Characteristic Distribution of Aerodynamic Diameter of Inhalable Particulate from Different Sources
WU Yu ZHOU Xiang-dong~*(Department of Respiratory Medicine,The Second Affliated Hospital,Chongqing University of Medical Sciences,Chongqing 400010,China)
[Objective]To study the characteristic distribution of particles with aerodynamic diameter less than 10μm(PM_(10)) from different sources.[Methods]Particle samples were collected from kitchens,smoking-rooms,roadside and communities and then analyzed by air particle spectrometer(ASP-3321).[Results]The number of collected particles of 2～5μm in diameter in the cigarette smoking group was 492 per minute,whereas those in kitchen,roadside and community groups were 428,279 and 156 per minute respectively.[Conclusion]We speculate that the effect of particles with an aerodynamic diameter between 2 and 5μm would not be ignored.
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