Study on the Estimation of Cost Function for Reducing the Emission of Nitrogen Oxides and Their Emission Control Policy through Intermational Collaboration

The purpose of this study is to explore cost-effective reduction strategies for nitrogen oxides (NOx) in the Asian region. In order to reduce the adverse impact on ecosystems by acid deposition, it is crucial to control the emission of NOx in the cost-effective way. The integrated assessment model, RAINS, has been utilized in Europe as the useful tool evaluate the minimized cost to reduce the pollutants which cause the transboundary air pollution such as acid deposition. In order to apply the methodology of Europe to Asia, the cost functions of the nitrogen reduction of Asian countries in 2010 and 2020 were derived by the regression analysis using cost functions adopted in RAINS and the data of emission inventory in Asia, REAS. It is suggested that a uniform reduction of NOx emissions by countries in Asia is not cost-effective strategy