Download or read book Reactive Halogen Compounds in the Atmosphere written by Peter Fabian and published by Springer Science & Business Media. This book was released on 1999-04-09 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts

Download or read book Volatile Organic Compounds in the Atmosphere written by Ralf Koppmann and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every day, large quantities of volatile organic compounds (VOCs) are emitted into the atmosphere from both anthropogenic and natural sources. The formation of gaseous and particulate secondary products caused by oxidation of VOCs is one of the largest unknowns in the quantitative prediction of the earth’s climate on a regional and global scale, and on the understanding of local air quality. To be able to model and control their impact, it is essential to understand the sources of VOCs, their distribution in the atmosphere and the chemical transformations which remove these compounds from the atmosphere. In recent years techniques for the analysis of organic compounds in the atmosphere have been developed to increase the spectrum of detectable compounds and their detection limits. New methods have been introduced to increase the time resolution of those measurements and to resolve more complex mixtures of organic compounds. Volatile Organic Compounds in the Atmosphere describes the current state of knowledge of the chemistry of VOCs as well as the methods and techniques to analyse gaseous and particulate organic compounds in the atmosphere. The aim is to provide an authoritative review to address the needs of both graduate students and active researchers in the field of atmospheric chemistry research.

Download or read book Ocean Atmosphere Interactions of Gases and Particles written by Peter S. Liss and published by Springer. This book was released on 2013-12-18 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oceans and atmosphere interact through various processes, including the transfer of momentum, heat, gases and particles. In this book leading international experts come together to provide a state-of-the-art account of these exchanges and their role in the Earth-system, with particular focus on gases and particles. Chapters in the book cover: i) the ocean-atmosphere exchange of short-lived trace gases; ii) mechanisms and models of interfacial exchange (including transfer velocity parameterisations); iii) ocean-atmosphere exchange of the greenhouse gases carbon dioxide, methane and nitrous oxide; iv) ocean atmosphere exchange of particles and v) current and future data collection and synthesis efforts. The scope of the book extends to the biogeochemical responses to emitted / deposited material and interactions and feedbacks in the wider Earth-system context. This work constitutes a highly detailed synthesis and reference; of interest to higher-level university students (Masters, PhD) and researchers in ocean-atmosphere interactions and related fields (Earth-system science, marine / atmospheric biogeochemistry / climate). Production of this book was supported and funded by the EU COST Action 735 and coordinated by the International SOLAS (Surface Ocean- Lower Atmosphere Study) project office.

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.

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.

Download or read book Halogens and Noble Gases Second Edition written by Monica Halka and published by Infobase Holdings, Inc. This book was released on 2019-12-01 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: In spite of their adjacency in the periodic table, halogens and nonmetals have very different properties. Halogens are among the most chemically reactive elements in the periodic table, exhibiting a diverse chemistry in terms of the large numbers of compounds they can form. On the other hand, noble gases are the least chemically reactive elements. In fact, before the 1960s, chemists referred to these elements as inert gases, because it was believed that they exhibited no chemistry whatsoever. Providing the basics of these elements, including their role in history and some of the important scientists involved in their discovery, this newly updated, full-color resource features up-to-date scientific understanding in a clear and accessible format. Halogens and Noble Gases, Second Edition examines the ways humans use halogens and noble gases and the resulting benefits and challenges to society, health, and the environment. Fluorine, chlorine, bromine, iodine, helium, and krypton are covered in this eBook, along with the fundamentals of chemistry and physics as well as possible future developments in halogen and noble gas science and its applications.

Download or read book Mercury Fate and Transport in the Global Atmosphere written by Nicola Pirrone and published by Springer Science & Business Media. This book was released on 2009-06-15 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mercury, primarily because of its existence and bioaccumulation as methylmercury in aquatic organisms, is a concern for the health of higher trophic level organisms, or to their consumers. This is the major factor driving current research in mercury globally and in environmental regulation, and is the driver for the current UNEP Global Partnership for Mercury Transport and Fate Research (UNEP F&T) initiative. The overall focus of the UNEP F&T report is to assess the relative importance of different processes/mechanisms affecting the transfer of mercury (Hg) from emission sources to aquatic and terrestrial receptors and provide possible source-receptor relationships. This transfer occurs through atmospheric transport, chemical transformations and subsequent deposition, and involves the intermittent recycling between reservoirs that occurs prior to ultimate removal of Hg from the atmosphere. Understanding the sources, the global Hg transport and fate, and the impact of human activity on the biosphere, requires improved knowledge of Hg movement and transformation in the atmosphere. An improved understanding of Hg emission sources, fate and transport is important if there is to be a focused and concerted effort to set priorities and goals for Hg emission management and reduction at the national, regional and global levels; and to develop and implement such policies and strategies. To achieve this, a series of coordinated scientific endeavors focused on the estimation of sources, measurement and validation of concentrations and processes, and modeling, coupled with interpretation of the results within a policy framework, is likely to be required.

