A novel method to generate CaCO3 aerosol and investigation of hygroscopicity and CCN activity of CaCO3 and Ca(HCO3)2 aerosols
Introduction Mineral aerosol is one of the most important component of aerosol in the atmosphere. On the regional scale, it has an impact on the air quality and human health. On the global scale, it can not only influence radiative transfer by absorption and scattering of solar radiation, but also affect the cloud formation and its optical properties, therefore influence the global climate ultimately by direct and indirect radiation forcing. Meanwhile, during the long range transport, mineral aerosols can undergo various heterogeneous reactions and its deposit has an impact on the ocean ecosystem and the whole biogeochemical cycling. CaCO3 is a common component of mineral dust, especially in East Asia and is generally regarded as the most reactive component in mineral particles(Krueger et al., 2003;Laskin et al., 2005;Sullivan et al., 2007;Usher, 2003). To study the physiochemical properties of mineral aerosol, generating a surrogate aerosol of mineral aerosol is needed. However, most of mineral dust component have very low solubility which makes generating aerosol by atomization from solution difficult. Therefore, a method that is easy to handle to generate a surrogate aerosol of mineral aerosol is in demand.
Defeng Zhao Christian Spindler Ralf Tillmann Angela Buchholz Thomas Mentel Klaus-Peter Müller Joachim Borchardt Andreas Wahner Tong Zhu Astrid Kiendler-Scharr Achim Trimborn
State Key Joint Laboratory of Environmental Simulation and Pollution Control,College of Environmental Sciences and Engineering,Peking University,Beijing,100871,China
国际会议
International Conference on Environment Simulation and Pollution Control(第六届环境模拟与污染控制学术研讨会)
北京
英文
108-109
2009-11-01（万方平台首次上网日期，不代表论文的发表时间）