In-depth survey report: control technology for small business: evaluation of a flexible duct ventilation system for radiator repair at A-1 Radiator, Reno, Nevada.

Details

• Personal Author:
  Cooper TC ; Hall, Ronald M. ; Meier RM ; Sheehy JW
• Description:
  An engineering control evaluation was conducted at a radiator repair shop which operated at a very high level of production. The shop had the potential for high exposures to lead (7439921) because of the high volume of work, the number of radiator repair stations, and repairs to huge radiators for mining equipment. Local exhaust ventilation which utilized adjustable arm elephant trunk exhaust hoods had been installed 18 months prior to the visit. The objective of this study was to evaluate the effectiveness of the local exhaust ventilation (LEV) system to control lead exposures during work operations. Time weighted average personal exposures for lead were at or below the OSHA permissible exposure level for ten of 15 mechanics during a high level of production. The elephant trunk ventilation system was capable of controlling lead fumes while shop doors were open, except at one tank in a corner. Work practices were found to be a source of excessive lead exposure. Emissions from a worker's own soldering and from soldering activity upwind of the worker were a major source of lead exposure. Collapse of flexible portions of ducts could reduce exhaust volume. Dampers also showed a tendency to close automatically.
• Subjects:
  Accidents, Occupational Chemistry Environmental Monitoring Laboratories Occupational Health Safety
• Keywords:
  Air-quality Automobile-repair-shops Control-technology Exhaust-ventilation Field-Study Lead-poisoning Mechanics NIOSH-Author NIOSH-Survey Region-9 Ventilation-systems

  More +
• DOI:
  https://doi.org/10.26616/NIOSHECTB17211A
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Field Studies ; Control Technology
• Place as Subject:
  Nevada ; Ohio ; OSHA Region 5 ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DPSE - Division of Physical Sciences and Engineering
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-33
• NIOSHTIC Number:
  nn:00194439
• 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 172-11a, 1990 Feb; :1-33
• CAS Registry Number:
  Lead (CAS RN 7439-92-1)
• Federal Fiscal Year:
  1990
• NORA Priority Area:
  Control-technology
• Peer Reviewed:
  False
• NAICS and SIC Codes:
  7539 - Automotive repair shops, not elsewhere classified - (SIC)
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:2297edaefb9ead162da8928fc058d60e40bfc69cbf74be29ec961c6fb090363f6285f550cd0309eeb3b9c7929b30717dd914a3f86ae99473a04538c725dc48dc
• Download URL:
  https://stacks.cdc.gov/view/cdc/180372/cdc_180372_DS1.pdf
• File Type:
  [PDF - 781.63 KB ]