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Evaluation of Occupational Exposure to In-Bus Traffic Related Air Pollution Concentrations and Noise Levels for Bus Drivers



Details

  • Personal Author:
    Barnwell MS
  • Description:
    Indoor air quality of buses has been assessed in numerous studies but few have assessed the occupational exposure to the driver to in-cabin pollutants. The purpose of this study was to quantitatively measure common in-cabin pollutants and noise and compare the results to recommended and regulatory limits to determine the risk to the driver. Direct reading instruments were used to measure formaldehyde, total volatile organic compounds, particulate matter of varying diameter, carbon dioxide, temperature, and relative humidity over ten days. A noise dosimeter was used to determine maximum sound level and the peak instantaneous sound pressure level. Daily averages, maximum concentrations, and 8-hour time weighted averages (TWA) were calculated. The 10-hour adjusted threshold limit values (TLVs) were calculated to compare average concentrations to a worst-case scenario. Calculated 8-hour TWAs of formaldehyde was greater than the National Institute for Occupational and Health Recommended Exposure Limits for nine of the ten days. Additionally, average daily concentrations of formaldehyde were greater than the 10-hour adjusted TLV for seven of the ten days if the average exposure were to remain the same for the 10-hour work shift. All other pollutant concentrations and noise were less than recommended and regulatory limits. The results of this study indicate that the occupational exposure of the driver to in-cabin pollutants was low, but further the need for additional investigation into in-cabin exposures to formaldehyde. [Description provided by NIOSH]
  • Subjects:
  • Keywords:
  • Publisher:
    University of Cincinnati
  • Document Type:
    Text
  • Funding:
    Grant
  • Genre:
    Thesis
  • Place as Subject:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    1-26
  • NIOSHTIC Number:
    nn:20068878
  • Citation:
    Cincinnati, OH: University of Cincinnati, 2021 Mar; :1-26
  • Federal Fiscal Year:
    2021
  • Performing Organization:
    University of Cincinnati
  • Peer Reviewed:
    False
  • Start Date:
    20050701
  • Source Full Name:
    Evaluation of occupational exposure to in-bus traffic related air pollution concentrations and noise levels for bus drivers
  • End Date:
    20260630
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:149a35d1fe792f3cca42c82ba42409567fc3bf839cd349e68b8b7e7fe698ec7df13fb4410527d65134bcdc3aca3a3a47670503790d182cc6859ea5f21cd3fc8a
  • Download URL:
  • File Type:
    Filetype[PDF - 2.26 MB ]
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