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 July 1, 2009. The length of the article is 23877 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: Surface-level fine particle mass concentrations: from hemispheric distributions to megacity sources.(REVIEW PAPER)(Report)Author: George M. HidyPublication: Journal of the Air & Waste Management Association (Magazine/Journal)Date: July 1, 2009Publisher: Air and Waste Management AssociationVolume: 59 Issue: 7 Page: 770(20)Article Type: ReportDistributed by Gale, a part of Cengage Learning

Published on: 2009-07-01 Released on: 2009-07-23 Format: HTML Binding: Digital 80 pages

Excerpt. © Reprinted by permission. All rights reserved. ABSTRACT Since 1990, basic knowledge of the "chemical climate" of fine particles, has greatly improved from Junge's compilation from the 1960s. A worldwide baseline distribution of fine particle concentrations on a synoptic scale of approximately 1000 km can be estimated at least qualitatively from measurements. A geographical distribution of fine particle characteristics is deduced from a synthesis of a variety of disparate data collected at ground level on all continents, especially in the northern hemisphere. On the average, the regional mass concentrations range from 1 to 80 [mu]g/[m.sup.3], with the highest concentrations in regions of high population density and industrialization. Fine particles by mass on a continental and hemispheric spatial scale are generally dominated...

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