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本文应用寿命表方法,对某金矿脱尘矿工粉尘接触水平与尘肺发病关系进行了研究,结果表明:随累积接尘量的增高,脱尘矿工尘肺患病率及累积患病率均依次递增,且差异显著(P<0.05或P<0.01);累积接尘量与尘肺患病之间存在剂量反应关系,若控制该职业人群尘肺累积发病率不超过5%,则作业场所空气中粉尘浓度应为3.5mg/m3左右。
This paper applies the life table method to study the relationship between dust exposure level of dust miner in a gold mine and the incidence of pneumoconiosis. The results show that the prevalence and cumulative prevalence of pneumoconiosis in dust miner increases with the increasing dust accumulation , And the difference was significant (P <0.05 or P <0.01). There was a dose-response relationship between accumulated dust accumulation and pneumoconiosis prevalence. If the cumulative incidence of pneumoconiosis in the occupational population did not exceed 5%, the working place Air dust concentration should be about 3.5mg / m3.