摘要：综述近30年来国内外对气溶胶吸湿性研究的实验方法和研究结果,并分析影响气溶胶吸湿性的各种内在和外在因素,介绍加湿串联差分迁移分析仪(H-TDMA)在过去的25年研究中被广泛用来进行细粒子在不同相对湿度下的吸湿特性试验。通过试验发现:不同成分气溶胶吸湿生长情况不同;无机水溶性气溶胶一般具有较强的吸湿性,而有机组分对气溶胶吸湿性的影响有较大差异。在大气环境测量中,发现来自生物质燃烧的气溶胶在相对湿度大于80%时出现单峰及双峰,在城市区域观察到多峰现象,这说明由于混合状态不同以及组分不同将导致气溶胶吸湿长大行为的变化。

关键词：吸湿性；气溶胶；相对湿度

Abstract：The experimental method and the results of hygroscopic properties of aerosol particles which have being studied at home and abroad in past 30 years were summarized and the internal and external factors affecting the hygroscopic properties of aerosol particles were analyzed. The humidification tandem differential mobility analyzer （H-TDMA） was widely used for testing the fine particles in different relative humidity of the moisture absorption characteristics of experiments in the past 25 years' researches. It was found that the different components of aerosol hygroscopic growth were different. Water-soluble inorganic aerosol generally had a strong moisture absorption， while the organic components of the aerosol's effect was quite different. In the ambient measurement， it was found that the aerosols from biomass burning showed a single peak and two peaks in countryside and multi-peak phenomenon in urban at more than 80% relative humidity， which illustrated the different mixing states as well as the different components will lead to hygroscopic behavior of aerosol grew up changes. 

Keywords：hygroscopicity； aerosol； relative humidity