The objective of this project to investigate the controlling processes of the formations and distributions of ozone and particulate matters and to develop a forecast model in Taiwan. The ultimate goal of this project is to provide the Taiwan-EPA critical information for the development of control strategies of ozone and particulate matter. The major achievement of this project includes: (1) Identification of the periods and impacted areas of Asian dust transport events in Taiwan during 2002-2004 (2) Improvement in our understanding on the transport mechanisms and characteristics of long-range transported air pollutants during the periods of prevailing northeasterlies of winter monsoons. This will be helpful to the EPA in identification and assessment of the air quality impacts due to the distant sources. (3) Identification of the critical chemical species in the formation mechanisms of ozone in the Kaohsiung-Pingtung area, and estimating the contributions of the respective species in the ozone production rate. (4) Successful development of an air quality model that can correctly forecast the variations in the ozone levels over the Kaohsiung-Pingtung area. This model can be used to make air quality forecast and to develop ozone control strategies. (5) Setting up two aerosol optical depth (AOD) stations (located in Taipei and Tainan, respectively), and enhancing our capability to study the effects of air pollutants on the atmospheric radiation budget over Taiwan.

Ozone,Particulate Matter,Aerosol Chemical Composition,Volatile Organic Compound,Air Quality Model