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[Effect of impactor sampling on the ratio of respirable dust concentration to total dust concentration]
1Hygienic and Anti-epidemic Central Station, Third Railway Enginering Bureau, Taiyuan 030006, China.
Wei Sheng Yan Jiu = Journal of Hygiene Research
|April 10, 2002
Abstract:
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.