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为了了解单纯煤尘对地面作业工人健康的影响,我们从1971年开始对北京市海淀区及昌平县煤建公司所属地面原煤加工厂工人进行了健康情况调查。在全部300名工人中共发现了16名煤工尘肺患者,23名可疑患者。现将调查结果报告如下: 生产方式及劳动环境情况
In order to understand the impact of pure coal dust on the health of ground workers, we conducted a survey on the health of workers at ground-based coal processing plants owned by Haidian District and Changping County Coal-built Company from 1971 onwards. In all 300 workers, a total of 16 coal worker pneumoconiosis patients and 23 suspicious patients were found. The survey results are reported as follows: Production methods and working environment