Liu G, Guo W
Hygienic and Anti-epidemic Central Station, Third Railway Enginering Bureau, Taiyuan 030006, China.
Wei Sheng Yan Jiu. 1998 Nov 30;27(6):367-9.
The aim of this study was to verify the change of the ratio of Respirable Dust Concentration (RDC) to Total Dust Concentration (TDC) taken by two-stage impactor sampling. The results showed that there was a correlation between the ratio of RDC/TDC and TDC (correlation coefficient was 0.8576, 0.8689, 0.8736 and 0.9674, respectively) under the condition of identical sampling volume, and the ratio increases along with the elevated TDC.
本研究的目的是验证通过两级冲击式采样器采集的可吸入粉尘浓度（RDC）与总粉尘浓度（TDC）之比的变化。结果表明，在采样体积相同的条件下，RDC/TDC之比与TDC之间存在相关性（相关系数分别为0.8576、0.8689、0.8736和0.9674），且该比值随TDC的升高而增加。
