Particle and Aerosol Research Vol. 3, No. 2, June 2007 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
A study on the particle size distribution of particles for Asian dust occurred during April, 2006
±èâȯ∙Á¤°æ½Ä∙ȲÀÇÇö1)∙±è½Åµµ*
Abstracts
The variation of the particle size distribution as well as the chemical composition of aerosols is important to evaluate
the Asian dust. This study measured and analyzed airborne particles using a scanning mobility particle sizer
(SMPS) system and an aerodynamic particle sizer spectrometer (APS) at University of Seoul during April, 2006.
Particle number concentration of airborne particles less than 0.2 ¥ìm was decreased during Asian dust and it began
to increase after Asian dust. It considered that particle number concentration decreases by adsorbed in ultra fine
dust that particles that is flowed at Asian dust or as a catalyst which help combine to ultra fine particle each other.
Mass concentration appeared highest at Asian dust in all of the range that less than 1 ¥ìm.
Also, when we compared ¥â-ray¡¯s mass concentration with calculated mass concentration by using SMPS-APS
during Asian dust period, we could know it has higher density in PM 2.5 area than in PM 10 area.
File
3-2006³â.pdf
Download