Objective To develop a simplified method for measuring the size distribution of nano-sized aerosols.
Methods Based on the fundamental principles of aerosol capture on wire screens, a method adopting wire screens was developed for measuring the size distribution of nano-sized aerosols, its feasibility was verified through comparison experiments and field application.
Results Comparison of the results showed that the measured size distribution of aerosols were nearly the same with the two methods. Field measurements also showed that both the median size and its distribution of indoor aerosols varied with the changes of environmental factors.
Conclusion The new measuring method could be used for measurement of the size distributions of aerosols in a range of 10 nm to 300 nm.
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