Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Chemical Characterization Of Organic Carbon In Various Particulate Matter Samples full books in PDF, epub, and Kindle. Read online Chemical Characterization Of Organic Carbon In Various Particulate Matter Samples ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Tylor Jeremy Lahren
Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.:/5 (728 download)
Download or read book Chemical Characterization of Organic Carbon in Various Particulate Matter Samples written by Tylor Jeremy Lahren and published by . This book was released on 2010 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 276 pages
Book Rating : 4.F/5 ( download)
Download or read book Characterization of Organic Particulate Matter--II written by and published by . This book was released on 1982 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Manousos-Ioannis Manousakas
Publisher : MDPI
ISBN 13 : 303650995X
Total Pages : 246 pages
Book Rating : 4.0/5 (365 download)
Download or read book Sources and Composition of Ambient Particulate Matter written by Manousos-Ioannis Manousakas and published by MDPI. This book was released on 2021-09-10 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research related to ambient particulate matter (PM) remains very relevant today due to the adverse effects that PM have on human health. PM are pollutants with varying chemical compositions and may originate from multiple emission sources, which directly affects their toxicity. To formulate effective control and mitigation strategies, it is necessary to identify PM sources and to estimate their influence on ambient PM concentration, a process that is known as source apportionment (SA). Depending on the geographical location and characteristics of an area, many anthropogenic and natural sources may contribute to PM concentration levels, such as dust resuspension, sea salt, traffic, secondary aerosol formation, industrial emissions, ship emissions, biomass burning, power plant emissions, etc. Different methodological approaches have been used over the years to study the aforementioned topics, but some scientific challenges remain, mainly related to the following subjects: real-time chemical analysis and SA, uncertainty estimation of SA results, and analytical optimization for PM samples. Additionally, there are areas in the world for which the results regarding composition and sources of PM are still scarce. The objective of this collection was to include studies on all aspects of PM chemical characterization and source apportionment regarding the inorganic and/or organic fractions of PM.
Author : George T. Wolff
Publisher : Springer Science & Business Media
ISBN 13 : 146844154X
Total Pages : 405 pages
Book Rating : 4.4/5 (684 download)
Download or read book Particulate Carbon written by George T. Wolff and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the papers and discussions from the symposium, "PARTICU LATE CARBON: Atmospheric Life Cycle," held at the General Motors Research Laboratories on October 13-14, 1980. This symposium, which focused on atmospheric particulate elemental carbon, or soot, was the twenty-fifth in this series sponsored by the General Motors Research Laboratories. The present symposium volume contains discussions of the following aspects of particulate elemental carbon (EC): the atmos pheric life cycle of EC including sources, sinks, and transport processes, the role of EC in atmospheric chemistry and optics, the possible role of EC in altering climate, and measurement techniques as well as ambient concentrations in urban, rural, and remote areas. Previous symposia have covered a wide range of scientific and engineering subjects. Topics are selected because they are new or represent rapidly changing fields and are of significant technical importance. It is ironic that the study of particulate elemental carbon or soot should meet the above criteria for selection because soot, especially from coal and wood combustion, has been a recognized air pollutant for centuries. However, since the 1950s, when intense efforts to study air pollution were initiated, to until a few years ago, the role of elemental carbon in the atmosphere was largely ignored. The major reason for this was the lack of a suitable measurement technique.
Author : Alain Saliot
Publisher : Springer Science & Business Media
ISBN 13 : 9783540250180
Total Pages : 440 pages
Book Rating : 4.2/5 (51 download)
Download or read book The Mediterranean Sea written by Alain Saliot and published by Springer Science & Business Media. This book was released on 2005-08-24 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume represents a practical survey of current understanding of chemical contamination of the Mediterranean Sea. Beginning with an overview of the general physical and socio-economic context, the author reviews the exploration of processes governing the fate of chemicals, assesses the budget of both inorganic and organic contaminants, and describes new tools for studying the impact of pollution on the Mediterranean.
Author : Henry Freiser
Publisher :
ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (113 download)
Download or read book Analysis and characterization of organic carbon compounds in atmospheric particulate matter written by Henry Freiser and published by . This book was released on 1984 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309144019
Total Pages : 248 pages
Book Rating : 4.3/5 (91 download)
Download or read book Global Sources of Local Pollution written by National Research Council and published by National Academies Press. This book was released on 2010-02-15 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in air pollution monitoring and modeling capabilities have made it possible to show that air pollution can be transported long distances and that adverse impacts of emitted pollutants cannot be confined to one country or even one continent. Pollutants from traffic, cooking stoves, and factories emitted half a world away can make the air we inhale today more hazardous for our health. The relative importance of this "imported" pollution is likely to increase, as emissions in developing countries grow, and air quality standards in industrial countries are tightened. Global Sources of Local Pollution examines the impact of the long-range transport of four key air pollutants (ozone, particulate matter, mercury, and persistent organic pollutants) on air quality and pollutant deposition in the United States. It also explores the environmental impacts of U.S. emissions on other parts of the world. The book recommends that the United States work with the international community to develop an integrated system for determining pollution sources and impacts and to design effective response strategies. This book will be useful to international, federal, state, and local policy makers responsible for understanding and managing air pollution and its impacts on human health and well-being.
