Battista G, Belli S, Carboncini F, Comba P, Levante G, Sartorelli P, Strambi F, Valentini F, Axelson O
Institute of Occupational Medicine, University of Siena, Italy.
Scand J Work Environ Health. 1988 Oct;14(5):280-5. doi: 10.5271/sjweh.1919.
Mortality among pyrite miners with low-level exposure to radon daughters. Scand J Work Environ Health 14 (1988) 280-285. 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 10(6) person-years and working level month in the whole cohort and 21.3 per 10(6) person-years in the subcohort with 10-25 years of exposure.
低水平接触氡子体的黄铁矿矿工的死亡率。《斯堪的纳维亚工作环境与健康杂志》14 (1988) 280 - 285。对位于意大利中部的一座黄铁矿矿进行了队列死亡率研究。工作区域内氡的接触水平为0.12至0.36工作水平（WL）；大多数测量值约为0.2 WL。粉尘中游离二氧化硅的浓度低于2%。该队列根据公司档案确定，包括1899名受试者。研究了1965 - 1983年期间的死亡率。随访失访率低于2%。所有原因和所有肿瘤的标准化死亡率分别为97和107。肺癌和非恶性呼吸道疾病的标准化死亡率分别为131（95%置信区间97 - 175）和173（95%置信区间135 - 231）。据估计，在整个队列中，每10⁶人年和工作水平月归因于氡子体的肺癌额外病例数为13例，在暴露10 - 25年的亚队列中为每10⁶人年21.3例。
