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Chemistry Of Secondary Organic Aerosol Formation From Reactions Of Alkenes With Ozone And Nitrate Radicals
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Book Synopsis Chemistry of Secondary Organic Aerosol Formation from Reactions of Alkenes with Ozone and Nitrate Radicals by : Huiming Gong
Download or read book Chemistry of Secondary Organic Aerosol Formation from Reactions of Alkenes with Ozone and Nitrate Radicals written by Huiming Gong and published by . This book was released on 2003 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atmospheric Multiphase Chemistry by : Hajime Akimoto
Download or read book Atmospheric Multiphase Chemistry written by Hajime Akimoto and published by John Wiley & Sons. This book was released on 2020-04-01 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important guide that highlights the multiphase chemical processes for students and professionals who want to learn more about aerosol chemistry Atmospheric Multiphase Reaction Chemistry provides the information and knowledge of multiphase chemical processes and offers a review of the fundamentals on gas-liquid equilibrium, gas phase reactions, bulk aqueous phase reactions, and gas-particle interface reactions related to formation of secondary aerosols. The authors—noted experts on the topic—also describe new particle formation, and cloud condensation nuclei activity. In addition, the text includes descriptions of field observations on secondary aerosols and PM2.5. Atmospheric aerosols play a critical role in air quality and climate change. There is growing evidence that the multiphase reactions involving heterogeneous reactions on the air-particle interface and the reactions in the bulk liquid phase of wet aerosol and cloud/fog droplets are important processes forming secondary aerosols in addition to gas-phase oxidation reactions to form low-volatile compounds. Comprehensive in scope, the book offers an understanding of the topic by providing a historical overview of secondary aerosols, the fundamentals of multiphase reactions, gas-phase reactions of volatile organic compounds, aqueous phase and air-particle interface reactions of organic compound. This important text: Provides knowledge on multiphase chemical processes for graduate students and research scientists Includes fundamentals on gas-liquid equilibrium, gas phase reactions, bulk aqueous phase reactions, and gas-particle interface reactions related to formation of secondary aerosols Covers in detail reaction chemistry of secondary organic aerosols Written for students and research scientists in atmospheric chemistry and aerosol science of environmental engineering, Atmospheric Multiphase Reaction Chemistry offers an essential guide to the fundamentals of multiphase chemical processes.
Book Synopsis Chemical and Physical Characterization of Secondary Organic Aerosol Formation from Select Agricultural Emissions by : Quentin Gerald James Malloy
Download or read book Chemical and Physical Characterization of Secondary Organic Aerosol Formation from Select Agricultural Emissions written by Quentin Gerald James Malloy and published by . This book was released on 2009 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Secondary Organic Aerosol Formation from Radical-initiated Reactions of Alkenes by : Aiko Matsunaga
Download or read book Secondary Organic Aerosol Formation from Radical-initiated Reactions of Alkenes written by Aiko Matsunaga and published by . This book was released on 2009 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: The products and mechanisms of secondary organic aerosol (SOA) formation from reactions of 1-alkenes, internal alkenes, and 2-methyl-1-alkenes with OH radicals in the presence of NO[subscript x] were investigated in an environmental chamber and the results used to develop quantitative models for SOA formation. Aerosol chemical composition was analyzed using a thermal desorption particle beam mass spectrometer (TDPBMS), and multifunctional organic nitrate products were quantified using a high-performance liquid chromatograph with UV-vis detector and identified using the TDPBMS and 1H NMR. The major products observed in reactions of linear alkenes were [beta]-hydroxynitrates, dihydroxynitrates, cyclic hemiacetals, dihydrofurans, and dimers formed from dihydroxycarbonyls. Trihydroxynitrates and trihydroxycarbonyls were observed in reactions of 2-methyl-1-alkenes, in addition to the products listed above. Dimers