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783510 
Technical Report 
Summary report: Exposure to asbestos-containing vermiculite from Libby, Montana, at 28 processing sites in the United States 
Agency for Toxic Substances and Disease Registry :: ATSDR 
2008 
U.S. Department of Health and Human Services, Agency for Toxic Substances and Disease Registry 
Atlanta, GA 
100 
English 
This report summarizes what the Agency for Toxic Substances and Disease Registry (ATSDR) and state health department partners learned during their evaluations of 28 sites that received asbestos-containing vermiculite from a mine in Libby, Montana. These 28 site evaluations focused on potential past, current, and future pathways of exposure to the asbestos associated with the Libby mine. Most of the processing facilities at these sites operated for different time periods in the past, during the 1920s to the early 1990s. The purpose of the report is (1) to summarize what we learned during detailed site evaluations, and (2) to provide recommendations that local, state, and federal agencies can use to address similar sites.