notion of complex potential theory is that of a plurisubharmonic function.

Natural Production of Organohalogen Compounds

Author : Gordon W. Gribble
Publisher : Springer
ISBN 13 : 9783540418429
Total Pages : 314 pages
Book Rating : 4.4/5 (184 download)

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Book Synopsis Natural Production of Organohalogen Compounds by : Gordon W. Gribble

Download or read book Natural Production of Organohalogen Compounds written by Gordon W. Gribble and published by Springer. This book was released on 2003-04-30 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the state-of-the-art knowledge on naturally occurring organohalogens, of which more than 3700 are documented. The chapters cover all aspects of this field, including the structural diversity and sources of organohalogens, the mechanisms for their formation and biodegradation, the clinical use of dichloroacetate, and the synthesis of the powerful anticancer chlorine-containing cryptophycin. Both biogenic and abiogenic sources of organohalogens are treated, the latter of which include volcanic emissions and abiogenic formation in soil. Halogenation in humans, fungi, and in the ocean are covered in separate chapters. Sources and biosynthesis of the relatively rare natural organofluorines are also discussed in this volume. By better understanding of the role nature plays in the area of organohalogens, we can more intelligently regulate the production, use, and disposal of man-made organohalogen compounds.

Progress in the Chemistry of Organic Natural Products

Author :
Publisher : Springer
ISBN 13 : 9783709174562
Total Pages : 317 pages
Book Rating : 4.1/5 (745 download)

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Book Synopsis Progress in the Chemistry of Organic Natural Products by :

Download or read book Progress in the Chemistry of Organic Natural Products written by and published by Springer. This book was released on 2011-10-01 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volumes of this classic series, now referred to simply as "Zechmeister" after its founder, L. Zechmeister, have appeared under the Springer imprint ever since the series was founded in 1938. The volumes contain contributions on various topics related to the origin, distribution, chemistry, synthesis, biochemistry, function or use of various classes of naturally occurring substances ranging from small molecules to biopolymers. Each contribution is written by a recognized authority in his field and provides a comprehensive and up-to-date review of the topic in question. Addressed to biologists, technologists and chemists alike, the series can be used by the expert as a source of information and literature citations and by the non-expert as a means of orientation in a rapidly developing discipline.

Environmental Inorganic Chemistry for Engineers

Author : James G. Speight
Publisher : Butterworth-Heinemann
ISBN 13 : 0128011424
Total Pages : 594 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Environmental Inorganic Chemistry for Engineers by : James G. Speight

Download or read book Environmental Inorganic Chemistry for Engineers written by James G. Speight and published by Butterworth-Heinemann. This book was released on 2017-05-10 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Inorganic Chemistry for Engineers explains the principles of inorganic contaminant behavior, also applying these principles to explore available remediation technologies, and providing the design, operation, and advantages or disadvantages of the various remediation technologies. Written for environmental engineers and researchers, this reference provides the tools and methods that are imperative to protect and improve the environment. The book's three-part treatment starts with a clear and rigorous exposition of metals, including topics such as preparations, structures and bonding, reactions and properties, and complex formation and sequestering. This coverage is followed by a self-contained section concerning complex formation, sequestering, and organometallics, including hydrides and carbonyls. Part Two, Non-Metals, provides an overview of chemical periodicity and the fundamentals of their structure and properties. Clearly explains the principles of inorganic contaminant behavior in order to explore available remediation technologies Provides the design, operation, and advantages or disadvantages of the various remediation technologies Presents a clear exposition of metals, including topics such as preparations, structures, and bonding, reaction and properties, and complex formation and sequestering

Dehalogenation

Author : Max M. Häggblom
Publisher : Springer Science & Business Media
ISBN 13 : 0306480115
Total Pages : 702 pages
Book Rating : 4.3/5 (64 download)

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Book Synopsis Dehalogenation by : Max M. Häggblom

