Near forward light scattering characteristics of airborne particles

被引：0
|
作者：
Wu J. [1 ,2 ]
Zhang J. [1 ,2 ]
Zhang L. [1 ,2 ]
Ding L. [1 ]
Zheng H. [1 ]
Wang Y. [1 ]
Fang L. [1 ]
机构：
[1] Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, Anhui
[2] University of Chinese Academy of Sciences, Beijing
来源：
Fang, Li (FANGLI@aiofm.ac.cn) | 1600年 / Chinese Optical Society卷 / 36期
关键词：
Mass concentration; Mie scattering; Near forward scattering; Responsivity; Scattering;
D O I：
10.3788/AOS201636.0529001
中图分类号：
学科分类号：
摘要：
A near forward light scattering experimental apparatus is designed to investigate the light scattering properties of airborne particles and its applications in measurement of dust mass concentration. By experimental measurement and the Mie scattering theory for both monodisperse and polydisperse particulate matter samples, the relationships between near forward light scattering intensity and particle diameter, size distribution are obtained. The results demonstrate that the experimental apparatus can be used to measure the aerosol mass concentration of airborne particles in ambient air. More accurate responsivity can be obtained through experimental measurement and the Mie scattering theory for known monodisperse aerosol samples, and it is possible to estimate the error range in measurement of ambient air particles. If calibrated with the ultrafine Arizona road dust, the mass concentration readings of urban aerosols should be corrected by multiplying a factor of 2.5. © 2016, Chinese Lasers Press. All right reserved.
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页数：11
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