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Technical assistance report no. TA-76-54, Department of the Interior, National Park Service cave study.
Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, TA 76-54, 1978 May; :1-15
A hazard evaluation and technical assistance survey to determine possible hazardous exposure to radon daughters by employees in National Park Service Caves (SIC-7999) was conducted. Radon daughters emit alpha radiation, a known pulmonary carcinogen. Eight caves were surveyed. Each employee was given a questionnaire and asked to provide two first morning sputum specimens on successive days. Based on responses and sputum analyses there is no evidence of a measureable respiratory effect on the cave workers at the time of this study. It was recommended that cave workers at least 45 years old with five or more years of cave work experience and who smoke be routinely monitored since they are at high risk for pulmonary disease.
NIOSH-Author; NIOSH-Technical-Assistance-Report; Region-5; Industrial-hygiene; Inert-gases; Radioactive-materials; Respiratory-irritants; Radiation-sources; Radioactive-contaminants; Radiation-monitoring; Radiation-hazards; Radiation-exposure; Expectoration; Sputum-cytology; Cytology; Sampling; TA-76-54; Hazard-Unconfirmed; Smoking
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Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division