[PDF] Ambient Aerosol Sampling With Stacked Filter Units eBook

Author :
Publisher :
Page : 84 pages
File Size : 42,18 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 : James H. Vincent
Publisher : John Wiley & Sons
Page : 636 pages
File Size : 10,28 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 : P.K. Hopke
Publisher : Elsevier
Page : 345 pages
File Size : 20,68 MB
Release : 1991-06-03
Category : Science
ISBN : 0080868347

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This book presents the background and application of receptor models for the source identification and quantitative mass apportionment of airborne pollutants. Over the past decade, receptor models have become an accepted part of the process for developing effective and efficient air quality management plans. Information is provided on the ambient and source sampling and chemical analysis needed to provide the input data for receptor models. Commonly used models are described with examples so that the air quality specialist can see how these models are applied. Recent advances in several areas of the field are presented as well as the perspective of both U.S. Federal and State level air quality managers on how these models fit into the development of a management plan. The aim of the book is to provide a practical guide to persons who may be given the task of implementing receptor modeling as a part of some air quality management problem. The intention of all the chapter authors is to furnish both the basic information needed to begin doing receptor modeling as well as some insight into some of the problems related to the use of these models. These tools like any others used in solving complex technological problems are not a panacea, but do represent powerful aids in data analysis that can lead to insights as to how an airshed functions and thus, to effective and efficient air quality management strategies.

Author : Adrian L. Linch
Publisher : CRC Press
Page : 358 pages
File Size : 33,80 MB
Release : 2019-08-08
Category : Technology & Engineering
ISBN : 1351088858

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Personnel monitoring is a term designating the determination of the inhaled dose of an airborne toxic material of an air-mediated hazardous physical force by the continuous collection of samples in the breathing or auditory zone, or auditory zone, or other appropriate exposed body area, over a finite period of exposure time. A personnel monitor is a self-powered device worn by monitored individual to collect a representative sample of laboratory analysis, or to provide accumulated dose of instantaneous warning of immediately hazardous conditions by visible or auditory means while being worn.