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Respirable coal mine dust: Geometric mean exposures by type of mine, MSHA inspector and mine operator samples, 1979-2003

Respirable coal mine dust: Geometric mean exposures by type of mine, MSHA inspector and mine operator samples, 1979-2003

PEL - permissible exposure limit    REL - recommended exposure limit    mg/m3 - milligrams per cubic meter    MRE - Mining Research Establishment    MSHA - Mine Safety and Health Administration

Note:

For respirable coal mine dust containing ≤5% quartz, the MSHA PEL is 2 mg/m3 MRE; for respirable coal mine dust containing >5% quartz, the MSHA PEL is [(10 mg/m3 MRE) / (% quartz)].

The NIOSH REL of 1 mg/m3 MRE for respirable coal mine dust was adopted in September of 1995. Geometric means are reported in MRE equivalent.

See Appendix for more information.

Source:

MSHA coal mine inspector and mine operator dust data

Citation:

NIOSH 2008. Work-Related Lung Disease Surveillance System (eWoRLD). 2008-170 U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Respiratory Health Division, Morgantown, WV. Available at: <https://wwwn.cdc.gov/eworld/Data/170> September 20, 2017.

Reference Number: 2008-170

Date Posted: June 2008

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