Asbestos: Geometric mean exposures and percent exceeding designated occupational exposure limits by major industry division, MSHA and OSHA samples, 1979–2003
SIC - Standard Industrial ClassificationPEL - permissible exposure limitREL - recommended exposure limitGM - geometric meanf/cc - fibers per cubic centimeter MSHA - Mine Safety and Health AdministrationOSHA - Occupational Safety and Health Administration*MSHA PEL is 2 f/cc.
Note: The NIOSH REL is 0.1 f/cc. See appendices for source description, methods, and agents.
Source: MSHA metal/nonmetal mine data. OSHA Integrated Management Information System.
