Objective: Apportion emission sources in the Hsin-Chuang areas by applying receptor models to measurements in the Supersite during 2002 -2003. Methods: The environmental data in the Supersite include hourly real-time PM2.5, EC, OC, sulfate, and nitrate measurements, and 25 2-day integrated samples during collected by a R&P 2300 PM2.5 air sampler during March, 2002 and March, 2003. A series of mobile source fingerprints were established for diesel vehicles、passenger car and motorcycle by using Harvard Impactor to collect PM2.5 in emission tests. X-ray Fluorescence analyzed elemental compositions of air samples. The source profiles from US EPA SEPCIATE for receptor model were selected to represent the stationary source fingerprints. A Bayesian chemical mass balance (CMB) model by Chan and Hwang was used to perform the data analysis in PC.
