Results 21 - 30 of 67

• The Effects of Ventilation Controls and Environmental Cabs on Diesel Particulate Matter Concentrations in Some Limestone Mines
  6/1/2008 - Conference papers
  In this investigative study NIOSH measured for sub-micrometer elemental carbon (EC) using two types of control technologies (ventilation and cabs) which are being implemented in limestone mines.
• Analysis of Particulate Contamination in Personal Dust Monitor Sampling
  6/1/2008 - Conference papers
  This report examines the effect of oversize particles, cyclone inversion, and cleaning procedures on the Personal Dust Monitor (PDM).
• Near Real Time Monitoring of Diesel Particulate Matter in Underground Mines
  6/1/2008 - Conference papers
  This paper describes a portable device developed by NIOSH for measuring levels of elemental carbon in real time.
• Improving the Performance of Fan-Powered Dust Collectors in Stone-Cutting Applications
  6/1/2008 - Conference papers
  The objective of the research was to cost-effectively increase the air cleaning volume and improve dust capture efficiency of an off-the-shelf dust collector with a larger motor and blower.
• Using Laser Absorption Techniques to Monitor Diesel Particulate Matter Exposure in Underground Stone Mines
  10/1/2007 - Conference papers
  This paper describes research into a laser absorption technique that enables one to measure elemental carbon concentration in diesel particulate matter in near real time.
• Dust Control Practices for Underground Coal Mining
  9/1/2007 - Conference papers
  This paper summarizes existing dust control technologies routinely being used in underground coal mine operations, and provides a review of new controls that are being pursued.
• Improving Silica Dust Controls for Metal/Nonmetal Mining Operations in the United States
  4/1/2007 - Conference papers
  NIOSH researchers are improving protection provided by enclosed cabs on mining equipment, reducing dust generation from surface drills, reducing dust levels in iron ore operations, and developing a new method to clean dust from soiled clothes.
• Explosion Temperatures of Metals and Other Elemental Dust Clouds
  8/1/2006 - Conference papers
  NIOSH conducted a study of the explosibility of various metals and other elemental dusts dispersed in air to aid in understanding dust cloud combustion and in evaluating the explosion hazards in the minerals and metals processing industries.
• Post-Explosion Observations of Experimental Mine and Laboratory Coal Dust Explosions
  8/1/2006 - Conference papers
  NIOSH and MSHA conducted joint research on dust explosions by studying post-explosion dust samples of high and low volatile bituminous coals collected from full-scale explosions at NIOSH's Lake Lynn Experimental Mine and from laboratory explosions.
• The Effects of Water Emulsified Fuel on Diesel Particulate Matter Concentrations in Underground Mines
  6/1/2006 - Conference papers
  The ambient diesel particulate matter (DPM) concentrations (at the intakes and exhausts of the mine) was evaluated as an entire vehicle fleet of a stone mine switched from using 35% biodiesel to a water-emulsified fuel (PuriNOx).