Download or read book Organic Bromine and Iodine Compounds written by Alasdair H. Neilson and published by Springer Science & Business Media. This book was released on 2003-10-09 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses a broad spectrum of the environmental issues surrounding organic bromine and iodine compounds. It covers their partition among the environmental compartments and the potential for their long-range dissemination. The important issue of their atmospheric chemistry is discussed in detail in the context of ozone depletion and global warming, and the significant difference between the reactions of methyl bromide and methyl iodide are underscored. The mammalian toxicity is discussed and the mechanisms of the degradation and transformation of organic bromine and iodine compounds addressed. There has been considerable interest in naturally occurring metabolites in the current debate on the fate and partition of methyl bromide that is an important fungicide and is produced in substantial quantities as a metabolite of marine algae. The possible natural occurrence of diphenyl ethers that are used as flame retardants have also been raised. A discussion is given on plausible mechanisms for the biosynthesis of representative organic bromine and organic iodine metabolites. Reaction pathways are illustrated throughout and comprehensive references are given.

Download or read book Chemistry and Radiation Changes in the Ozone Layer written by Christos S. Zerefos and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies have demonstrated a link between ozone changes caused by human activities and changing UV levels at the Earth's surface, as well as a link to climate through changes in radiative forcing and links to changes in chemical composition. This book draws together key scientists who provide state of the art contributions on the variable ozone layer and the interplay of longwave and shortwave radiative interactions which link ozone, the climate and UV issues.

Download or read book Atmospheric Chemistry and Physics written by John H. Seinfeld and published by John Wiley & Sons. This book was released on 2016-04-04 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanded and updated with new findings and new features New chapter on Global Climate providing a self-contained treatment of climate forcing, feedbacks, and climate sensitivity New chapter on Atmospheric Organic Aerosols and new treatment of the statistical method of Positive Matrix Factorization Updated treatments of physical meteorology, atmospheric nucleation, aerosol-cloud relationships, chemistry of biogenic hydrocarbons Each topic developed from the fundamental science to the point of application to real-world problems New problems at an introductory level to aid in classroom teaching

Download or read book Safeguarding the Ozone Layer and the Global Climate System written by Intergovernmental Panel on Climate Change and published by Cambridge University Press. This book was released on 2005-10-24 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher Description

Download or read book Chemistry of the Climate System written by Detlev Möller and published by Walter de Gruyter GmbH & Co KG. This book was released on 2014-09-10 with total page 925 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is a major challenge facing the modern world. The chemistry of air and it's influence on the climate system forms the main focus of this monograph. The book presents a problem-based approach to presenting global atmospheric processes, evaluating the effects of changing air composition as well as possibilities for interference within these processes and indicates ways for solving the problem of climate change through chemistry. The new edition includes innovations and latest research results.

Download or read book Chemistry for Environmental Scientists written by Detlev Möller and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-06-21 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this book presents the fundamentals of chemistry in light of their importance for the environment and environmental processes. The new edition includes updated references and a more practical approach to the topic. The comprehensive discussion is structured in three parts: introducing the theory of physical chemistry, evaluating elements and compounds, and presenting principles of environmental chemistry.

Download or read book Atmospheric Chemistry in a Changing World written by Guy P. Brasseur and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praise for Guy P. Brasseur's Atmospheric Chemistry in a Changing World American Meteorological Society "This volume summarizes and integrates more than a decade of atmospheric chemistry research. During the period under consideration, great progress has been made in computing, modeling, and observational techniques, and methods have also improved. Here, suggestions for the highest priority research for the next decade are made, and important information is related regarding impacts on the environment."

Download or read book Global Atmospheric Change and its Impact on Regional Air Quality written by Ian Barnes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NATO ARW in Irkutsk was an excellent occasion for the coming together of Eastern and Western scientists who are involved in tropospheric science; the workshop has greatly contributed to the scientific and social understanding among the participants from the many different countries. Many new personal contacts were made which will help to strengthen future collaborations. In particular, the Lake Baikal area and the Limnological Institute offer splendid opportunities for environmental research which, in part, is already on going. For most participants it was the first time to see the impressive nature of the Lake Baikal region. Hopefully, there will be a chance for a follow-up event in Siberia where researchers from the East and West can again meet and engage in fruitful scientific dialogue. The book contains extended abstracts of the lectures and the poster presentations presented at the NATO ARW "Global Atmospheric Change and its Impact on Regional Air Quality" Irkutsk, Lake Baikal, Russian Federation, August 21-27, 2001. The ARW was composed of 22 oral presentations by key lecturers and 6 additional shorter oral presentations from participants. In a special poster session the 36 poster contributions were presented and discussed. Unfortunately not all contributors submitted extended abstracts, however, to compensate two contributions have been added from 2 participants who were originally invited but were unable to attend.

Download or read book Fundamentals and Processes written by Detlev Möller and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-02-19 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is a major challenge facing modern society. The chemistry of air and its influence on the climate system forms the main focus of this book. Vol. 1 of Chemistry of the Climate System provides the reader with a physicochemical understanding of atmospheric processes. The chemical substances and reactions found in the Earth’s atmosphere are presented along with their influence on the global climate system.

