Hygroscopicity of Inorganic Aerosols: A relationship of Growth Factor with Particle size and Relativ

• 作 者: DaweiHu[1]XingnanYe[1]TiantaoCheng[1]JianminChen[1]WenFang[2]
• 机 构: Center of Atmospheric Chemistry Study, Department of Environmental Science & Engineering,Fudan Unive
• 出 处: 第五届全国环境化学大会会议
• 发表日期: 2008年期

Hygroscopic behaviors of some inorganic salts with various sizes were measured at different relative humidity（RH) by a self-made Hygroscopic Tandem Differential Mobility Analyzer（H-TDMA) system at 25℃. For（NH4)2SO4，NaNO3，NaCl and Na2SO4 particles with a diameter of 100 nm，a good agreement were observed between the measured hygroscopic growth factors and the theoretical Kohler curves. At a RH below deliquescence point，the growth factor decreases linearly with increasing of the particle size，the smallest particle appearing a highest growth factor.