Volatile Organic Compounds In The Atmosphere
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| Author | : Ralf Koppmann |
| Publisher | : John Wiley & Sons |
| Total Pages | : 512 |
| Release | : 2008-04-15 |
| Genre | : Science |
| ISBN | : 0470994150 |
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.
| Author | : Ralf Koppmann |
| Publisher | : Wiley-Blackwell |
| Total Pages | : 512 |
| Release | : 2007-07-10 |
| Genre | : Science |
| ISBN | : 1405131152 |
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.
| Author | : R M Harrison |
| Publisher | : Royal Society of Chemistry |
| Total Pages | : 156 |
| Release | : 2007-10-31 |
| Genre | : Science |
| ISBN | : 1847552315 |
Interest in volatile organic compounds (VOCs) as air pollutants has increased dramatically in recent years. This book covers a number of very topical issues concerning VOCs, including stratospheric ozone depletion due to CFCs, and the properties of alternative substances; the role of VOCs in the photochemical formation of lower atmosphere (tropospheric) ozone; and the problem of the direct toxicity of VOCs such as benzene and formaldehyde. This Issue reviews our current knowledge of VOCs, drawing upon the expertise of renowned experts and major national and international research programmes. It examines man-made and natural sources, as well as pathways and chemical reactions in the atmosphere. It also looks closely at the sources and concentrations of VOCs indoors, where humans are most likely to be exposed to them. Volatile Organic Compounds in the Atmosphere describes techniques used for the calculation of emissions inventories and strategies for control, and explores the many Government policy matters relating to VOCs. It provides readers with in-depth, clearly explained coverage of the many complex scientific and policy issues surrounding VOCs in the atmosphere.
| Author | : Khaled Chetehouna |
| Publisher | : Nova Science Publishers |
| Total Pages | : 0 |
| Release | : 2014 |
| Genre | : Pollution |
| ISBN | : 9781631178627 |
Volatile Organic Compounds (VOCs) have anthropogenic and biogenic origins. At the Earth's scale, the natural sources represent a great part of the total VOCs present in the atmosphere but in industrialised regions, anthropogenic ones become the majority due to the various human activities related mainly to chemical industries (liquid fuels, solvents, thinners, detergents, degreasers, cleaners and lubricants). Almost all VOCs have effects on human health and many of them are even carcinogenic. It is also known that the VOCs can affect the central nervous system and may have mutagenic effects. Apart from human health, they also play an important role towards the environment, especially in the atmospheric pollution processes. Indeed, VOCs emissions lead to the promotion of photochemical reactions in the atmosphere (ozone formation, depletion of the stratospheric ozone layer and formation of photochemical smog). The present book gathers and presents some current research from across the world conducted by scientific experts in their fields. In seven valuable contributions, it deals with the emission and the environmental impact as well as the control of the Volatile Organic Compounds.
| Author | : C. Nicholas Hewitt |
| Publisher | : Elsevier |
| Total Pages | : 335 |
| Release | : 1998-10-20 |
| Genre | : Science |
| ISBN | : 0080540309 |
The vast family of volatile organic compounds plays a central role in the chemistry of the Earth's atmosphere. Reactive Hydrocarbons in the Atmosphere provides comprehensive and up-to-date reviews covering all aspects of the behavior, sources, occurrence, and chemistry of these compounds. The book considers both biogenic and anthropogenic sources, plus their effects in the atmosphere at local, regional, and global scales. - Covers a major component of atmospheric chemistry and air pollution - Considers both natural background chemistry and pollution processes - Provides authoritative reviews for a wide range of audiences
| Author | : National Research Council |
| Publisher | : National Academies Press |
| Total Pages | : 525 |
| Release | : 1992-02-01 |
| Genre | : Science |
| ISBN | : 0309046319 |
Despite more than 20 years of regulatory efforts, concern is widespread that ozone pollution in the lower atmosphere, or troposphere, threatens the health of humans, animals, and vegetation. This book discusses how scientific information can be used to develop more effective regulations to control ozone. Rethinking the Ozone Problem in Urban and Regional Air Pollution discusses: The latest data and analysis on how tropospheric ozone is formed. How well our measurement techniques are functioning. Deficiencies in efforts to date to control the problem. Approaches to reducing ozone precursor emissions that hold the most promise. What additional research is needed. With a wealth of technical information, the book discusses atmospheric chemistry, the role of oxides of nitrogen (NOx) and volatile organic compounds (VOCs) in ozone formation, monitoring and modeling the formation and transport processes, and the potential contribution of alternative fuels to solving the tropospheric ozone problem. The committee discusses criteria for designing more effective ozone control efforts. Because of its direct bearing on decisions to be made under the Clean Air Act, this book should be of great interest to environmental advocates, industry, and the regulatory community as well as scientists, faculty, and students.
