Analysis Of Particulate Matter Dispersion Near Urban Roadways
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Analysis Of Particulate Matter Dispersion Near Urban Roadways Final Technical Report
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Author : Morgan Balogh
language : en
Publisher:
Release Date : 1992
Analysis Of Particulate Matter Dispersion Near Urban Roadways Final Technical Report written by Morgan Balogh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Roads categories.
Analysis Of Particulate Matter Dispersion Near Urban Roadways
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Author : Morgan Balogh
language : en
Publisher:
Release Date : 1991
Analysis Of Particulate Matter Dispersion Near Urban Roadways written by Morgan Balogh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Air categories.
Analysis Of Particulate Matter Dispersion Near Urban Roadways Summary
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Author : Morgan Balogh
language : en
Publisher:
Release Date : 1992
Analysis Of Particulate Matter Dispersion Near Urban Roadways Summary written by Morgan Balogh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Air categories.
Analysis Of Particulate Matter Dispersion Near Urban Roadways
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Author : Morgan Balogh
language : en
Publisher:
Release Date : 1991
Analysis Of Particulate Matter Dispersion Near Urban Roadways written by Morgan Balogh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Air categories.
Air Quality In Cities
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Author : Nicolas Moussiopoulos
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Air Quality In Cities written by Nicolas Moussiopoulos and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.
Urban areas are major sources of air pollution. Pollutant emissions affecting air quality in cities are considered to have adverse consequences for human health. Public and government concern about environmental issues arising from urban air pollution has increased over the last decades. The urban air pollution problem is widespread throughout the world and it is important to find ways of eliminating or at least reducing the risks for human health. The fundamentals of the physical and chemical processes occurring during air pollutant transport in the atmosphere are nowadays understood to a large extent. In particular, modelling of such processes has experienced a remarkable growth in the last decades. Monitoring capabilities have also improved markedly in the most urban areas around the world. However, neither modelling nor monitoring can solve urban air pollution problems, as they are only a first step in improving useful information for future regulations. The defining of efficient control strategies can not be achieved without a clear knowledge of the complete pollution process, i.e. emission, atmospheric transport and transformation, and deposition at the receptor. Improving our ability to establish valid urban scale source-receptor relation ships has been the objective of SA TURN, one of the 14 subprojects of EURO TRAC-2. Similar to the other subprojects of this co-ordinated environmental pro ject within the EUREKA initiative, SA TURN brought together international groups of scientists to work on problems directly related to atmospheric chemistry and physics. The present volume summarises the scientific results of SATURN.
Experimental And Numerical Analysis Of Traffic Emitted Nanoparticle And Particulate Matter Dispersion At Urban Pollution Hot Spots
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Author : Anju Goel
language : en
Publisher:
Release Date : 2017
Experimental And Numerical Analysis Of Traffic Emitted Nanoparticle And Particulate Matter Dispersion At Urban Pollution Hot Spots written by Anju Goel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Urban Airborne Particulate Matter
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Author : Fathi Zereini
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-02-16
Urban Airborne Particulate Matter written by Fathi Zereini and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-16 with Science categories.
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.
Quantitative Analysis Of Major Factors Affecting Black Carbon Transport And Concentrations In The Unique Atmospheric Structures Of Urban Environment
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Author : Marissa Shuang Liang
language : en
Publisher:
Release Date : 2014
Quantitative Analysis Of Major Factors Affecting Black Carbon Transport And Concentrations In The Unique Atmospheric Structures Of Urban Environment written by Marissa Shuang Liang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Black carbon (BC) from vehicular emission in transportation is a principal component of particulate matters [plus/minus] 2.5 [microgram] (PM2.5). PM2.5 and other diesel emission pollutants (e.g., NOx) are regulated by the Clean Air Act (CAA) according to the National Ambient Air Quality standards (NAAQS). This doctoral dissertation details a study on transport behaviors of black carbon and PM2.5 from transportation routes, their relations with the atmospheric structure of an urban formation, and their relations with the use of biodiesel fuels. The results have implications to near-road risk assessment and to the development of sustainable transportation solutions in urban centers. The first part of study quantified near-roadside black carbon transport as a function of particulate matter (PM) size and composition, as well as microclimatic variables (temperature and wind fields) at the interstate highway I-75 in northern Cincinnati, Ohio. Among variables examined, wind speed and direction significantly affect the roadside transport of black carbon and hence its effective emission factor. Observed non-Gaussian dispersion occurred during low wind and for wind directions at acute angles or upwind to the receptors, mostly occurring in the morning hours. Meandering of air pollutant mass under thermal inversion is likely the driving force. In contrary, Gaussian distribution predominated in daytime of strong downwinds. The roles of urban atmospheric structure, wind fields, and the urban heat island (UHI) effects were further examined on pollutant dispersion and transport. Spatiotemporal variations of traffic flow, atmospheric structure, ambient temperature and PM2.5 concentration data from 14 EPA-certified NAAQS monitoring stations, were analyzed in relation to land-use in the Cincinnati metropolitan area. The results show a decade-long UHI effects with higher interior temperature than that in exurban, and a prominent nocturnal thermal inversion frequent in urban boundary layer. The combined contribution from both traffic and atmospheric circulation accounted for observed spatiotemporal variability in PM2.5 concentrations. Based on these experimental and quantitative analyses, a three-dimensional model is proposed for contaminant's transport in highly urbanized Cincinnati region. Furthermore this dissertation explored implications on roadside pollutant evaluation, and on the risk analysis of future fuel substitution using biodiesel. The Gaussian-type models are poor in determining the effective emission factor particularly under nocturnal thermal inversion for which the effective emission factor is a function of lapse rate in the morning. The Gaussian models are applicable in daytime after the breakdown of thermal inversion. Lastly, among three types of fuels examined, the proposed butanol-added biodiesel-diesel blend (D0B15Bu5) yielded a good compromise between black carbon and NOx emissions while maintaining proper combustion properties. It is also found that the emission contained less black carbon and had higher organic carbon (OC) and elemental (EC) ratio than tested petroleum diesel. As demonstrated in other parts of this study, the OC-enriched emission will likely affect the black carbon occurrence and PM concentrations in the urban environments. Overall, it is suggested that urban formation and biofuel usage define the environmental impacts of black carbon, and are the focus for climate change mitigation and adaptation.
Summary Report On The Ncaq Atmospheric Dispersion Modeling Panel
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Author :
language : en
Publisher:
Release Date : 1980
Summary Report On The Ncaq Atmospheric Dispersion Modeling Panel written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Air quality management categories.
Dispersion Of Pollutants Near Highways
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Author :
language : en
Publisher:
Release Date : 1979
Dispersion Of Pollutants Near Highways written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Pollutants categories.