Results 131 - 140 of 154

• A Comparative Evaluation of the Differential-Pressure-Based Respirable Dust Dosimeter with the Personal Gravimetric Respirable Dust Sampler in Underground Coal Mines
  1/1/2001 - Conference papers
  This paper presents the results of a side-by-side comparison of the respirable dust dosimeter and gravimetric respirable dust sampler in a controlled experimental environent in the laboratory and in underground coal mines under normal operating conditions.
• Research by NIOSH for Controlling Respirable Dust and Methane Gas on Continuous Miner Faces
  1/1/2001 - Conference papers
  The importance of controlling respirable dust and methane gas levels in underground coal mining cannot be underestimated. While respirable dust can significantly affect the occupational health of underground coal miner, methane gas accumulations pose s...
• Reducing Worker Exposure To Dust Generated During Longwall Mining
  1/1/2001 - Conference papers
  Longwall mining equipment has improved dramatically over the last 15 years. Although significant gains in longwall dust control have been made, they have been challenged by significant increases in coal extraction rates resulting in more dust being gene...
• Methods to Lower the Dust Exposure of Bag Machine Operators and Bag Stackers
  10/1/2000 - Peer reviewed journal articles
  This article reviews various dust control technologies developed over the years at the Pittsburgh Research Laboratory of the National Institute for Occupational Safety and Health (NIOSH) to provide various options and alternatives to lower bag machine o...
• NIOSH Research for Controlling Respirable Dust and Methane Gas on Continuous Miner Faces
  9/1/2000 - Conference papers
  The importance of controlling respirable dust and methane gas levels in underground coal mining cannot be underestimated. This paper reviews practical applications of water sprays and dust scrubbers to control respirable dust and methane gas on continu...
• Particulate Penetration of Porous Foam Used as a Low Flow Rate Respirable Dust Size Classifier
  7/1/2000 - Peer reviewed journal articles
  Because of the need to provide short-term or real-time estimates of worker respirable dust exposure, porous foam may be a viable classification media for a low flow rate, disposable respirable dust sampler for use in the coal mining industry.
• Laboratory Evaluation of Pressure Differential-based Respirable Dust Detector Tube
  1/1/2000 - Peer reviewed journal articles
  Assessment of exposure to occupational dusts is a first step in reducing exposures to harmful dust concentrations. A new type of respirable dust sampler was developed and compared side-by-side to personal gravimetric samplers in the laboratory.
• Field Assessment of Control Techniques and Long-Term Dust Variability for Surface Coal Mine Rock Drills and Bulldozers
  9/1/1999 - Peer reviewed journal articles
  Airborne respirable dust surveys were conducted at six surface coal mines to investigate the effectiveness of dust control methods used on rotary rock drills and bulldozers.
• Investigation of Longwall Face Ventilation Air-Splitting Methods for Improved Dust Control
  3/1/1999 - Conference papers
  Two types of airflow splitting methods for improving longwall dust control were investigated by NIOSH's Pittsburgh Research Laboratory. These methods included a transducer mesh barrier and a staged spray barrier system.
• Investigation of Coal Properties and Airborne Respirable Dust Generation
  10/1/1998 - Reports of Investigations
  Laboratory testing and results are presented where five bituminous coals were prepared and processed through a double roll crusher located in a low-velocity wind tunnel. The results indicate that a combination of several factors are associated with air...