本文收集了某砂轮厂１９７３～１９９１年粉尘测定资料，以及６１６例接尘者职业性体检资料。所研究的６１６例中，接尘者５７１例，尘肺患者４５例。采用寿命表法研究了砂轮作业工人接尘剂量与反应的关系，估算接尘３０年尘肺发病率小于１％时，砂轮粉尘浓度不超过７．５２ｍｇ／ｍ￣３。作者建议砂轮粉尘容许浓度为５ｍｇ／ｍ￣３为宜。 This paper collected a grinding wheel plant from 1973 to 1991, the determination of dust, as well as 616 cases of occupational physical examination data. Of the 616 studies studied, 571 were exposed to dust and 45 were pneumoconiosis. The life table method was used to study the relationship between the dust dose and response of grinding workers. It is estimated that the dust concentration of grinding wheel does not exceed 7.52 mg / m ~ 3 when the incidence of dust pneumoconiosis is less than 1% in the past 30 years. The author suggests that the wheel dust allowable concentration of 5mg / m ~ 3 is appropriate.