A Personal Sampler for Assessing Inhaled Nanoparticle Exposures [2009]

Details

• Personal Author:
  Marchese A ; Prieto A ; Volckens J
• Description:
  The goal of this work was to develop an accurate, sensitive, and specific method to assess personal exposures to engineered nanoparticles. We designed and constructed a small thermal precipitator to measure human breathing-zone concentrations of airborne nanoparticles. Specifically, our approach was geared toward distinguishing engineered nanoparticles from other incidental nanoparticles (i.e., ultrafine particles) that are ubiquitous in typical workplace and environmental atmospheres. We hypothesized that engineered nanoparticles could be identified and distinguished from incidental and biogenic nanoparticles based on the use of energy-dispersive spectroscopy conducted directly on collected particles. This sampler used thermal force to capture airborne nanoparticles on transmission electron microscopy (TEM) substrates. Furthermore, by rotating several TEM substrates through the collection zone during the sampling period, we hoped to resolve an individual's exposure in time. These substrates were subsequently analyzed off-line to determine the size, shape, and chemical composition of individual particles. We will present results from initial laboratory testing, including collection efficiency as a function of particle size (5 - 250 nm), along with instrument sensitivity and specificity for identifying and quantifying concentrations of nanoparticle aerosols. [Description provided by NIOSH]
• Subjects:
  Occupational Health Particulate Matter Safety
• Keywords:
  Equipment Design Nanoparticles Particle Size Particulate Sampling Methods Samplers Sampling Equipment
• Publisher:
  American Industrial Hygiene Association
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Abstract or Summary
• Place as Subject:
  Colorado ; OSHA Region 3 ; OSHA Region 8 ; Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  17
• NIOSHTIC Number:
  nn:20057242
• Citation:
  AIHce 2009: American Industrial Hygiene Conference and Exposition, May 30 - June 4, 2009, Toronto, Canada. Fairfax, VA: American Industrial Hygiene Association, 2009 May; :17
• Federal Fiscal Year:
  2009
• NORA Priority Area:
  Manufacturing
• Performing Organization:
  Colorado State University - Fort Collins
• Peer Reviewed:
  False
• Start Date:
  20080701
• End Date:
  20110630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:e835421b20be16ec62fa5462ae77dde592d0908a0087f63d915fa1493fa4767740561aa3cd93353da023a110c7da40cca6814987f2aec81d4d6fc5c119d4d9df
• Download URL:
  https://stacks.cdc.gov/view/cdc/214660/cdc_214660_DS1.pdf
• File Type:
  [PDF - 157.53 KB ]