Comparison of surface-coal-mine respirable dust concentrations measured with MRE and personal gravimetric sampling equipment

Technical Report · Mon Dec 31 23:00:00 EST 1979

DOI:https://doi.org/10.2172/6008915· OSTI ID:6008915

Alvarez, J. J.; Tomb, T. F.; Gadomski, R. R.; Custer, J. L.

All coal mine respirable dust concentrations measured with approved personal respirable dust sampling instruments are converted to equivalent MRE sampler concentrations by multiplying by the factor 1.38. This conversion factor was determined from comparison measurements made in underground coal mine environments. This report describes the results of the Mine Safety and Health Administration's (MSHA) sampling of surface mining operations to determine if 1.38 is a valid factor for converting surface coal mine dust samples collected with approved personal samplers to equivalent MRE concentrations. Comparative measurements were obtained with the MRE and personal gravimetric dust samplers at a variety of surface mining operations and coal preparation plants. Regression analysis was used to derive a relationship between measurements obtained with the MRE and personal respirable dust samplers. The factor derived for surface measurements was within 9 percent of that derived for underground measurements. It was concluded that 1.38 is the most applicable factor to use for converting personal respirable dust measurements to equivalent MRE measurements.

• Research Organization: Mine Safety and Health Administration, Arlington, VA (USA)
• OSTI ID: 6008915
• Report Number(s): MSHA/IR-1120; ON: DE83902837
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
016000 -- Coal
Lignite
& Peat-- Health & Safety
COAL MINING
COMPARATIVE EVALUATIONS
CORRECTIONS
DUSTS
EQUIPMENT
MATHEMATICS
MEASURING INSTRUMENTS
MEASURING METHODS
MINING
MINING EQUIPMENT
REGRESSION ANALYSIS
SAMPLING
STATISTICS
SURFACE MINING