Health hazard evaluation report: HETA-93-0796-2555, Malvern Minerals Company, Hot Springs, Arkansas.
Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, HETA 93-0796-2555, 1995 Dec; :1-42
In response to a request from the Mine Safety and Health Administration to determine the prevalence of silicosis in specific ground silica operations, a medical survey was conducted at Malvern Minerals Company (SIC-1446), Hot Springs, Arkansas. Workers with 1 year or more of work in grinding areas or areas downstream from grinding participated in the medical survey which included a questionnaire, spirometry, and a chest X-ray. There were 12 current workers and 11 former workers who participated in the medical survey. Of the 23 workers surveyed, 39% had chest radiographs consistent with silicosis. Two workers had radiographs consistent with progressive massive fibrosis. Abnormal lung function was identified in 26% of the participants. The author concludes that there was a substantial prevalence of silicosis among current and former ground silica workers at this facility. The author recommends that a medical monitoring program be instituted at this site.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-93-0796-2555; Hazard-Confirmed; Region-6; Lung-function; Respiratory-system-disorders; Occupational-exposure; Mineral-dusts; Chest-X-rays; Pulmonary-function-tests;
Author Keywords: Industrial Sand; Silica; Silicosis; Mineral processing; Ground silica; Silica flour
Field Studies; Hazard Evaluation and Technical Assistance
National Institute for Occupational Safety and Health