Tornling G, Tollqvist J, Askergren A, Hallin N, Hogstedt C
Department of Thoracic Medicine, Karolinska Hospital, Stockholm, Sweden.
Scand J Work Environ Health. 1992 Apr;18(2):97-100. doi: 10.5271/sjweh.1595.
The machining of cast concrete often produces heavy exposure to respirable silica dust. Work with concrete in general results in considerably less exposure, however, and only a few cases of silicosis due to work with concrete have been reported. Telephone interviews with detailed questions on occupational history were made with 271 construction workers specializing in concrete work for more than 20 years, and exposure data were evaluated for different work tasks. The mean cumulative exposure of subjects to silica was estimated to be 2.4 mg.years.m-3. Chest radiographs were classified according to the International Labour Office classification. There was no suspicion of silicosis for any of the workers. The risk of contracting silicosis from work with concrete in the Swedish construction industry in recent decades is considered to be slight and does not justify general, periodic chest radiographic screening.
铸造混凝土的加工过程常常会使人大量接触可吸入的二氧化硅粉尘。然而，一般来说，从事混凝土作业导致的接触量要少得多，并且仅有少数因从事混凝土作业而患矽肺病的病例报告。对271名从事混凝土工作超过20年的建筑工人进行了电话访谈，询问了详细的职业史问题，并对不同工作任务的接触数据进行了评估。研究对象二氧化硅的平均累积接触量估计为2.4毫克·年·立方米。胸部X光片根据国际劳工组织的分类标准进行分类。所有工人均未被怀疑患有矽肺病。近几十年来，瑞典建筑业中因从事混凝土作业而感染矽肺病的风险被认为很小，因此没有理由进行普遍的定期胸部X光筛查。
