Air Particle Measurement

This digital document is an article from Journal of the Air & Waste Management Association, published by Air and Waste Management Association on October 1, 2010. The length of the article is 16754 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.Citation DetailsTitle: Updating the conceptual model for fine particle mass emissions from combustion systems.(COMBUSTION AEROSOL 2009)(Report)Author: Allen L. RobinsonPublication: Journal of the Air & Waste Management Association (Magazine/Journal)Date: October 1, 2010Publisher: Air and Waste Management AssociationVolume: 60 Issue: 10 Page: 1204(19)Article Type: ReportDistributed by Gale, a part of Cengage Learning

Published on: 2010-10-01 Released on: 2010-11-08 Format: HTML Binding: Digital 56 pages

Excerpt. © Reprinted by permission. All rights reserved. ABSTRACT Atmospheric transformations determine the contribution of emissions from combustion systems to fine particulate matter (PM) mass. For example, combustion systems emit vapors that condense onto existing particles or form new particles as the emissions are cooled and diluted. Upon entering the atmosphere, emissions are exposed to atmospheric oxidants and sunlight, which causes them to evolve chemically and physically, generating secondary PM. This review discusses these transformations, focusing on organic PM. Organic PM emissions are semi-volatile at atmospheric conditions and thus their partitioning varies continuously with changing temperature and concentration. Because organics contribute a large portion of the PM mass emitted by most combustion sources, these emissions cannot be represented using a traditional, static emission factor. Instead, knowledge of...