Download or read book The Chemistry of Nitrate Radical NO3 and Dinitrogen Pentoxide N2O5 in Beijing written by Haichao Wang and published by Springer Nature. This book was released on 2020-10-31 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically describes the instrument setup for the measurement of nitrate radical (NO3) and dinitrogen pentoxide (N2O5), as well as the mixing ratio, chemical behaviors, and atmospheric impacts of NO3 and N2O5 in Beijing, China. It also discusses the instrument design and data analysis method in detail. Based on several field measurements of NO3 and N2O5 in Beijing, it shows the variation in concentration and the budget of NO3 and N2O5. The N2O5 heterogeneous uptake coefficient was determined using various methods, and the relationship between the N2O5 uptake coefficient and the particle properties was demonstrated, as well as the impact of NO3–N2O5 chemistry to the atmospheric oxidation and the formation of particulate nitrate. These results increase our understanding of nighttime chemistry and provide insights into the role of NO3–N2O5 chemistry in other polluted regions.
Download or read book Differential Optical Absorption Spectroscopy written by Ulrich Platt and published by Springer Science & Business Media. This book was released on 2008-05-30 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of this book reviews the basics of atmospheric chemistry, radiation transport, and optical spectroscopy before detailing the principles underlying DOAS. The second part describes the design and application of DOAS instruments as well as the evaluation and interpretation of spectra. The recent expansion of DOAS application to the imaging of trace gas distributions by ground, aircraft, and satellite-based instruments is also covered.
Download or read book The Nitrate Radical written by Richard P. Wayne and published by . This book was released on 1991 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Urban Air Pollution European Aspects written by J. Fenger and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: This European Community-initiated book presents an up-to-date account of the air pollution situation with special reference to European cities. Its structure follows by and large the logical chain of events in air pollution, from sources, through dispersion and deposition, to impacts.
Download or read book Interim Assessment Atmospheric processes written by National Acid Precipitation Assessment Program (U.S.) and published by . This book was released on 1987 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book QSAR in Safety Evaluation and Risk Assessment written by Huixiao Hong and published by Elsevier. This book was released on 2023-08-12 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: QSAR in Safety Evaluation and Risk Assessment provides comprehensive coverage on QSAR methods, tools, data sources, and models focusing on applications in products safety evaluation and chemicals risk assessment. Organized into five parts, the book covers almost all aspects of QSAR modeling and application. Topics in the book include methods of QSAR, from both scientific and regulatory viewpoints; data sources available for facilitating QSAR models development; software tools for QSAR development; and QSAR models developed for assisting safety evaluation and risk assessment. Chapter contributors are authored by a lineup of active scientists in this field. The chapters not only provide professional level technical summarizations but also cover introductory descriptions for all aspects of QSAR for safety evaluation and risk assessment. - Provides comprehensive content about the QSAR techniques and models in facilitating the safety evaluation of drugs and consumer products and risk assesment of environmental chemicals - Includes some of the most cutting-edge methodologies such as deep learning and machine learning for QSAR - Offers detailed procedures of modeling and provides examples of each model's application in real practice
Download or read book Trace Gas Exchange in Forest Ecosystems written by R. Gasche and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume summarizes the current knowledge on the exchange of trace gases between forests and the atmosphere with the restriction that exclusively carbon and nitrogen compounds are included. For this purpose the volume brings together and interconnects knowledge from different disciplines of biological and atmospheric sciences. It covers microbial and plant processes involved in the production and consumption of these trace gases; the exchange processes between forest soils and vegetation on the one hand, and the atmosphere on the other hand; the fate of the trace gases exchanged inside the atmosphere as well as environmental influences on the exchange of trace gases between forest ecosystems and the atmosphere. With this interdisciplinary approach the volume provides the background for an evaluation of the exchange of trace gases between forest ecosystems and the atmosphere and man-made disturbances of this exchange.
Download or read book Atmospheric Science for Environmental Scientists written by C. Nick Hewitt and published by John Wiley & Sons. This book was released on 2009-03-12 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change and air quality are two of the most pressing issuesfacing Mankind. This book gives undergraduate and graduate studentsand professionals working in the science and policy of pollution,climate change and air quality a broad and up-to-date account ofour understanding of the processes that occur in the atmosphere,how these are changing as Man’s relentless use of naturalresources continues and what effects these changes are having onthe Earth’s climate and the quality of the air we breath. Written by an international team of experts, this text gives anexcellent overview of our current understanding of the state of theEarth’s atmosphere and how it is changing. It is aninvaluable resource for students, teachers and professionals. Key features: End of chapter questions Each chapter includes both basic concepts and more in-depthmaterial, allowing faculty to direct students accordingly Most up-to-date treatment of key issues such as stratosphericchemistry, urban air pollution, and climate change
Download or read book Free Radicals in Biology and Environment written by F. Minisci and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our understanding of the quantitative aspects of free radical chemistry and the involvement of radicals in such areas as biology, medicine, the environment, etc., has developed spectacularly over recent years, yet the various topics are commonly discussed separately, in specific meetings and specialised publications. Free Radicals in Biology and Environment draws together two important areas of free radical chemistry, using as a bridge the fundamental physical chemistry of free radicals (spectroscopic detection of free radicals, evaluation of absolute rate constants, elucidation of mechanisms of free radical reactions and catalysis, photochemical and radiation processes, etc.). The most relevant topics covered are the EPR detection of radicals in biochemical systems and in pollutant formation and degradation, oxidation processes in biology and in the troposphere, radiation and induced damage, and atmospheric pollutants arising from incomplete combustion. Also covered are the chemistry and biochemistry of nitric oxide and peroxynitrite, the chemistry and biochemistry of DNA radicals, the role of radicals in myeloperoxidase, lignineperoxidase, radicals and cardiovascular injury, radiation and the fragmentation of cells and tissues.
