Characterization of Size-Fractionated World Trade Center Dust and

Chapter 7

Downloaded by UNIV OF CALIFORNIA SAN DIEGO on February 25, 2016 | http://pubs.acs.org Publication Date: November 15, 2005 | doi: 10.1021/bk-2006-0919.ch007

Characterization of Size-Fractionated World Trade Center Dust and Estimation of Relative Dust Contribution to Ambient Particulate Concentrations 1

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Polina B. Maciejczyk , Rolf L. Zeisler , Jing-Shiang Hwang , George D. Thurston , and Lung Chi Chen 1

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Department of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10950 National Institute of Standards and Technology, Gaithersburg, MD 20899 Institute of Statistical Science, Academia Sinica, Taiwan

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After the collapse of the World Trade Center (WTC), bulk samples of settled dust were collected close to the WTC. Each sample was separated into four fractions according to aerodynamic particle size. All samples