Asbestos: Geometric mean exposures by major industry division, MSHA and OSHA samples, 1979-2003
PEL - permissible exposure limit REL - recommended exposure limit f/cc - fibers per cubic centimeter M
Note: See appendices for source description, methods, and agents.
Source: MSHA metal/nonmetal mine data. OSHA Integrated Management Information System.
Reference Number: 2008-129
Date Posted: June 2008
- Page last reviewed: June 1, 2008
- Page last updated: June 1, 2008
- Content source: National Institute for Occupational Safety and Health (NIOSH)
- Page maintained by: Respiratory Health Division (RHD), Surveillance Branch