Development of portable aerosol mobility spectrometer for personal and mobile aerosol measurement

Details

• Personal Author:
  Fukushima N ; Kulkarni P ; Qi C
• Description:
  We describe development of a portable aerosol mobility spectrometer (PAMS) for size distribution measurement of submicrometer aerosol. The spectrometer is designed for use in personal or mobile aerosol characterization studies and measures approximately 22.5×22.5×15 cm and weighs about 4.5 kg including the battery. PAMS uses electrical mobility technique to measure number-weighted particle size distribution of aerosol in the 10-855 nm range. Aerosol particles are electrically charged using a dual-corona bipolar corona charger, followed by classification in a cylindrical miniature differential mobility analyzer. A condensation particle counter is used to detect and count particles. The mobility classifier was operated at an aerosol flow rate of 0.05 L/min, and at two different user-selectable sheath flows of 0.2 L/min (for wider size range 15-855 nm) and 0.4 L/min (for higher size resolution over the size range of 10.6-436 nm). The instrument was operated in voltage stepping mode to retrieve the size distribution in approximately 1-2 min. Sizing accuracy and resolution were probed and found to be within the 25% limit of NIOSH criterion for direct-reading instruments. Comparison of size distribution measurements from PAMS and other commercial mobility spectrometers showed good agreement. The instrument offers unique measurement capability for on-person or mobile size distribution measurement of ultrafine and nanoparticle aerosol. [Description provided by NIOSH]
• Subjects:
  Aerosols Air Movements Air Pollutants, Occupational Occupational Health Particulate Matter Safety
• Keywords:
  Aerosol Particles Aerosol Sampling Airborne Particles Air Flow Air Samplers Analytical Instruments Direct-reading Methods Electrical Charge Equipment Design Measurement Equipment Mobile Equipment Nanoparticles Nanoscale Particle Counters Particle Size Particle Size Analysis Performance Capability Samplers Sampling Equipment Sizing Spectroscopes Ultrafine Particles

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• ISSN:
  0278-6826
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  50
• Issue:
  11
• NIOSHTIC Number:
  nn:20048730
• Citation:
  Aerosol Sci Technol 2016 Nov; 50(11):1167-1179
• Contact Point Address:
  Pramod Kulkarni, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Cincinnati, OH 45226, USA
• Email:
  PSKulkarni@cdc.gov
• Federal Fiscal Year:
  2017
• NORA Priority Area:
  Manufacturing
• Peer Reviewed:
  True
• Source Full Name:
  Aerosol Science and Technology
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:fe2124a0a3bee479b956cf394399ba07c3496040460287db6700acf162203002593bc80802c30fa3f198efde80427372389efc203948f0f0e41a1fb51da3d910
• Download URL:
  https://stacks.cdc.gov/view/cdc/203411/cdc_203411_DS1.pdf
• File Type:
  [PDF - 1.54 MB ]