In-depth survey report: evaluation of brake drum service controls at Cincinnati Bell Maintenance Facility, Fairfax, Ohio.

Details

• Personal Author:
  Cooper TC ; Sheehy JW ; Todd WF ; Wagenen HD ; Cooper TC ; Sheehy JW ; Todd WF ; Wagenen HD
• Description:
  The effectiveness of vacuum units (Nilfisk Asbestos-Clene System) equipped with high efficiency particulate air filters in limiting exposure to asbestos (1332214) during the servicing of automotive brakes was evaluated. Brake servicing of seven vehicles at the Cincinnati Bell Fairfax Garage was studied. Phase contrast microscope (PCM) analyses of personal air samples, collected for the duration of a single brake job or for 2 hours, whichever was longer, yielded counts ranging from 0.004 fiber per cubic centimeter (f/cc) (detection limit) to 0.016f/cc using an aspect ratio of 5:1. Effective control was evidenced by the low exposures for the brake mechanics; 79 percent of the air samples, including personal, axle, fender, background, and ambient samples were below detectable limits. Transmission electron microscopy also showed very low asbestos concentrations. The authors caution that workers should not use a dry cloth to clean hands after finishing a brake job. Instructions are offered for safe removal and replacement of the various filters in vacuum units. The authors suggest that, while this vacuum approach appears applicable for servicing smaller vehicles additional research is needed to determine its effectiveness for larger vehicles. The effectiveness of the vacuum method also depends on work practices under which it is used.
• Subjects:
  Accidents, Occupational Environmental Monitoring Metals Occupational Health Safety
• Keywords:
  Air-quality-control Air-sampling Airborne-fibers Dust-control Dust-inhalation Fibrous-dusts Field-Study NIOSH-Author NIOSH-Survey Region-5 Repair-shops Vacuum-cleaning-systems

  More +
• DOI:
  https://doi.org/10.26616/NIOSHECTB15221b
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Field Studies ; Control Technology ; Field Studies ; Control Technology
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH) ; National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DPSE - Division of Physical Sciences and Engineering ; DPSE - Division of Physical Sciences and Engineering
• Topic:
  Workplace Safety & Health ; Workplace Safety & Health
• Location:
  North America ; North America
• Pages in Document:
  1-28
• NIOSHTIC Number:
  nn:00175414
• Citation:
  Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, ECTB 152-21b, 1987 Oct; :1-28
• CAS Registry Number:
  Asbestos (CAS RN 1332-21-4) ; Asbestos (CAS RN 1332-21-4)
• Federal Fiscal Year:
  1988
• Peer Reviewed:
  False
• NAICS and SIC Codes:
  4811 - Telephone Communication - (SIC)
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:a0d8bb67a4194787ff6f21afc51dcd6e0f598a96aed3ae57147a3135bcd3140532c5f7cfb64d13bb64f984b88c62ed3122bd7a245beb52707d7f80183ade3084
• Download URL:
  https://stacks.cdc.gov/view/cdc/180036/cdc_180036_DS1.pdf
• File Type:
  [PDF - 718.64 KB ]