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作者根据剂量—反应关系,采用接触石英剂量、接尘年限(工龄)、累计尘肺患病率三项指标,对5个厂矿分别以各自的每两项指标,用最小平方法作相关回归分析,所得方程即可作粉尘容许浓度的估算。由于不同工龄、剂量和尘肺患病率呈正相关,从而可椎导出不同工龄或剂量的尘肺患病率的测报方程,其结果可为预防尘肺提供可靠的信息。
According to the dose-response relationship, the authors used three indicators of exposure to quartz, exposure to dust (length of service) and cumulative prevalence of pneumoconiosis. Based on the regression analysis of the least square method for each of the two factories, The equation can be used to estimate the allowable concentration of dust. Because of different length of service, dose and the prevalence of pneumoconiosis was positively correlated, which can be derived from different ages or doses of pneumoconiosis prevalence of the measurement equation, the results can provide reliable information for the prevention of pneumoconiosis.