A wind tunnel test of newly developed personal bioaerosol samplers

Details

• Personal Author:
  Cheng YS ; Sigaev VI ; Su W-C ; Tolchinsky AD
• Description:
  In this study the performance of two newly developed personal bioaerosol samplers was evaluated. The two test samplers are cyclone-based personal samplers that incorporate a recirculating liquid film. The performance evaluations focused on the physical efficiencies that a personal bioaerosol sampler could provide, including aspiration, collection, and capture efficiencies. The evaluation tests were carried out in a wind tunnel, and the test personal samplers were mounted on the chest of a full-size manikin placed in the test chamber of the wind tunnel. Monodisperse fluorescent aerosols ranging from 0.5 to 20 microm were used to challenge the samplers. Two wind speeds of 0.5 and 2.0 m/sec were employed as the test wind speeds in this study. The test results indicated that the aspiration efficiency of the two test samplers closely agreed with the ACGIH inhalable convention within the size range of the test aerosols. The aspiration efficiency was found to be independent of the sampling orientation. The collection efficiency acquired from these two samplers showed that the 50% cutoff diameters were both around 0.6 microm. However the wall loss of these two test samplers increased as the aerosol size increased, and the wall loss of PAS-4 was considerably higher than that of PAS-5, especially in the aerosol size larger than 5 microm, which resulted in PAS-4 having a relatively lower capture efficiency than PAS-5. Overall, the PAS-5 is considered a better personal bioaerosol sampler than the PAS-4. [Description provided by NIOSH]
• Subjects:
  Aerosols Air Pollutants, Occupational Environmental Exposure Environmental Health Environmental Monitoring Hazardous Substances Inhalation Exposure Irritants Microbiology Occupational Health Particulate Matter Respiratory System Respiratory Tract Diseases Safety

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• Keywords:
  Air-monitoring Airborne-particles Analytical-processes Environmental-exposure Environmental-health Exposure-levels Health-hazards Inhalants Inhalation-studies Microorganisms Monitoring-systems Respiration Respiratory-irritants Respiratory-system-disorders Samplers

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• ISSN:
  1096-2247
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  New Mexico ; OSHA Region 6
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  62
• Issue:
  7
• NIOSHTIC Number:
  nn:20041283
• Citation:
  J Air Waste Manage Assoc 2012 Jul; 62(7):828-837
• Contact Point Address:
  Wei-Chung Su, Lovelace Respiratory Research Institute, 2425 Ridgecrest Dr. SE, Albuquerque, NM 87108
• Email:
  wsu@LRRI.org
• Federal Fiscal Year:
  2012
• Performing Organization:
  Lovelace Biomedical & Environmental Research, Albuquerque, New Mexico
• Peer Reviewed:
  True
• Start Date:
  20070901
• Source Full Name:
  Journal of the Air and Waste Management Association
• End Date:
  20110831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:37da938d3de06c451b29f987df687baac7245bfa5e0dd4ba3fd88fdaf31f6efcf6447169eb78a10e3a88d988709a397a634bfa110cf2d9013420ff1907b72d84
• Download URL:
  https://stacks.cdc.gov/view/cdc/193886/cdc_193886_DS1.pdf
• File Type:
  [PDF - 903.50 KB ]