Industrial hygiene study of the Gouverneur Talc Company, Number One Mine and Mill in Balmat, New York.
Dement JM; Zumwalde RD
Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, IWS 36-12-1, 1977 Jun; :1-116
Worker exposures to respirable dust, free silica (7631869) and asbestos (1332214) were surveyed at the R. T. Vanderbilt Gouverneur Talc Company (SIC-1496) number One Mine and Mill in Balmat, New York, from November 3 to 7, 1975. Bulk samples of talc (14807966) were collected and personal air sampling was conducted in the mine and the mill. X-ray diffraction and optical or electron microscope analysis was conducted by NIOSH and two independent laboratories. All laboratories confirmed the presence of asbestiform tremolite (1332214) and anthophyllite (1332214) in the bulk talc samples at concentrations of 67 to 88 and 4 to 12 percent, respectively. Time weighted average (TWA) values for fiber and dust personal exposures for almost 30 job categories ranged from 1.7 to 9.8 fibers greater than 5 microns per cubic centimeter, and 0.25 to 2.96 milligrams per cubic meter, respectively. Free silica exposures were very low. Analysis of the impinger samples revealed excessive exposure to asbestos at almost every mine and mill operation. The authors conclude that excessive exposures to airborne fibers exist in both mine and mill. Recommendations include improved ventilation, upgraded equipment maintenance, and provision of respiratory protection to employees.
We take your privacy seriously. You can review and change the way we collect information below.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
Cookies used to make website functionality more relevant to you. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests.
Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data.
Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. These cookies may also be used for advertising purposes by these third parties.