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The National Institute for Occupational Safety and Health (NIOSH)





Mining Publication: Benchmarking Longwall Dust Control Technology and Practices
Keywords: Coal dust Dust control Longwall mining Respirable dust level Sampling
Original creation date: September 2011
Authors: JP Rider, JF Colinet
Peer Reviewed Journal Article - September 2011
Download PDF Document (0.98 MB)
NIOSHTIC2 Number: 20039782
Min Eng 2011 Sep; 63(9):74-80
Significant advances in longwall mining technology and equipment have occurred over the last decade. By the late 1990s, longwall mine output accounted for 40% of all underground output in the U.S. and today longwall mines account for approximately 50% of coal produced underground in the United States. A 51% increase in average shift production rates has occurred over the last 15 years. This increased longwall productivity has meant that far more dust is being produced and controlling respirable coal dust presents an ongoing challenge for coal mine operators. The National Institute for Occupational Safety and Health (NIOSH) conducted a series of benchmark surveys at longwall operations across the country to identify current operating practices and the types of controls being used. Gravimetric and instantaneous dust sampling was completed to quantify the dust levels generated by major sources on the longwall section and to identify different control technologies in use today. Substantial reductions in dust levels were realized at sampling locations on the face when compared with longwall surveys conducted in the 1990s. Results from the underground dust surveys and current longwall dust control technology and operating practices will be discussed.
Image of publication Benchmarking Longwall Dust Control Technology and PracticesPeer Reviewed Journal Article - September 2011
Download PDF Document (0.98 MB)
NIOSHTIC2 Number: 20039782
Min Eng 2011 Sep; 63(9):74-80
See Also
Best Practices for Dust Control in Coal Mining
Controlling Dust Exposures in Longwall Mining Utilizing A Simple Barrier
Determining the Spatial Variability of Personal Sampler Inlet Locations
Evaluation of the Approach to Respirable Quartz Exposure Control in U.S. Coal Mines
Improved Dust Control Methods for Longwall Mining
Laboratory Testing To Quantify Dust Entrainment During Shield Advance
Lowering Respirable Dust at an Iron Ore Concentrator Plant Through Improved Ventilation Practices
Performance of a Light Scattering Dust Monitor at Various Air Velocities: Results of Sampling in the Active Versus the Passive Mode
Respirable Dust
Rock Dusting Considerations in Underground Coal Mines
Status of a Tapered Element, Oscillation Microbalance-Based Continuous Respirable Coal Mine Dust Monitor
Page last reviewed: April 25, 2017
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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