Results 11 - 15 of 15

• Silica Dust Sources in Underground Metal/Nonmetal Mines - Two Case Studies
  2/1/2002 - Conference papers
  The ultimate goal of this research is to develop control technologies to reduce worker exposure to respirable silica dust. Dust surveys were conducted in an underground limestone and gold mine to investigate silica dust sources, generation levels, and ...
• An Evaluation of Methods for Controlling Silica Dust Exposures on Roof Bolters
  2/1/2002 - Conference papers
  This paper examines methods for limiting occupational silica exposures for roof bolting personnel in underground coal mining. It also evaluates a metal rake, a flexible insert, and a rigid insert for cleaning the roof bolter dust collector box.
• Reducing Enclosed Cab Drill Operator's Respirable Dust Exposure at Surface Coal Operation With a Retrofitted Filtration and Pressurization System
  2/1/2002 - Conference papers
  This report discusses a cooperative research study performed on a surface drill retrofitted with a new pressurization and filtration system. Respirable dust concentrations were substantially reduced from 0.64 mg/m3 during pre-testing to 0.05 mg/m3 duri...
• Laboratory Evaluation of a Canopy Air Curtain for Controlling Occupational Exposures of Roof Bolters
  6/1/2001 - Conference papers
  Testing at NIOSH assessed the effectiveness of a canopy air curtain for controlling occupational exposures to respirable silica and coal dusts.
• A Review of Occupational Silica Exposures on Continuous Mining Operations
  1/1/2000 - Conference papers
  A Review of Occupational Silica Exposures on Continuous Mining Operations.