Download or read book Dehalogenation written by Max M. Häggblom and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Halogenated organic compounds constitute one of the largest groups of environmental chemicals. The industrial production of new halogenated organic compounds has increased throughout the last century peaking in the 1960s, and continuing in widespread use today. Organohalides are integral to a variety of industrial applications, including use as solvents, degreasing agents, biocides, pharmaceuticals, plasticizers, hydraulic and heat transfer fluids, and intermediates for chemical synthesis, to name a few. It is important to recognize the beneficial aspects of halogenated organic compounds, as well as their potentially deleterious impact on the environment and health. Recognition ofthe adverse environmental effects ofmanytypes oforganohalide compounds has led to efforts to reduce or eliminate the most problematic ones. Although organohalide compounds are typically considered to be anthropogenic industrial compounds, they have their counterpart in several thousands of natural biogenic and geogenic organohalides, representing most classes of organic chemicals. Natural sources account for a significant portion of the global organohalogen budget. This volume authored by recognized experts in the field provides a current perspective on how both natural and synthetic organohalides are formed and degraded, and how these processes are incorporated into a global halogen cycle. The focus is on microbial processes, since these play a major role both in the production and degradation, i. e. , cycling of halogenated organic compounds inthe environment. This book is organized into five parts. Part I, Introduction, provides a global perspective on the issues of organohalides and their fate in the environment.

Chlorine and the Environment

Author : Ruth Stringer
Publisher : Springer Science & Business Media
ISBN 13 : 9401598134
Total Pages : 456 pages
Book Rating : 4.4/5 (15 download)

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Book Synopsis Chlorine and the Environment by : Ruth Stringer

Download or read book Chlorine and the Environment written by Ruth Stringer and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to examine comprehensively the chlorine industry and its effects on the environment. It covers not only the history of chlorine production, but also looks at its products, their effects on the global environment, and the international legislation which controls their use, release, and disposal. Individual chapters are dedicated to subjects such as releases of organochlorines into the environment, and the environmental impact of ozone depletion, providing simple explanations of these complex issues. These are backed up with case studies of landmark events in the history of the chlorine industry - for example the Seveso explosion or the Yusho and Yu-Cheng mass poisonings. With a clear, concise text and numerous compilations of critical data, this book will prove an invaluable source reference for environmental scientists, students, and policy makers with an interest in this subject.

Environmental Organic Chemistry

Author : René P. Schwarzenbach
Publisher : John Wiley & Sons
ISBN 13 : 0471743992
Total Pages : 1329 pages
Book Rating : 4.4/5 (717 download)

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Book Synopsis Environmental Organic Chemistry by : René P. Schwarzenbach

Download or read book Environmental Organic Chemistry written by René P. Schwarzenbach and published by John Wiley & Sons. This book was released on 2005-06-24 with total page 1329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Organic Chemistry focuses on environmental factors that govern the processes that determine the fate of organic chemicals in natural and engineered systems. The information discovered is then applied to quantitatively assessing the environmental behaviour of organic chemicals. Now in its 2nd edition this book takes a more holistic view on physical-chemical properties of organic compounds. It includes new topics that address aspects of gas/solid partitioning, bioaccumulation, and transformations in the atmosphere. Structures chapters into basic and sophisticated sections Contains illustrative examples, problems and case studies Examines the fundamental aspects of organic, physical and inorganic chemistry - applied to environmentally relevant problems Addresses problems and case studies in one volume

Chlorine and Chlorine Compounds in the Paper Industry

Author : Victor Turoski
Publisher : CRC Press
ISBN 13 : 9781575040660
Total Pages : 414 pages
Book Rating : 4.0/5 (46 download)

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Book Synopsis Chlorine and Chlorine Compounds in the Paper Industry by : Victor Turoski

Download or read book Chlorine and Chlorine Compounds in the Paper Industry written by Victor Turoski and published by CRC Press. This book was released on 1997-09-01 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook provides essential information on toxicology, risk assessment, analysis, monitoring, human and ecological effects, treatment alternatives, ecosystem health, compliance, and much more.

