Size distribution and seasonal variation of ions in aerosol at semi-urban site in Beijing
北京城乡结合部气溶胶中水溶性离子粒径分布和季节变化

Concern about air pollution has led to numerous studies on the chemical composition and sources of atmospheric aerosols.Atmospheric aerosols influence many atmospheric processes including cloud formation,visibility variation and solar radiation transfer,and play a major role in acidification of clouds,rain and fog.Also,they have been found to be associated with health problems,such as mortality and asthma.To understand their sources,behaviors and forming mechanisms,it is important to measure both size distr...