Asbestos: Geometric mean exposures by major industry division, MSHA and OSHA samples, 1979–2003 |
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PEL - permissible exposure limitREL - recommended exposure limitf/cc - fibers per cubic centimeterMSHA - Mine Safety and Health AdministrationOSHA - Occupational Safety and Health Administration *The MSHA PEL is 2 f/cc. |
Note: See appendices for source description, methods, and agents. |
Source: MSHA metal/nonmetal mine data. OSHA Integrated Management Information System. |
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Page last modified: June 23, 2008
Page last reviewed: June 23, 2008
Content Source: National Institute for Occupational Safety and Health (NIOSH)
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