Asbestos: Geometric mean exposures and percent exceeding designated occupational exposure limits by MSHA metal/nonmetal district and state, MSHA samples, 1979-2003
- indicates incalculable field.PEL - permissible exposure limitREL - recommended exposure limitGM
Note: The MSHA PEL is 2 f/cc. The NIOSH REL is 0.1 f/cc. See appendices for source description and methods.
Source: MSHA metal/nonmetal mine data.
Reference Number: 2007T01-14
Date Posted: June 2008
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