were not observed, apparently because electron donation by the additional methyl group (compared to linear 1-alkenes) reduces the driving force for hemiacetal formation. The measured yields of [beta]-hydroxynitrates, dihydroxynitrates, and trihydroxynitrates were used to calculate relative ratios of 1.0:1.9:4.3 for forming primary, secondary, and tertiary [beta]-hydroxyalkyl radicals by OH radical addition to the C=C double bond, and branching ratios of 0.12, 0.15, and 0.25 for forming [beta]-hydroxynitrates from reactions of primary, secondary, and tertiary â-hydroxyperoxy radicals with NO. The trends are consistent with expected relative stabilities of [beta]-hydroxyalkyl radicals and ß-hydroxyperoxy radical-NO complexes. It should be possible to use these values to estimate product yields from similar reactions of other alkenes. Comparison of measured and model-calculated SOA yields showed that in some cases the models provide accurate predictions of SOA yields, but that uncertainties in gas- and particle-phase chemistry and gas-particle partitioning can lead to significant discrepancies. More limited environmental chamber studies were also carried out on SOA formation from reactions of linear alkenes with NO3 radicals. The major products were [beta]-hydroxynitrates, [beta]-carbonylnitrates, dihydroxynitrates, and hydroxy- and oxo- dinitrooxytetrahydrofurans, which had not been observed previously. It was observed that isomerization of [delta]-hydroxycarbonyls to cyclic hemiacetals, followed by dehydration to highly reactive dihydrofurans that can be further oxidized, can be important sources of SOA from reactions of alkenes with OH and NO3 radicals.
Book Synopsis Laboratory Studies on the Formation of Secondary Organic Aerosol from the Atmospheric Oxidation of Alkenes by : Kenneth Stephen Docherty
Download or read book Laboratory Studies on the Formation of Secondary Organic Aerosol from the Atmospheric Oxidation of Alkenes written by Kenneth Stephen Docherty and published by . This book was released on 2004 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanisms of Atmospheric Oxidation of the Alkanes by : Jack G Calvert
Download or read book Mechanisms of Atmospheric Oxidation of the Alkanes written by Jack G Calvert and published by Oxford University Press. This book was released on 2008-09-15 with total page 1005 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international team of eminent atmospheric scientists have prepared Mechanisms of Atmospheric Oxidation of the Alkanes as an authoritative source of information on the role of alkanes in the chemistry of the atmosphere. The book includes the properties of the alkanes and haloalkanes, as well as a comprehensive review and evaluation of the existing literature on the atmospheric chemistry of the alkanes and their major atmospheric oxidation products, and the various approaches now used to model the alkane atmospheric chemistry. Comprehensive coverage is given of both the unsubstituted alkanes and the many haloalkanes. All the existing quality measurements of the rate coefficients for the reactions of OH, Cl, O(3P), NO3, and O3 with the alkanes, the haloalkanes, and their major oxidation products have been reviewed and evaluated. The expert authors then give recommendations of the most reliable kinetic data. They also review the extensive literature on the mechanisms and rates and modes of photodecomposition of the haloalkanes and the products of atmospheric oxidation of the alkanes and the haloalkanes, and make recommendations for future use by atmospheric scientists. The evaluations presented allow an extrapolation of the existing kinetic and photochemical data to those alkanes and haloalkanes that are as yet unstudied. The current book should be of special interest and value to the modelers of atmospheric chemistry as a useful input for development of realistic modules designed to simulate the atmospheric chemistry of the alkanes, their major oxidation products, and their influence on ozone and other trace gases within the troposphere.
Book Synopsis Improving Chemical Mechanisms for Ozone and Secondary Organic Carbon by : Christopher D. Cappa
Download or read book Improving Chemical Mechanisms for Ozone and Secondary Organic Carbon written by Christopher D. Cappa and published by . This book was released on 2017 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Volatile Organic Compounds in the Atmosphere by : Ralf Koppmann
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.
