Asbestos: Number of samples, geometric mean exposures, and percent exceeding designated occupational exposure limits by industry, MSHA and OSHA samples, 1995–2003 |
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CIC - Census Industry CodePEL - permissible exposure limitREL - recommended exposure limit GM - geometric meanMSHA - Mine Safety and Health AdministrationOSHA - Occupational Safety and Health Administration f/cc - fibers per cubic centimeter * includes industries with no samples exceeding the REL or industries with less than 10 samples. |
Note: The MSHA PEL is 2 f/cc. The OSHA PEL is 2 f/cc before July 21, 1986, 0.2 f/cc from July 21, 1986 to October 10, 1994, and 0.1 f/cc after October 10, 1994. The NIOSH REL is 0.1 f/cc. See appendices for source description and methods. |
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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