Characterization of freshly generated airborne quartz dust

Details

• Personal Author:
  Chander S ; Hogg R ; Polat M
• Description:
  A fresh dust generator was designed and built in order to study the agglomeration behavior and other characteristics of freshly generated airborne dust. The size distribution of the freshly generated quartz airborne dust produced by the generator was measured both directly in air and after dispersion in water. It was observed that same dust particles had an apparently coarser size distribution in air than in water, suggesting possible agglomeration of the dust particles. It was also observed that the size distribution obtained by a cascade impactor was very similar to the liquid dispersed size distribution, implying deagglomeration by the impactor. The agglomeration was confirmed by microscopic observations of particles in air and those collected on a microscope slide. The extent of agglomeration played a decisive role on the fraction of the dust actually becoming airborne. It was also found that contamination of the airborne dust by the rolls of the crusher was almost twice as much as that of the product. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Dust Occupational Health Particulate Matter Quartz Safety Silicon Dioxide
• Keywords:
  Airborne Dusts Airborne Particles Airborne Particulates Particle Diameter Particle Size Particulate Dust Particulates Quartz Dust Silica Dusts
• ISBN:
  9780873350983
• Publisher:
  Society for Mining, Metallurgy, and Exploration, Inc.
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Proceedings
• Place as Subject:
  Colorado ; OSHA Region 3 ; OSHA Region 8 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  267-274
• NIOSHTIC Number:
  nn:20049435
• Citation:
  Respirable dust in the mineral industries, proceedings of the 3rd symposium on respirable dust in the mineral industries, October 17-19, 1990, Pittsburgh, Pennsylvania. Frantz RL, Ramani RV, eds. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 1991 Jan; :267-274
• Contact Point Address:
  M. Polat, Mineral Processing Section, The Pennsylvania State University, University Park, PA 16802
• Editor(s):
  Frantz RL; Ramani RV
• Federal Fiscal Year:
  1991
• Performing Organization:
  Pennsylvania State University
• Peer Reviewed:
  False
• Source Full Name:
  Respirable dust in the mineral industries, proceedings of the 3rd symposium on respirable dust in the mineral industries, October 17-19, 1990, Pittsburgh, Pennsylvania
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5cc3472c5a2b8308396798343cad313c6811d88353fed9850d10b73b604a572c67a99ace328ce64720a4e73774f8dcefb3a419547879d252f5ced08ad8274865
• Download URL:
  https://stacks.cdc.gov/view/cdc/203880/cdc_203880_DS1.pdf
• File Type:
  [PDF - 4.73 MB ]