Pneumoconiotic agents: Percent of exposures exceeding the NIOSH recommended exposure limits by state, MSHA metal/nonmetal mine samples, 1979-2003
REL - recommended exposure limit MSHA - Mine Safety and Health Administration
Note: See appendices for source description, methods, and agents.
Source: MSHA metal/nonmetal mine data
Reference Number: 2008-325
Date Posted: June 2008