Asbestos: Number of samples, geometric mean exposures, and percent exceeding designated occupational exposure limits by industry, MSHA and OSHA samples, 1995-2003
CIC - Census Industry Code PEL - permissible exposure limit REL - recommended exposure limit GM - ge
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.
Reference Number: 2007T01-13
Date Posted: June 2008