Asbestos: Geometric mean exposures by major industry division, MSHA and OSHA samples, 1979-2003
PEL - permissible exposure limitREL - recommended exposure limitf/cc - fibers per cubic centimeterM
Note: See appendices for source description, methods, and agents.
Source: MSHA metal/nonmetal mine data. OSHA Integrated Management Information System.
Reference Number: 2007F01-05
Date Posted: June 2008
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