Chlorine Cycling in Terrestrial Environments

Author : Malin Montelius
Publisher : Linköping University Electronic Press
ISBN 13 : 9176858138
Total Pages : 62 pages
Book Rating : 4.1/5 (768 download)

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Book Synopsis Chlorine Cycling in Terrestrial Environments by : Malin Montelius

Download or read book Chlorine Cycling in Terrestrial Environments written by Malin Montelius and published by Linköping University Electronic Press. This book was released on 2016-03-08 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chlorinated organic compounds (Clorg) are produced naturally in soil. Formation and degradation of Clorg affect the chlorine (Cl) cycling in terrestrial environments and chlorine can be retained or released from soil. Cl is known to have the same behaviour as radioactive chlorine-36 (36Cl), a long-lived radioisotope with a half-life of 300,000 years. 36Cl attracts interest because of its presence in radioactive waste, making 36Cl a potential risk for humans and animals due to possible biological uptake. This thesis studies the distribution and cycling of chloride (Cl–) and Clorg in terrestrial environments by using laboratory controlled soil incubation studies and a forest field study. The results show higher amounts of Cl– and Clorg and higher chlorination rates in coniferous forest soils than in pasture and agricultural soils. Tree species is the most important factor regulating Cl– and Clorg levels, whereas geographical location, atmospheric deposition, and soil type are less important. The root zone was the most active site of the chlorination process. Moreover, this thesis confirms that bulk Clorg dechlorination rates are similar to, or higher than, chlorination rates and that there are at least two major Clorg pools, one being dechlorinated quickly and one remarkably slower. While chlorination rates were negatively influenced by nitrogen additions, dechlorination rates, seem unaffected by nitrogen. The results implicate that Cl cycling is highly active in soils and Cl– and Clorg levels result from a dynamic equilibrium between chlorination and dechlorination. Influence of tree species and the rapid and slow cycling of some Cl pools, are critical to consider in studies of Cl in terrestrial environments. This information can be used to better understand Cl in risk-assessment modelling including inorganic and organic 36Cl. Klorerade organiska föreningar (Clorg) bildas naturligt i mark och påverkar klorets kretslopp genom att de stannar kvar längre i marken. Detta stabila klor anses ha samma egenskaper som klor-36, som är en långlivad radioisotop med en halveringstid på 300 000 år. Klor-36 förekommer i olika typer av radioaktivt avfall och om klor-36 sprids i naturen finns det en potentiell risk för människor och djur genom biologiskt upptag. Syftet i denna avhandling är att öka kunskapen om fördelningen och cirkulationen av klorid (Cl-) och Clorg i terrestra miljöer med hjälp av studier i laboratoriemiljö samt en fältstudie i skogsmiljö. Resultaten visar att bildningshastigheten av Clorg är högst i barrskogsjord och rotzonen tycks vara en aktiv plats. Det finns också en större mängd Cl- och Clorg i barrskogsjordar än i betesmark och jordbruksmark. Den mest betydande faktorn som styr halterna av Cl- och Clorg är trädsort, medan geografiskt läge, atmosfäriskt nedfall, och jordmån är av mindre betydelse. Bildning och nedbrytning av Clorg sker med liknande hastigheter, men det tycks finnas två förråd av Clorg i jorden varav ett bryts ner snabbt och ett mer långsamt. Bildningshastigheten av Clorg är lägre i jordar med höga halter av kväve medan nedbrytningshastigheterna inte påverkas av kväve. Slutsatsen från studiernas resultat är att klor i hög grad är aktivt i mark och att Cl- och Clorg halterna bestäms av en dynamisk jämvikt mellan bildning och nedbrytning av Clorg. I studier av klor i terrestra miljöer bör trädsorters inverkan och nedbrytning av olika klorförråd beaktas då det kan ge varierande uppehållstider av Cl- och Clorg i mark. Denna information är viktig vid riskbedömningar av hur radioaktivt klor kan spridas och cirkulera vid en eventuell kärnkraftsolycka.