粉尘检测中粉尘分散度检测重要性的探讨

目的对工作场所空气中粉尘测定存在的问题进行探讨。方法对工作场所空气中某种粉尘进行总尘浓度、呼尘浓度、分散度测定。结果按规定方法的测定结果似乎不能真实反映该工作场所空气中粉尘的实际情况。结论对工作场所空气中的粉尘测定，应首先测定粉尘分散度，然后根据分散度结果，选用合适的方法和器具。

Measurement of Dust Dispersivity is Very Important to Evaluate Dust Exposure Level

Objective To demonstrate the problem which occurs during the course of measurement of dust concentration with present recognized method. Methods The concentration of total dust, respirable dust and the dust dispersivity were measured at same time. The potential problem was showed with these results. Results The data gotten from such test can not represent the reality of dust concentration at workplaces. Conclusion To evaluate the dust exposure, it is important to measure the dispersivity firstly and then select the effective sampler based on the result of dispersivity.