Physical and Chemical Characterization of Asphalt (Bitumen) Paving Exposures

Details

• Personal Author:
  Hanley, Kevin W. ; Herrick, Robert F. ; McClean MD ; Meeker JD ; Zwack, Leonard M.
• Description:
  The purpose of this research was to characterize the physical and chemical properties of asphalt ( bitumen) fume and vapor in hot mix asphalt roadway paving operations. Area and personal air samples were taken using real-time equipment and extractive sampling and analytical methods to determine worker asphalt exposure, as well as to characterize the properties of the particulate and vapor phase components. Analysis of personal inhalation and dermal samples by gas chromatography/ mass spectroscopy showed that the polycyclic aromatic hydrocarbon profile is dominated by compounds with molecular weights below 228, and that substituted and heterocyclic polycyclic aromatic hydrocarbons comprised approximately 71% of the detectable mass concentration ( vapor and particulate combined). Principal components analysis shows that the polycyclic aromatic hydrocarbons with molecular weights greater than 190 are the driving force behind the polycyclic aromatic compound exposures measured for the dermal and particulate phases; there was no clear trend for the vapor phase Most of the aerosol particles are fine ( mass median aerodynamic diameter 1.02 mu m; count median diameter 0.24 mu m). [Description provided by NIOSH]
• Subjects:
  Aerosols Air Pollutants, Occupational Chromatography, Gas Environmental Monitoring Hydrocarbons Occupational Health Particulate Matter Respiratory System Safety
• Keywords:
  Aerosol-particles Air-sampling Analytical-methods Asphalt-fumes Asphalt-industry Fumes Gas-adsorption Gas-liquid-chromatography Particle-aerodynamics Particulates Respiratory-gas-analysis

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• ISSN:
  1545-9624
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Massachusetts ; Michigan ; Ohio ; OSHA Region 1 ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DSHEFS - Division of Surveillance, Hazard Evaluations, and Field Studies
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  209-216
• Volume:
  4
• NIOSHTIC Number:
  nn:20032489
• Citation:
  J Occup Environ Hyg 2007 Jan; 4(Suppl 1):209-216
• Contact Point Address:
  Robert F. Herrick, Harvard School of Public Health, Department of Environmental Health, 665 Huntington Ave., Boston, MA 02115
• Email:
  herrick@hohp.harvard.edu
• CAS Registry Number:
  Asphalt (CAS RN 8052-42-4)
• Federal Fiscal Year:
  2007
• NORA Priority Area:
  Manufacturing
• Performing Organization:
  Harvard School of Public Health
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Journal of Occupational and Environmental Hygiene
• Supplement:
  1
• End Date:
  20280630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f0db4bed60caeb0e0e1ff00b36194c76b5bd1d10fa97a43f62caa593b075e3c507d23f3274fab0c368de1944f710bc11135636c67f44c3f86496021aa706c876
• Download URL:
  https://stacks.cdc.gov/view/cdc/186434/cdc_186434_DS1.pdf
• File Type:
  [PDF - 297.57 KB ]