Work-Related Lung Disease Surveillance System (eWoRLD)
Pneumoconiotic agents: Percent of exposures exceeding designated occupational exposure limits by type of mine, MSHA inspector and mine operator samples, 1979-1999
- indicates incalcuable field
PEL - permissible exposure limitREL - recommended exposure limitSIC - 1987 Standard Industrial Classification
Note: The NIOSH REL for respirable coal mine dust of 1.0 mg/m3 was adopted in September 1995. The MSHA respirable coal mine quartz exposure data and the NIOSH REL for respirable quartz cannot be compared to each other because they are based on different sampling criteria. See appendices for source description, methods, and agents.
Source: Mine Safety and Health Administration (MSHA) metal/nonmetal mine data and coal mine inspector and mine operator dust and quartz data.
Reference Number: 2002T06-15a
Date Posted: May 2003
- Centers for Disease Control and Prevention
- National Institute for Occupational Safety and Health (NIOSH)
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