Ralph Zumwalde (NIOSH) to E. A. Piersall Enclosing Two Papers on Asbestiform Mineral Exposure and Mortality in Hard Rock Gold Miners (1976)

A March 12, 1976 cover letter from NIOSH's Ralph Zumwalde to Union Carbide Metals Division safety director E. A. Piersall, enclosing two papers on a South Dakota hard rock gold mine. The first paper reports excess respiratory cancer and nonmalignant respiratory disease deaths among miners exposed to fibrous grunerite (amosite) at low airborne concentrations; the second describes the electron microscopy analysis of the mine's airborne fibers. Both were presented at a New York Academy of Sciences conference on 24 March 1975. The letter says they bear on the NIOSH proposal to lower the airborne asbestos standard.

What the document holds

• Page 1: Cover letter, R. Zumwalde (NIOSH) to E. A. Piersall (Union Carbide Metals Division), March 12, 1976, with internal xc notation to Larrison and Thurber
• Pages 2-21: Gillam et al., 'Mortality Patterns Among Hard Rock Gold Miners Exposed to an Asbestiform Mineral' (title page, text, references, Tables 1-6), presented 24 March 1975
• Pages 22-35: Dement, Zumwalde and Wallingford, 'Asbestos Fiber Exposures in a Hard Rock Gold Mine' (text, figures 1-3, tables), presented 24 March 1975

People and organizations

From Ralph Zumwalde (Environmental Investigations Branch, NIOSH) to Mr. E.A. Piersall (Safety Director, Union Carbide Corporation, Metals Division, Grand Junction, Colorado).

• Ralph D. Zumwalde (author)
• E. A. Piersall (recipient)
• Center for Disease Control (named)
• Metals Division (named)
• New York Academy of Sciences (named)
• NIOSH (named)
• Social Security Administration (named)
• South Dakota School of Mines (named)
• U.S. Department of Health, Education, and Welfare (named)
• U.S. Public Health Service (USPHS) (named)
• Union Carbide Corporation (named)

Related pages

Pages on our site about what this document covers: Amosite: Brown Asbestos and the US Navy · Minnesota Asbestos Exposure Sites: Worksites, Industries, and Trust Coverage · NIOSH · Ohio Asbestos Exposure Sites: Worksites, Industries, and Trust Coverage · South Dakota Asbestos Exposure Sites: Worksites, Industries, and Trust Coverage.

About this copy

This is document UC-1605 of the Union Carbide documents, documents produced and used as evidence in asbestos lawsuits against Union Carbide, 35 pages. Production numbers A18017 to A18045.