Mortality experience of Vermont granite workers.
Davis-LK; Wegman-DH; Monson-RR; Froines-J
A comparison was made between the chief cause of death among 969 deceased white male granite workers in Vermont and the causes of death among other individuals not in that occupation. Vermont granite contains about 30 percent free silica (14808607). Work histories were obtained from the Vermont Department of Health for 969 white men employed for at least 1 year in this industry and who had died prior to July 1978. Seventy three percent of the men worked in the sheds only, 24 percent were quarry workers or both, and 26 men worked in the sawplants or gritmill. Tuberculosis deaths were ten times the number predicted based on the U.S. white male experience. Of the 65 tuberculosis deaths, 48 were silicotuberculosis and 16 were pulmonary tuberculosis. A notable increase was found for deaths due to all respiratory diseases, with 28 deaths due to silicosis. Excluding deaths due to silicosis and tuberculosis left a small excess of emphysema related deaths. For 25 men in the respiratory disease category whose cause of death was not listed as silicosis, ten had evidence of silicosis in their x- ray records suggesting some misdiagnoses may have occurred. An excess of lung cancer deaths was noted among sawyers and polishers, suggesting possible effects of abrasive exposures. No tuberculosis deaths were noted in men who started work in the post dust control period, after 1950. There was an excess of suicide deaths before 1970.
NIOSH-Grant; Pulmonary-system-disorders; Lung-disease; Pulmonary-function; Mine-workers; Quarry-workers; Silica-dusts; Dust-inhalation
Physiology Department, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA 02115
Final Grant Report
NTIS Accession No.
Occupational Health Program, Harvard School of Public Health, Boston, Massachusetts, NIOSH Grant No. T15-OH-07096, :1-52
Harvard University, Boston, Massachusetts