[PDF] Design Of An Ambient Aerosol Sampling System For High And Medium Speed Applications eBook

Author : James H. Vincent
Publisher : John Wiley & Sons
Page : 636 pages
File Size : 24,86 MB
Release : 2007-04-04
Category : Science
ISBN : 0470060220

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This book provides a comprehensive account of the important field of aerosol sampling as it is applied to the measurement of aerosols that are ubiquitous in occupational and living environments, both indoor and outdoor. It is written in four parts: Part A contains 9 chapters that describe the current knowledge of the physical science that underpins the process of aerosol sampling. Part B contains 4 chapters, which present the basis of standards for aerosols, including the link with human exposure by inhalation. Part C contains 7 chapters that cover the development of practical aerosol sampling instrumentation, and how technical designs and methods have evolved over the years in order that aerosol sampling may be carried out in a manner matching the health-related and other criteria that have been proposed as parts of standards. Finally Part D contains 6 chapters that describe how a wide range of aerosol sampling instruments have performed when they have been applied in the field in both occupational and ambient atmospheric environments, including how different instruments, nominally intended to measure the same aerosol fraction, compare when used side-by-side in the real world. The book draws together all that is known about aerosol sampling, for the benefit of researchers and practitioners in occupational and environmental health and all other fields of science and engineering where aerosols are of interest.

Author : Pramod Kulkarni
Publisher : John Wiley & Sons
Page : 1497 pages
File Size : 14,72 MB
Release : 2011-09-09
Category : Science
ISBN : 1118001672

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Aerosol Measurement: Principles, Techniques, and Applications Third Edition is the most detailed treatment available of the latest aerosol measurement methods. Drawing on the know-how of numerous expert contributors; it provides a solid grasp of measurement fundamentals and practices a wide variety of aerosol applications. This new edition is updated to address new and developing applications of aerosol measurement, including applications in environmental health, atmospheric science, climate change, air pollution, public health, nanotechnology, particle and powder technology, pharmaceutical research and development, clean room technology (integrated circuit manufacture), and nuclear waste management.

Author :
Publisher :
Page : 356 pages
File Size : 24,67 MB
Release : 2003
Category : Dissertations, Academic
ISBN :

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"Education, arts and social sciences, natural and technical sciences in the United States and Canada".

Author : Benjamin Y.H. Liu
Publisher : Elsevier
Page : 852 pages
File Size : 50,29 MB
Release : 2012-12-02
Category : Technology & Engineering
ISBN : 0323142214

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Fine Particles: Aerosol Generation, Measurement, Sampling, and Analysis is a collection of technical papers presented at the Symposium on Fine Particles held in Minneapolis, Minnesota, on May 28-30, 1975. The symposium aims to explore the developments in instrumentation and experimental techniques for aerosol studies. This book is organized into four parts encompassing 34 chapters that focus on fine particles below about 3.5 μm in diameter. Part I presents the research and development in Europe and Japan on fine particles and aerosols, as well as the aerosol standards development work at the Particle Technology Laboratory, University of Minnesota. This part also includes calibration studies on condensation nuclei counters and the diffusion battery. Significant chapters in Part II are devoted to the common techniques for generation of aerosols of various sizes, from fine particles to monodisperse aerosols. This part further looks into the equipment limitations and problems in producing fine particle aerosols for life testing air cleaning systems and for weather modification experimentation. Part III describes the techniques and equipment used for size-selective aerosol sampling in terms of the design principles applied, the correspondence between design and performance of specific samplers, their applicability to field conditions, and their ability to satisfy sampler acceptance criteria. Part IV deals first with the methods for determination of aerosol properties, including their optical, electrical, and spectral properties. Other chapters examine the principles, mode of operation, and application of processes and instruments for aerosol studies.

Author : Constantin Papastefanou
Publisher : Elsevier
Page : 187 pages
File Size : 36,1 MB
Release : 2011-07-28
Category : Medical
ISBN : 0080555985

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Whenever radioactivity is released to the atmosphere, for example by the detonation of nuclear weapons or the testing of nuclear weapons or from nuclear reactor accidents that fraction of it which remains airborne for more than a few hours is liable to be attached to aerosol particles. The resulting radioactive aerosols are carried by atmospheric mixing processes until they settle out or are scavenged by precipitation. The radiation exposure pathway of maximum concern to humans is by inhalation of aerosols and their deposition in the respiratory tract. In this context, it is important to note that radioactive aerosols are commonly of natural origin alos. In particular, the associated radionuclides can be of natural terrestrial origin, such as the decay products of radon gas, or they can e cosmogenic, such as beryllium-7. The exposure of miners of uranium and other ores and minerals to radon and its aerosol-borne decay products is of major significance. The book describes the formation of aerosols, their aerodynamic size distribution, their atmospheric residence time, their sampling and measurement, the range of radioactive aerosols found and studied thus far, including man-made nuclides and radon decay products and their interaction with man, including deposition in the lung and subsequent health effects. Advanced level science handbook for researchers, scientists and academics Covers all aspects of radiation exposure in humans, including subsequent health implications Presents the latest findings and analysis in this highly topical area

Author :
Publisher :
Page : 84 pages
File Size : 28,2 MB
Release : 1979
Category : Aerosols
ISBN :

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Studies were conducted on the use of Nuclepore filters to perform a dichotomous particle size separation in ambient aerosols. Optimization of the resulting stacked filter unit was undertaken, with incorporation of information from theoretical analyses, laboratory studies, and tests in a variety of ambient conditions. The stacked filter unit was improved by development of antibounce coatings for the coarse filter, incorporation of a new fine filter developed by the Nuclepore Corporation, and addition of a pneumatic constant flow device. The unit has been shown to quantitatively collect particles between 2.5 micrometers and 15 micrometers on the coarse filter, and 0 to 2.5 micrometers on the fine filter, with a separation curve similar to that of the human respiratory tract. Stacked filter units weigh about 15 kg., and total cost of components for the basic unit is about 200 dollars.

Author :
Publisher :
Page : pages
File Size : 28,11 MB
Release : 2004
Category :
ISBN :

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A system for sampling air and collecting particulate of a predetermined particle size range. A low pass section has an opening of a preselected size for gathering the air but excluding particles larger than the sample particles. An impactor section is connected to the low pass section and separates the air flow into a bypass air flow that does not contain the sample particles and a product air flow that does contain the sample particles. A wetted-wall cyclone collector, connected to the impactor section, receives the product air flow and traps the sample particles in a liquid.