Author : N. Handa
Publisher : Springer Science & Business Media
ISBN 13 : 9401713197
Total Pages : 561 pages
Book Rating : 4.4/5 (17 download)
Download or read book Dynamics and Characterization of Marine Organic Matter written by N. Handa and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade the scientific activities of the Joint Global Ocean Flux Study (JGOFS), which focuses on the role of the oceans in controlling climate change via the transport and storage of greenhouse gases and organic matter, have led to an increased interest in the study of the biogeochemistry of organic matter. There is also a growing interest in global climate fluctuations. This, and the need for a precise assessment of the dynamics of carbon and other bio-elements, has led to a demand for an improved understanding of biogeochemical processes and the chemical characteristics of both particulate and dissolved organic matter in the ocean. A large amount of proxy data has been published describing the changes of the oceanic environment, but qualitative and quantitative estimates of the vertical flux of (proxy) organic compounds have not been well documented. There is thus an urgent need to pursue this line of study and, to this end, this book starts with several papers dealing with the primary production of organic matter in the upper ocean. Thereafter, the book goes on to follow the flux and characterization of particulate organic matter, discussed in relation to the primary production in the euphotic zone and resuspension in the deep waters, including the vertical flux of proxy organic compounds. It goes on to explain the decomposition and transformation of organic matter in the ocean environment due to photochemical and biological agents, and the reactivity of bulk and specific organic compounds, including the air-sea interaction of biogenic gases. The 22 papers in the book reflect the interests of JGOFS and will thus serve as a valuable reference source for future biogeochemical investigations of both bio-elements and organic matter in seawater, clarifying the role of the ocean in global climate change.
Author : David C. Hurd
Publisher : American Geophysical Union
ISBN 13 :
Total Pages : 492 pages
Book Rating : 4.:/5 (318 download)
Download or read book Marine Particles written by David C. Hurd and published by American Geophysical Union. This book was released on 1991-01-08 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 63. In the past twenty or so years, there has been an increasing amount of interest in suspended particulates in seawater. This interest has concentrated on defining the distribution and variance of particle mass, composition, and flux. It is now well recognized that biogenic and other particle fluxes in the ocean define the principle mechanisms of non-conservative behavior that influence all reactive material. There is, however, concern that the analytical and sampling variability associated with our methods must be sufficiently within our control in order to discern important temporal and spatial variability of particles and fluxes. A review of papers in the recent literature which deal with analyzing the chemical and physical properties of particles collected by traps, pumps and other samplers, reveals that there is a considerable diversity of approaches and techniques being used by the community of active researchers in this field.
Author : Chatten Cowherd
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.3/5 (555 download)
Download or read book Particulate Matter from Roadways written by Chatten Cowherd and published by . This book was released on 1998 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paved roads constitute a major category of PM-10 and PM-2.5 emissions in urban areas. Paved roadway resuspension processes emit antiskid materials, abraded pavement particles, rubber tire fragments, and dirt that is tracked from unpaved areas. In the Denver area, exceedances of the PM-10 standard in late winter and early spring are related to residual road sand loadings from wintertime antiskid controls. This report presents the results of research, sponsored by the Colorado Department of Transportation, to (a) determine the relationships between the paved roadway surface dust characteristics and fine particle emissions, and (b) evaluate emission control measures that reduce road surface silt loadings (either by preventive or mitigative means). Several types of field studies were used in performing this research. The Correlation Studies entailed simultaneous paved road plume profiling and road surface material sampling at three test sites in the Denver metropolitan area. The composition of collected airborne and surface samples were analyzed by chemical and microscopic analysis. The upwind/downwind airborne particulate matter samples that were selected for analysis included PM-10 and PM-2.5, while the road surface samples included the resuspended PM-10 and PM-2.5 from Midwest Research Institute's Dustiness Test Chamber. The Correlation Studies demonstrated that emission control effectiveness for the paved road resuspension processes can be evaluated in terms of reductions of roadway surface material loadings. Additional composite surface sampling of Denver arterial roadways compared the effects of winter sanding and alternative chemical deicers on surface loadings.
Author : Richard A. Feely
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.:/5 (227 download)
Download or read book Chemical characterization of the particulate matter in the near bottom nepheloid layer of the Gulf of Mexico written by Richard A. Feely and published by . This book was released on 1974 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: During cruises 71-A-12 and 73-A-3 of the R/V Alaminos eighty six samples of suspended matter at eleven near bottom stations in the Gulf of Mexico and northwestern Caribbean Sea were collected, and simultaneously, values for light scattering were measured. Selected samples of the suspended matter were analyzed for particulate aluminum, silicon, iron, calcium, magnesium, organic carbon and inorganic carbon. The results indicate that a permanent but highly variable near bottom nepheloid layer exists in the Gulf of Mexico but not in the northwestern Caribbean Sea. Average total suspended loads in the Gulf of Mexico nepheloid layer are two times higher than in the clear water above the nepheloid layer. Time studies over periods of one week and one and one-half years showed large total suspended matter variations which indicate that non steady-state processes, primarily vertical eddy diffusion and possibly advection, are controlling the distribution of suspended matter in the nepheloid layer. (Modified author abstract).
