NIOSH Testimony on Occupational Exposure to Asbestos, Tremolite, Anthophyllite, and Actinolite by R. A. Lemen, May 9, 1990.

Details

• Corporate Authors:
  National Institute for Occupational Safety and Health
• Description:
  This testimony summarized information pertinent to the proposed rulemaking to remove nonasbestiform tremolite (14567738), anthophyllite (17068789), and actinolite (77536664) from the asbestos standard. NIOSH concludes that on the basis of current data that cleavage fragments of the appropriate aspect ratio and length from the nonasbestiform minerals should be considered as hazardous as fibers from the asbestiform minerals. No scientifically valid health evidence was found for removing from the asbestos standard cleavage fragments that become airborne when nonasbestiform tremolite, anthophyllite and actinolite are mined, milled and used, and that meet the microscopic definition of a fiber. The risk of cancer from such exposures warrants limiting exposures to these minerals to the lowest feasible concentration. A glossary of terms is provided in an appendix.
• Subjects:
  Accidents, Occupational Air Pollutants, Occupational Amines Occupational Health Safety
• Keywords:
  Airborne-dusts Carcinogens Fibrous-dusts Lemen-R-A Lung-cancer Mineral-dusts NIOSH-Author NIOSH-Testimony Risk-factors
• Document Type:
  Text
• Genre:
  Testimony
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-17
• NIOSHTIC Number:
  nn:00195983
• Citation:
  NIOSH 1990 May:17 pages
• CAS Registry Number:
  Tremolite (Ca2[(Mg0.9-1Fe0-0.1)4.5-5Al0-0.5](Si7.5-8Al0-0.5)(OH)2O22) (CAS RN 14567-73-8) ; Anthophyllite (CAS RN 17068-78-9) ; Actinolite asbestos (CAS RN 77536-66-4)
• Federal Fiscal Year:
  1990
• Peer Reviewed:
  False
• Source Full Name:
  NIOSH, 17 pages, 45 references
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c292a5ee3ee49471cc4a5d8483dafde84e0b5e5de814dd71272b867ef981756b4254f973ed86f5ea238fe5bf6ba654fab6c3b2874196efbd4eaac0a7ba239895
• Download URL:
  https://stacks.cdc.gov/view/cdc/180403/cdc_180403_DS1.pdf
• File Type:
  [PDF - 760.14 KB ]