A cohort mortality study was conducted with regard to a pyrite mine located in central Italy. Exposure to radon ranged from 0.12 to 0.36 working levels (WL) in the work areas; most measurements were around 0.2 WL. The concentration of free silica in the dust was less than 2%. The cohort was determined from company files and included 1 899 subjects. Mortality was studied for the years 1965-1983. The loss to follow-up was less than 2%. The standardized mortality ratio for all causes and all neoplasms was 97 and 107, respectively. That for lung cancer and for nonmalignant respiratory diseases was 131 (95% confidence interval 97-175) and 173 (95% confidence interval 135-231), respectively. It was estimated that the extra cases of lung cancer attributable to radon daughters numbered 13 per 106 person-years and working level month in the whole cohort and 21.3 per 106 person-years in the subcohort with 10-25 years of exposure.
Battista, G., Belli, S., Carboncini, F., Comba, P., Levante, G., Sartorelli, P., et al. (1988). Cohort study on mortality among pyrite miners with low level exposure to radon daughters. SCANDINAVIAN JOURNAL OF WORK, ENVIRONMENT & HEALTH, 14(5), 280-285 [10.5271/sjweh.1919].
Cohort study on mortality among pyrite miners with low level exposure to radon daughters
BATTISTA, GIUSEPPE;SARTORELLI, PIETRO;
1988-01-01
Abstract
A cohort mortality study was conducted with regard to a pyrite mine located in central Italy. Exposure to radon ranged from 0.12 to 0.36 working levels (WL) in the work areas; most measurements were around 0.2 WL. The concentration of free silica in the dust was less than 2%. The cohort was determined from company files and included 1 899 subjects. Mortality was studied for the years 1965-1983. The loss to follow-up was less than 2%. The standardized mortality ratio for all causes and all neoplasms was 97 and 107, respectively. That for lung cancer and for nonmalignant respiratory diseases was 131 (95% confidence interval 97-175) and 173 (95% confidence interval 135-231), respectively. It was estimated that the extra cases of lung cancer attributable to radon daughters numbered 13 per 106 person-years and working level month in the whole cohort and 21.3 per 106 person-years in the subcohort with 10-25 years of exposure.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/11365/33817
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