Download or read book Health of the Atmosphere written by and published by . This book was released on 1999 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropospheric Chemistry written by W. Seiler 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 formation, transport and impact of photo-oxidants, e.g., ozone, is a major environmental problem in densely populated areas with corresponding high emissions of ozone precursor substances such as NOx and volatile organic carbon compounds (VOC). Although major progress has been achieved within the last decade, there are still significant uncertainties in our understanding of the chemical behavior of the polluted atmosphere, in particular the interaction between cities and surrounding areas as well as the contribution of pollution to the global changes, e.g., the oxidation capacity of the troposphere. This book focuses on specific issues related to the chemistry of polluted atmospheres. The main issues cover areas such as modelling, emission inventories, chemical transformation as well as transport of pollutants on an urban/regional scale. The overall topic of the book is addressed in an interdisciplinary approach. The book is of specific interest for advanced researchers in tropospheric chemistry, from the PhD or post-doctoral levels and beyond.
Download or read book Handbook of Atmospheric Science written by C. Nick Hewitt and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: The alarming consequences of global climate change have highlighted the need to take urgent steps to combat the causes of air pollution. Hence, understanding the Earth's atmosphere is a vital component in Man's emerging quest for developing sustainable modes of behaviour in the 21st century. Written by a team of expert scientists, the Handbook of Atmospheric Science provides a broad and up-to-date account of our understanding of the natural processes that occur within the atmosphere. It examines how Man’s activities have had a detrimental effect on the climate, and how measures may be implemented in order to modify these activities. The book progresses through chapters covering the principles of atmospheric science and the current problems of air pollution at the urban, regional and global scales, to the tools and applications used to understand air pollution. The Handbook of Atmospheric Science offers an excellent overview of this multi-disciplinary subject and will prove invaluable to both students and researchers of atmospheric science, air pollution and global change.
Download or read book Cavity Ring Down Spectroscopy written by Giel Berden and published by John Wiley & Sons. This book was released on 2009-08-11 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cavity Ring-Down Spectroscopy: Techniques and Applications provides a practical overview of this valuable analytical tool, explaining the fundamental concepts and experimental methods, and illustrating important applications. Designed as both an introductory text and a reference source, this book is relevant for scientists unfamiliar with CRDS who are interested in using the technique in their research, as well as experienced users.
Download or read book Chemistry of the Upper and Lower Atmosphere written by Barbara J. Finlayson-Pitts and published by Elsevier. This book was released on 1999-11-17 with total page 993 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is the most comprehensive and up-to-date treatment of one of the hottest areas of chemical research. The treatment of fundamental kinetics and photochemistry will be highly useful to chemistry students and their instructors at the graduate level, as well as postdoctoral fellows entering this new, exciting, and well-funded field with a Ph.D. in a related discipline (e.g., analytical, organic, or physical chemistry, chemical physics, etc.). Chemistry of the Upper and Lower Atmosphere provides postgraduate researchers and teachers with a uniquely detailed, comprehensive, and authoritative resource. The text bridges the "gap" between the fundamental chemistry of the earth's atmosphere and "real world" examples of its application to the development of sound scientific risk assessments and associated risk management control strategies for both tropospheric and stratospheric pollutants. - Serves as a graduate textbook and "must have" reference for all atmospheric scientists - Provides more than 5000 references to the literature through the end of 1998 - Presents tables of new actinic flux data for the troposphere and stratospher (0-40km) - Summarizes kinetic and photochemical date for the troposphere and stratosphere - Features problems at the end of most chapters to enhance the book's use in teaching - Includes applications of the OZIPR box model with comprehensive chemistry for student use
Download or read book Interim Assessment written by and published by . This book was released on 1987 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 2012-12-06 with total page 316 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.
Download or read book The Mechanisms of Reactions Influencing Atmospheric Ozone written by Jack G. Calvert and published by Oxford University Press. This book was released on 2015-05-13 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ozone, an important trace component, is critical to life on Earth and to atmospheric chemistry. The presence of ozone profoundly impacts the physical structure of the atmosphere and meteorology. Ozone is also an important photolytic source for HO radicals, the driving force for most of the chemistry that occurs in the lower atmosphere, is essential to shielding biota, and is the only molecule in the atmosphere that provides protection from UV radiation in the 250-300 nm region. However, recent concerns regarding environmental issues have inspired a need for a greater understanding of ozone, and the effects that it has on the Earth's atmosphere. The Mechanisms of Reactions Influencing Atmospheric Ozone provides an overview of the chemical processes associated with the formation and loss of ozone in the atmosphere, meeting the need for a greater body of knowledge regarding atmospheric chemistry. Renowned atmospheric researcher Jack Calvert and his coauthors discuss the various chemical and physical properties of the earth's atmosphere, the ways in which ozone is formed and destroyed, and the mechanisms of various ozone chemical reactions in the different spheres of the atmosphere. The volume is rich with valuable knowledge and useful descriptions, and will appeal to environmental scientists and engineers alike. A thorough analysis of the processes related to tropospheric ozone, The Mechanisms of Reactions Influencing Atmospheric Ozone is an essential resource for those hoping to combat the continuing and future environmental problems, particularly issues that require a deeper understanding of atmospheric chemistry.