Book Synopsis Advances In Atmospheric Chemistry - Volume 2: Organic Oxidation And Multiphase Chemistry by : John R Barker
Download or read book Advances In Atmospheric Chemistry - Volume 2: Organic Oxidation And Multiphase Chemistry written by John R Barker and published by World Scientific. This book was released on 2019-01-07 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series presents authoritative invited summaries of research on atmospheric chemistry in a changing world. These range from comprehensive reviews of major subject areas to focused accounts by individual research groups. The topics may include laboratory studies, field measurements, in situ monitoring and remote sensing, studies of composition, chemical modeling, theories of atmospheric chemistry and climate, feedback mechanisms, emissions and deposition, biogeochemical cycles, and the links between atmospheric chemistry and the climate system at large.Volume 2 comprises chapters describing research on multiphase chemistry affecting air quality in China, on multiphase chemistry of organic compounds leading to secondary organic aerosol formation, on biogeochemical cycles involving ammonia, on oxidation of aromatic compounds, on reactions of Criegee intermediates (important in oxidation of alkenes), and on laboratory and field measurements of isotopic fractionation in the atmosphere.
Book Synopsis Photooxidation Yields of Organic Nitrates and the Influence of the Nitrate Moiety on Aerosol Formation by : Geoffrey Keith Yeh
Download or read book Photooxidation Yields of Organic Nitrates and the Influence of the Nitrate Moiety on Aerosol Formation written by Geoffrey Keith Yeh and published by . This book was released on 2013 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic nitrates occur throughout the atmosphere, routinely detected in rural, marine, and urban environments as gases and as components of particles. They can be formed in substantial quantities from the reactions of volatile organic compounds (VOCs) with OH radicals in the presence of nitrogen oxides (NO[subscript x]), and from the reactions of alkenes with NO3 radicals. Formation of organic nitrates affects ozone concentrations by sequestering NO[subscript x], the catalyst required for ozone formation. Organic nitrates of sufficiently low volatility condense to form secondary organic aerosol (SOA), a major component of atmospheric aerosol, which affects surface albedo and cloud formation, and therefore climate. Since organic nitrates contribute to particle mass and affect NO[subscript x] concentrations, quantitative understanding of the conditions governing their formation is needed for accurate atmospheric modeling of ozone and aerosol.
Book Synopsis Aerosol Formation from Gas Phase Reactions of Ozone and Olefin in the Presence of Sulfur Dioxide by : David Nicholas McNelis
Download or read book Aerosol Formation from Gas Phase Reactions of Ozone and Olefin in the Presence of Sulfur Dioxide written by David Nicholas McNelis and published by . This book was released on 1974 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Secondary Organic Aerosol Formation from Reactions of Linear, Branched and Cyclic Alkanes with OH Radicals in the Presence of NO[subscript X] by : Yong Bin Lim
Download or read book Secondary Organic Aerosol Formation from Reactions of Linear, Branched and Cyclic Alkanes with OH Radicals in the Presence of NO[subscript X] written by Yong Bin Lim and published by . This book was released on 2008 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigating Sources and Sinks of Organic Aerosols by : Alan J. Kwan
Download or read book Investigating Sources and Sinks of Organic Aerosols written by Alan J. Kwan and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Secondary organic aerosol (SOA) are important components in atmospheric processes and significantly impact human health. The complexity of SOA composition and formation processes has hampered efforts to fully characterize their impacts, and to predict how those impacts will be affected by changes in climate and human activity. Here, we explore SOA formation in the laboratory by coupling an environmental chamber with a suite of analytical tools, including a gas-phase mass spectrometry technique that is well suited for tracking the hydrocarbon oxidation processes that drive SOA formation. Focusing on the oxidation of isoprene by the nitrate radical, NO3, we find that reactions of peroxy radicals (RO2) to form ROOR dimers is an important process in SOA formation. The other gas-phase products of these RO2 reactions differ from what is expected from studies of simpler radicals, indicating that more studies are necessary to fully constrain RO2 chemistry. Finally, we examine the role of heterogeneous oxidation as a sink of organic aerosol and a source of oxygenated volatile organic compounds in the free troposphere.
