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Open-File Report 2009-1242

Prepared for the U.S. Environmental Protection Agency in Cooperation with U.S. EPA National Enforcement Investigations Center

Particle Size Characterization of Water-Elutriated Libby Amphibole 2000 and RTI International Amosite

By Heather A. Lowers and Amy M. Bern

Abstract

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This report presents data on particle characterization analyzed by scanning electron microscopy on Libby amphibole collected by the U.S. Geological Survey in 2000 (LA2000) and amosite material collected by RTI International (RTI amosite). The particle characterization data were generated to support a portion of the Libby Action Plan. Prior to analysis, the raw LA2000 and RTI amosite materials were subjected to a preparation step. Each sample was water-elutriated by U.S. Environmental Protection Agency (USEPA) Office of Research and Development, Research Triangle Park using the methods generally described in another published report and then delivered to the U.S. Geological Survey, Denver Microbeam Laboratory for analysis. Data presented here represent analyses performed by the U.S. Geological Survey, Denver Microbeam Laboratory and USEPA National Enforcement Investigations Center. This report consists of two Excel spreadsheet files developed by USEPA, Region 8 Superfund Technical Assistance Unit and describe the particle size characterization of the LA2000 and RTI amosite, respectively. Multiple tabs and data entry cells exist in each spreadsheet and are defined herein.

First posted October 23, 2009

  • Downloads Directory
    Contains two Excel spreadsheet files developed by USEPA, Region 8 Superfund Technical Assistance Unit.

For additional information contact:

U.S. Geological Survey
Central Region Mineral Resources Science Center
Box 25046, MS-973
Denver Federal Center
Denver, CO 80225

http://minerals.cr.usgs.gov/

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.


Suggested citation:

Lowers, H.A., and Bern, A.M, 2009, Particle size characterization of water-elutriated Libby amphibole 2000 and RTI international amosite: U.S. Geological Survey Open-File Report 2009–1242, 3 p.


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