| Author | : Peter Warneck |
| Publisher | : Elsevier |
| Total Pages | : 947 |
| Release | : 1999-10-29 |
| Genre | : Science |
| ISBN | : 0080529062 |
Knowledge of thc chemical behavior of trace compounds in the atmosphere has grown steadily, and sometimes even spectacularly, in recent decades. These developments have led to the emergence of atmospheric chemistry as a new branch of science. This book covers all aspects of atmospheric chemistry on a global scale, integrating information from chemistry and geochemistry, physics, and biology to provide a unified account. For each atmospheric constituent of interest, the text summarizes the principal observations on global distribution, chemical reactions, natural and anthropogenic sources, and physical removal processes. Coverage includes processes in the gas phase, in aerosols and c1ouds, and in precipitation, as well as biogeochemical cycles and the evolution of the atmosphere. Chemistry of the Natural Atmosphere, Second Edition, will serve as a textbook for senior undergraduate and graduate courses, and as an essential reference for atmospheric chemists, meteorologists, and anyone studying the biogeochemical cycles of trace gases.* Updated extensively from the highly respected first edition * Treats the global-scale chemistry and distribution of atmospheric trace constituents * Emphasizes observations and their interpretation* Provides background on transport and reaction kinetics for interpretation of observational data* Includes chemistry in the gas phase and in aerosols and clouds* Details chemical reaction pathways for the most important trace constituents* Describes pertinent biogeochemical cycles* Written by an author with more than 40 years of research experience in atmospheric chemistry
| Author | : |
| Publisher | : |
| Total Pages | : 72 |
| Release | : 1997 |
| Genre | : Science |
| ISBN | : |
Defines in non-technical language the more commonly used environmental terms appearing in EPA pub's., news releases, & other Agency documents. The definitions do not constitute the Agency's official use of terms for regulatory purposes; official terminology may be found in the laws & related regulations as published in such sources as the Congressional Record, Federal Register, & elsewhere. These terms are derived from previously published lists, internal glossaries produced by various programs & specific suggestions made by personnel in many Agency offices. The chemicals & pesticides selected for inclusion are limited to those most frequently referred to in Agency pub's. or that are the subject of major regulatory or program activities.
| Author | : |
| Publisher | : World Health Organization |
| Total Pages | : 488 |
| Release | : 2010 |
| Genre | : House & Home |
| ISBN | : |
This book presents WHO guidelines for the protection of public health from risks due to a number of chemicals commonly present in indoor air. The substances considered in this review, i.e. benzene, carbon monoxide, formaldehyde, naphthalene, nitrogen dioxide, polycyclic aromatic hydrocarbons (especially benzo[a]pyrene), radon, trichloroethylene and tetrachloroethylene, have indoor sources, are known in respect of their hazardousness to health and are often found indoors in concentrations of health concern. The guidelines are targeted at public health professionals involved in preventing health risks of environmental exposures, as well as specialists and authorities involved in the design and use of buildings, indoor materials and products. They provide a scientific basis for legally enforceable standards.
| Author | : National Research Council |
| Publisher | : National Academies Press |
| Total Pages | : 270 |
| Release | : 1999-09-23 |
| Genre | : Science |
| ISBN | : 0309064457 |
The Committee on Ozone-Forming Potential for Reformulated Gasoline was asked whether the existing body of scientific and technical information is sufficient to permit a robust evaluation and comparison of the emissions from motor vehicles using different reformulated gasolines based on their ozone-forming potentials and to assess the concomitant impact of that approach on air-quality benefits of the use of oxygenates within the RFG program. As part of its charge, the committee was asked to consider (1) the technical soundness of various approaches for evaluating and comparing the relative ozone-forming potentials of RFG blends, (2) technical aspects of various air-quality issues related to RFG assessment, and (3) the sensitivity of evaluations of the relative ozone-forming potentials to factors related to fuel properties and the variability of vehicle technologies and driving patterns.