Book Synopsis Atmospheric Multiphase Chemistry by : Hajime Akimoto
Download or read book Atmospheric Multiphase Chemistry written by Hajime Akimoto and published by John Wiley & Sons. This book was released on 2020-03-27 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important guide that highlights the multiphase chemical processes for students and professionals who want to learn more about aerosol chemistry Atmospheric Multiphase Reaction Chemistry provides the information and knowledge of multiphase chemical processes and offers a review of the fundamentals on gas-liquid equilibrium, gas phase reactions, bulk aqueous phase reactions, and gas-particle interface reactions related to formation of secondary aerosols. The authors—noted experts on the topic—also describe new particle formation, and cloud condensation nuclei activity. In addition, the text includes descriptions of field observations on secondary aerosols and PM2.5. Atmospheric aerosols play a critical role in air quality and climate change. There is growing evidence that the multiphase reactions involving heterogeneous reactions on the air-particle interface and the reactions in the bulk liquid phase of wet aerosol and cloud/fog droplets are important processes forming secondary aerosols in addition to gas-phase oxidation reactions to form low-volatile compounds. Comprehensive in scope, the book offers an understanding of the topic by providing a historical overview of secondary aerosols, the fundamentals of multiphase reactions, gas-phase reactions of volatile organic compounds, aqueous phase and air-particle interface reactions of organic compound. This important text: Provides knowledge on multiphase chemical processes for graduate students and research scientists Includes fundamentals on gas-liquid equilibrium, gas phase reactions, bulk aqueous phase reactions, and gas-particle interface reactions related to formation of secondary aerosols Covers in detail reaction chemistry of secondary organic aerosols Written for students and research scientists in atmospheric chemistry and aerosol science of environmental engineering, Atmospheric Multiphase Reaction Chemistry offers an essential guide to the fundamentals of multiphase chemical processes.
Book Synopsis Secondary Organic Aerosol Formation from Aromatic Hydrocarbons by : Chen Song
Download or read book Secondary Organic Aerosol Formation from Aromatic Hydrocarbons written by Chen Song and published by . This book was released on 2006 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processes in Atmospheric Oxidation by : Georges Le Bras
Download or read book Chemical Processes in Atmospheric Oxidation written by Georges Le Bras and published by Springer Science & Business Media. This book was released on 1997 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidation and removal of atmospheric constituents involve complex sequences of reactions which can lead to the production of photo-oxidants such as ozone. In order to understand and model these complex reaction sequences, it is necessary to have a comprehensive understanding of reaction mechanisms and accurate estimates of kinetic parameters for relevant gas-phase atmospheric reactions. This book presents recent advances in the field and includes the following topics: e.g. the oxidation of simple organic compounds, NOx kinetics and mechanisms, OH radical production and rate constants for the OH attack on more complex organic compounds, peroxy and alkoxy radical reactions, photo-oxidation of aromatic and biogenic compounds, and the interaction between radical species.
Book Synopsis Environmental Chamber Study of Atmospheric Chemistry and Secondary Organic Aerosol Formation Using Cavity Enhanced Absorption Spectroscopy by : Yingdi Liu
Download or read book Environmental Chamber Study of Atmospheric Chemistry and Secondary Organic Aerosol Formation Using Cavity Enhanced Absorption Spectroscopy written by Yingdi Liu and published by . This book was released on 2011 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is only a part of my research work. For more information about my other work, including cavity ring down spectroscopy studies for peroxy radical, aerosol optical extinction, transparent thin and time of flight mass spectrometry studies for the initial steps of ozone and alkenes reaactions, please refer to my PhD thesis in Chemistry department, UC-Riverside.
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