Respirable quartz: Geometric mean metal/nonmetal mining exposures by state, MSHA samples, 1979-2003
mg/m3 - milligrams per cubic meter MSHA - Mine Safety and Health Administration
Note: See appendices for source description, methods, and agents.
Source: MSHA metal/nonmetal mine data.
Reference Number: 2008-308
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