Work-Related Lung Disease Surveillance System (eWoRLD)
Asbestosis: Asbestos Exposure (Archive)
Asbestos: Geometric mean exposures and percent exceeding designated occupational exposure limits by MSHA metal/nonmetal district and state, MSHA samples, 1979-1999
- indicates incalculable field
PEL - permissible exposure limitREL - recommended exposure limitGM - geometric mean
Note: The MSHA PEL is 2 f/cc. The NIOSH REL is 0.1 f/cc. See appendices for source description, methods, and agents.
Source: Mine Safety and Health Administration (MSHA) metal/nonmetal mine data.
Reference Number: 2002T01-14
Date Posted: May 2003
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