Download or read book Environmental Chemistry and Its Applications for the pollution Abatement written by Dr. Azad Kumar and published by Blue Hill Publications. This book was released on 2022-11-06 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, we have selected the 19 research and review articles for publication. The chapters in this book reflect a wide range of fundamental and applied research in the chemical sciences, environmental science and interdisciplinary subjects. This book is a unique collection of full research papers as well as reviews. In the 1st chapter, describes advances of aviation fuel derived from renewable sources is a “DROP-IN” alternative for air transport as it has a similar high energy density and meets all the required fuel specifications. Major challenges faced by the industry with respect to the development of alternative aviation fuel are - high quality standards requirements, safety issues, wide range of operational conditions and drop-in kind with traditional aviation jet fuel. In the 2nd chapter, To describes significant optical features of luminescent materials have drawn immense appreciation in all walks of life including organic dyes, metal-organic frameworks, lanthanide compounds, semiconductor-based quantum dots, and carbon-based nanodots, which attribute numerous applications to these Luminescent materials. Moreover, they have been proven important in various applications, including gas storage and separation, heterogeneous catalysis, light-harvesting, chemical sensing, bio-imaging, and drug delivery. In the 3rd chapter, describes introduction of mixed ligand dithiolate complexes of cobalt, synthesis of mixed ligand complexes of cobalt (II) with dithiolate (1-methoxy carbonyl –1- cyano ethylene -2,2- dithiolate) and nitrogen donors. In the 4th chapter, Mixed ligand complexes of the type [Ni(L)n(dithio)] n=1 or 2 L= OPD, and various substituted pyridines, dithio=(NaS)2C=C(CN) COOMe.H2O have been synthesized and characterized. In the 5th chapter, discussed about conducting polymers (CPs) are chemical compounds or mixtures of compounds composed of structural units formed during the polymerization process. The prospective uses of CPs, particularly in the realm of electronic manufacturing, have piqued the curiosity of researchers. In the 6th chapter, BiOCl nanomaterial have been acknowledged as potential and promising environmental remediation material because of their low costs, low toxicities, and enormous stabilities as well as resourceful photocatalytic activities of various hazardous environmental pollutants including dyes, pesticides and several other organic pollutants etc. In the 7th chapter, discuss about polyaniline (PANI) which is reviewed as environmental remediation. In the 8th chapter, describe a the low cost activated carbon based adsorbent derived from the fruit of Kigelia Africana (KA), was characterized for effective removal of Pb (II) from its aqueous solution and determine the rate of adsorption. In the 9th chapter, discuss about Ionic liquid which has emerged as intriguing modern material in science and technology. To better comprehend and investigate the unusual and fascinating characteristics of ionic liquids. In the 10th chapter, to prepare the nanocomposites of Titania by solution impregnation method and used as photocatalyst for the degradation of acetic acid at various factors. In the 11th chapter, discuss about health and socioeconomic conditions which are inextricably linked. A substantial beneficial influence on economic success is ensured by the general population's well health. Cardiovascular complexity is the single most serious health problem in India. Hypertension is a key risk factor for cardiovascular disease. In the 12th chapter, discuss about waste management. There is need for framing policies for effective management of waste and above all implementation of them by the authority and adherence to them by the general public. In the 13th chapter highlights the potential of Hierarchical Nanostructured 3D Flowerlike BiOX (X=Cl, Br, I) microsphere as a remarkable technology towards the environmental remediation processes of various hazardous and persistent environmental pollutants. In the 14th chapter, to prepared the nanoparticles of zirconium oxide and characterized them by the some characterization techniques. In the 15th chapter, discuss about waste management which involves the procedures and actions necessary to manage waste from generation to disposal. This covers waste collection, transportation, treatment, and disposal, as well as waste management process monitoring and control, as well as waste-related legislation, technology, and economic processes. In the 16th chapter, discuss about the role of probiotic milk in human health. The numerous perceived health benefits and the growing awareness about probiotics have caught the attention of the food industry. Food companies are increasingly manufacturing foods with incorporated probiotic bacteria, which fall under the new category of foods called Functional Foods. In the 17th chapter, discuss the recent trend and modification in TiO2 nanostructured based super hydrophobic surfaces of different type of materials. Further the application potential of the artificial super hydrophobic surfaces such as self-cleaning; water/oil separation and anti-fogging etc. In the 18th chapter, reviews the iron polyphenols interaction which cause to the colour formation during the sugar processing. The chemical structure of various phenolic acid which presents in sugar cane juice are interact with the Fe(III) through chemical reaction or by changing conditions which results in the various colourant formation during sugar formation are described. In the 19th chapter, discuss about carbon footprint which is used to calculate the individual carbon emission which includes to the atmosphere every day. in the recent years causes lots of carbon emission and in turn increase the global warming, which is harmful to the present, and future of the earth and its living beings.