In-depth survey report: control technology for removing lead-based paint from steel structures: chemical stripping at Columbus, Ohio Bridge Finishes, Inc., Columbus, Ohio.

Details

• Personal Author:
  Crouch KG ; Froehich PA ; Mickelsen RL ; Zimmer AT
• Description:
  Lead and alkaline dust exposures were evaluated during the chemical stripping of lead-based paint from an overpass bridge. The chemical stripper, used at this site was an alkaline paste (Peel Away ST1, Dumond Chemical, Inc., New York, NY) consisting of calcium hydroxide (21%), magnesium hydroxide (16%), sodium hydroxide (9%), and the balance water and other nontoxic materials. Paint removal work was done at an overpass bridge that carried four lanes of traffic and spanned seven railroad tracks near a switching station. The removal method consists of spraying the alkaline paste on the painted surface, allowing it to react overnight, the scraping the decomposed paint and excess caustic from the steel surface. After the scraping process, the debris was cleaned from the area and the surfaces were abrasive blasted. This paint removal technique was evaluated by collecting and analyzing bulk sample of paint; personal breathing zone (PBZ) air samples of the caustic applicator, scrapers, rinser, and abrasive blast operators; and area air samples. Work practices and personal hygiene practices were also observed.
• Subjects:
  Accidents, Occupational Air Pollutants, Occupational Air Pollution, Indoor Nervous System Occupational Health Safety Toxicology
• Keywords:
  Abrasive-blasting Alkalies Calcium-compounds Control-technology Hydroxides Lead-dust Magnesium-compounds Paint-removers Region-5 Sodium-compounds
• DOI:
  https://doi.org/10.26616/NIOSHECTB18317a
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Field Studies ; Control Technology
• Place as Subject:
  Ohio ; OSHA Region 5
• 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:
  1-14
• NIOSHTIC Number:
  nn:20000569
• Citation:
  Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, ECTB 183-17a, 1999 Jun; :1-14
• CAS Registry Number:
  Lead (CAS RN 7439-92-1) ; Calcium hydroxide (CAS RN 1305-62-0) ; Magnesium hydroxide (CAS RN 1309-42-8) ; Sodium hydroxide (CAS RN 1310-73-2)
• Federal Fiscal Year:
  1999
• Peer Reviewed:
  False
• NAICS and SIC Codes:
  1721; 1622
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:ed50a35bc46bfc6df0ac573f8b3ba9f971ecbd4aa4b4a5cc2e9744a018b680e97165a9edf939ffd11de2fcc01f30c4101ffdbb236655affdc4e91f4940ccdce8
• Download URL:
  https://stacks.cdc.gov/view/cdc/181013/cdc_181013_DS1.pdf
• File Type:
  [PDF - 328.67 KB ]