Author : Rachelle Monique Duvall
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (89 download)
Download or read book Chemical Characterization and Source Apportionment Model Study of Atmospheric Aerosols in Asia written by Rachelle Monique Duvall and published by . This book was released on 2005 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chinese Academy of Sciences
Publisher : National Academies Press
ISBN 13 : 0309093236
Total Pages : 308 pages
Book Rating : 4.3/5 (9 download)
Download or read book Urbanization, Energy, and Air Pollution in China written by Chinese Academy of Sciences and published by National Academies Press. This book was released on 2005-02-04 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: In October 2003, a group of experts met in Beijing under the auspices of the Chinese Academy of Sciences, Chinese Academy of Engineering, and National Academy of Engineering (NAE)/National Research Council (NRC) of the National Academies to continue a dialogue and eventually chart a rational course of energy use in China. This collection of papers is intended to introduce the reader to the complicated problems of urban air pollution and energy choices in China.
Author : Joseph M. Norbeck
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (318 download)
Download or read book Characterization of Particulate Emissions from Gasoline-fueled Vehicles written by Joseph M. Norbeck and published by . This book was released on 1998 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fathi Zereini
Publisher : Springer Science & Business Media
ISBN 13 : 3642122787
Total Pages : 663 pages
Book Rating : 4.6/5 (421 download)
Download or read book Urban Airborne Particulate Matter written by Fathi Zereini and published by Springer Science & Business Media. This book was released on 2011-02-16 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the most up-to-date research and information regarding the origin, chemistry, fate and health impacts of airborne particulate matter in urban areas, a topic which has received a great deal of attention in recent years due to documented relationships between exposure and health effects such as asthma. With internationally recognised researchers and academics presenting their work and key concepts and approaches from a variety of disciplines, including environmental and analytical chemistry, biology, toxicology, mineralogy and the geosciences, this book addresses the topic of urban airborne particulate matter in a comprehensive, multidisciplinary manner. Topics and research addressed in the book range from common methodological approaches used to sample and analyse the composition of airborne particulates to our knowledge regarding their potential to impact human health and the various policy approaches taken internationally to regulate particulate matter levels.
Author : Malissa Hanns
Publisher : CRC Press
ISBN 13 : 1351078097
Total Pages : 314 pages
Book Rating : 4.3/5 (51 download)
Download or read book Analysis of Airborne Particles by Physical Methods written by Malissa Hanns and published by CRC Press. This book was released on 2018-01-18 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2018. Routledge is an imprint of Taylor & Francis, an Informa company.
Author : Youliang Wang
Publisher :
ISBN 13 :
Total Pages : 111 pages
Book Rating : 4.:/5 (911 download)
Download or read book Characterization of Atmospheric Organic Matter and Its Processing by Fogs and Clouds written by Youliang Wang and published by . This book was released on 2014 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: The atmosphere contains a substantial amount of water soluble organic material, yet despite years of efforts, little is known about the structure, composition and properties of this organic matter. Aqueous phase processing by fogs and clouds of the gas and particulate organic material is poorly understood despite the importance for air pollution and climate. On one hand, gas phase species can be processed by fog/cloud droplets to form lower volatility species, which upon droplet evaporation lead to new aerosol mass; while, on the other hand, larger nonvolatile material can be degraded in cloud oxidation to smaller molecular weight compounds and eventually CO2. In this work, High Performance Size Exclusion Chromatography coupled with inline organic carbon detection (SEC-DOC), Diffusion-Ordered Nuclear Magnetic Resonance spectroscopy (DOSY-NMR) and Fluorescence Excitation-Emission Matrices (EEM) were used to characterize molecular weight distribution, functionality and optical properties of atmospheric organic matter. Fogs, aerosols and clouds were studied in a variety of environments including Central Valley of California (Fresno, Davis), Pennsylvania (Selinsgrove), British Columbia (Whistler) and three locations in Norway. The molecular weight distributions using SEC-DOC showed smaller molecular sizes for atmospheric organic matter compared to surface waters and a smaller material in fogs and clouds compared to aerosol particles, which is consistent with a substantial fraction of small volatile gases that partition into the aqueous phase. Both cloud and aerosol samples presented a significant fraction (up to 21% of DOC) of biogenic nanoscale material. The results obtained by SEC-DOC were consistent with DOSY-NMR observations. Cloud processing of organic matter has also been investigated by combining field observations (sample time series) with laboratory experiments under controlled conditions. Observations revealed no significant effect of aqueous phase chemistry on molecular weight distributions overall although during cloud events, substantial differences were apparent between organic material activated into clouds compared to interstitial material. Optical properties, on the other hand, showed significant changes including photobleaching and an increased humidification of atmospheric material by photochemical aging. Overall, any changes to atmospheric organic matter during cloud processing were small in terms of bulk carbon properties, consistent with recent reports suggesting fogs and clouds are too dilute to substantially impact composition.
