Aerodynamic Size Separation of Glass Fiber Aerosols

Details

• Personal Author:
  Barone T ; Ku BK ; Kulkarni P ; Lee T ; Mischler, Steven E. ; Walker R
• Description:
  The objective of this study was to investigate the efficacy of an aerodynamic separation scheme for obtaining aerosols with nearly monodisperse fiber lengths as test samples for mechanistic toxicological evaluations. The approach involved the separation of aerosolized glass fibers using an Aerodynamic Aerosol Classifier (AAC) or a multi-cyclone sampling array, followed by the collection of separated samples on filter substrates, and the measurement of each sample fiber length distribution. A glass fiber aerosol with a narrow range of aerodynamic sizes was selected and sampled with the AAC or multi-cyclone sampling array in two separate setups. The fiber length and diameter were measured using a field emission scanning electron microscope. The glass fiber aerosol was separated in distinct groups of eight with the AAC and of four with the multi-cyclone sampling array. The geometric standard deviations of the fiber length distributions of the separated aerosols ranged from 1.49 to 1.69 for the AAC and from 1.6 to 1.8 for multi-cyclone sampling array. While the separation of glass fiber aerosols with an AAC is likely to produce two different length fiber groups and the length resolution may be acceptable, the overall mass throughput of these separation schemes is limited. [Description provided by NIOSH]
• Subjects:
  Aerosols Air Pollutants, Occupational Asbestos Dust Environmental Exposure Glass Inorganic Chemicals Minerals Mining Occupational Health Particulate Matter Safety Toxicology

  More +
• Keywords:
  Aerosol Particles Airborne Fibers Airborne Particles Airborne Particulates Author Keywords: Aerodynamic Aerosol Classifier Elongate Mineral Particles Environmental Exposure Fibrous Glass Fibrous Glass Dust Filters Mine Workers Sampling

  More +
• Series:
  Mining Publications
• ISSN:
  1545-9624
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 3 ; OSHA Region 5 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division ; HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  301-311
• Volume:
  17
• Issue:
  6
• NIOSHTIC Number:
  nn:20059419
• Citation:
  J Occup Environ Hyg 2020 Jun; 17(6):301-311
• Contact Point Address:
  Taekhee Lee, Dust, Ventilation, and Toxic Substances Branch, Pittsburgh Mining Research Division, National Institute for Occupational Safety and Health, 626 Cochrans Mill Road, Pittsburgh, PA 15236
• Email:
  fwc8@cdc.gov
• CAS Registry Number:
  Amphibole-group minerals (CAS RN 1318-09-8) ; Asbestos (CAS RN 1332-21-4)
• Federal Fiscal Year:
  2020
• NORA Priority Area:
  Mining
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Occupational and Environmental Hygiene
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6f9ac8ae6e1b8cada8ddb5ddea13a6a8327cbabf558ae112090b86040c2f4d54256c532a4394c8af49e82d0079e6a202d4016ccb76c910f773d8c70aa9c122c1
• Download URL:
  https://stacks.cdc.gov/view/cdc/215300/cdc_215300_DS1.pdf
• File Type:
  [PDF - 2.81 MB ]