Results 41 - 50 of 63

• Field Evaluation of a Passive Diesel Particulate Filter at a Limestone Mine
  4/1/2009 - Peer reviewed journal articles
  In this study, the operators of a limestone mine retrofitted a loader used for clean-up operations with a passive DPF that was lightly catalyzed and used a fuel additive to initiate regeneration at low exhaust temperatures.
• Identifying Sources of Respirable Quartz and Silica Dust in Underground Coal Mines in Southern West Virginia, Western Virginia, and Eastern Kentucky
  4/1/2009 - Peer reviewed journal articles
  This paper discusses the geochemical analyses which were applied in an effort to identify the specific source rock of respirable quartz dust in coal mines.
• Horizontal Air-Blocking Shelf Reduces Dust Leakage from Surface Drill Shroud
  12/1/2008 - Peer reviewed journal articles
  This paper describes a recent research project initiated by NIOSH which identified improvement of the drill shroud design as one of its main objectives for reducing the exposure of surface miners to respirable dust.
• Effects of Sampling Artifacts on Occupational Samples of Diesel Particulate Matter
  7/1/2008 - Peer reviewed journal articles
  In this study, NIOSH investigated the effects of adsorption artifact on diesel particulate matter samples from occupational settings.
• Field Measurement of Diesel Particulate Matter Emissions
  3/1/2008 - Peer reviewed journal articles
  This paper describes a quick and economic method which has been developed to estimate engine particulate emission levels.
• Portable XRF Analysis of Occupational Air Filter Samples from Different Workplaces Using Different Samplers: Final Results, Summary and Conclusions
  11/1/2007 - Peer reviewed journal articles
  This paper concludes a five-year program on research into the use of a portable X-ray fluorescence (XRF) analyzer for analyzing lead in air sampling filters from different industrial environments, including mining, manufacturing and recycling.
• Role of Lubrication Oil in Particulate Emissions from a Hydrogen-Powered Internal Combustion Engine
  10/1/2007 - Peer reviewed journal articles
  The primary goal of this study was to investigate the formation of combustion-generated particles derived from lubrication oil in the absence of fuel-produced soot.
• Real-Time Estimation of Elemental Carbon Emitted from a Diesel Engine
  8/1/2007 - Peer reviewed journal articles
  This paper describes a simple, inexpensive, dependable, and field portable method for estimating the mass concentration of elemental carbon exiting the tailpipe of a diesel engine using a direct reading photometer in underground mines.
• Explosion Temperatures and Pressures of Metals and Other Elemental Dust Clouds
  7/1/2007 - Peer reviewed journal articles
  NIOSH's Pittsburgh Research Laboratory conducted a study of the explosibility of various metals and elemental dusts, focusing on explosion temperatures. The data will aid in evaluating explosion hazards in the minerals/metals processing industries.
• The Fate of Metal (Fe) During Diesel Combustion: Morphology, Chemistry, and Formation Pathways of Nanoparticles
  4/1/2007 - Peer reviewed journal articles
  This report describes an investigation in which NIOSH used iron-doped diesel fuel to generate metal-bearing diesel particles and a subsequent analysis of the particles using transmission electron microscopy (TEM) and energy-dispersive spectroscopy (EDS).