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Open-File Report 2005–1165
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Particle Atlas of World Trade Center Dust

By Heather A. Lowers and Gregory P. Meeker

The United States Environmental Protection Agency (EPA) has begun a reassessment of the presence of World Trade Center (WTC) dust in residences, public buildings, and office spaces in New York City, New York. Background dust samples collected from residences, public buildings, and office spaces will be analyzed by multiple laboratories for the presence of WTC dust. Other laboratories are currently studying WTC dust for other purposes, such as health effects studies. To assist in inter-laboratory consistency for identification of WTC dust components, this particle atlas of phases in WTC dust has been compiled.

This work was funded by the U.S. Geological Survey

Version 1.0

Posted May 2005

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