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Design and Development of a Portable Electrostatic Bioaerosol Sampler (PEBS) with High Sampling Flow Rate



Details

  • Personal Author:
  • Description:
    The objective of this exploratory research is to develop a novel portable electrostatic bioaerosol sampler (PEBS), where bioaerosols are drawn into an open channel collector, electrically charged and deposited onto a removable plate covered with a superhydrophobic substance. The new sampler will allow a more accurate monitoring of personal exposures to even low microorganism concentrations and thus improve the ability to identify the exposure risks and protect affected populations. Since this personal bioaerosol sampler will be light, self-contained and battery-operated, it will be easy to wear and apply for occupational and environmental studies and field deployments. The prototype of PEBS was designed and optimized using computational fluid dynamics (CFD) simulation. It has a shape of a cylinder of 1 inch in diameter and is made of static dissipative material. The collection chamber is split in two by a stainless steel rectangle collection plate (1×1.75 inches) and each half has a charger (e.g., carbon fiber) located 0.75 inches downstream of the collection plate front; this configuration allows collection of duplicate samples. The sampler features a 3D-printed air blender positioned at its inlet to improve mixing of the incoming aerosol particles with ions. When the sampler was tested at different sampling flow rates (10 to 30 L/min) and collection/charging voltages (-3 to -5 kV) with 1 micron polystyrene latex particles, it showed collection efficiency as high as 90%. In the next stage, the sampler will be further modified to improve its performance at higher flow rates and then it will be challenged with bacteria and fungi. [Description provided by NIOSH]
  • Subjects:
  • Keywords:
  • Publisher:
    American Association for Aerosol Research
  • Document Type:
    Text
  • Funding:
    Grant
  • Genre:
    Abstract or Summary
  • Place as Subject:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • NIOSHTIC Number:
    nn:20055280
  • Citation:
    Proceedings of the AAAR 34th Annual Conference, October 12-16, 2015, Minneapolis, Minnesota. Mount Laurel, NJ: American Association for Aerosol Research, 2015 Oct; :2BA.8
  • Federal Fiscal Year:
    2016
  • Performing Organization:
    Rutgers, The State University of New Jersey, Piscataway
  • Peer Reviewed:
    False
  • Start Date:
    20140901
  • Source Full Name:
    Proceedings of the AAAR 34th Annual Conference, October 12-16, 2015, Minneapolis, Minnesota
  • End Date:
    20180131
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:45d6366518dd9cb0daaf964ea86040764c0fd06afe6144cafd2742353c32f95d50bb37edec8508df5b27148ef00a186a699eb4821420db133727788b50616df1
  • Download URL:
  • File Type:
    Filetype[PDF - 131.44 KB ]
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