Respirable coal mine dust: Geometric mean exposures by state, MSHA inspector and mine operator samples, 1979–2003 |
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REL - recommended exposure limitmg/m3 - milligrams per cubic meterMRE - Mining Research EstablishmentMSHA - Mine Safety and Health Administration |
Note: 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 appendices for source description, methods, and agents. |
Source: MSHA coal mine inspector and mine operator dust data. |
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Page last modified: June 23, 2008
Page last reviewed: June 23, 2008
Content Source: National Institute for Occupational Safety and Health (NIOSH)
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