Studies on Secondary Organic Aerosol Formation from Volatile Organic Compounds in China

Research Project , Research Report 2006

M.Koike Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo
T. Ohara National Institute for Environmental Studies


Aerosols in the atmosphere play critical role in controlling atmospheric environment, including air quality and climate. In this study, canister sampling of air was made in PRD (Pearl River Delta) region (urban and rural sites) and Beijing area (urban and rural sites) in China. Concentrations of precursor gases for ozone and organic aerosols, such as ethane and toluene, are generally higher than those in Tokyo area. Concentrations are especially high in urban areas. This is the first report on the detailed measurements of VOCs (volatile organic compounds) in these regions.


PRD, Beijing, VOC, ozone, aerosol