Cost-effectiveness Analysis of Reducing the Emission of Nitrogen Oxides in Asia
2007
Yamashita, Ken | Itō, Fumiko | Kameda, Keigo | Holloway, Tracey | Johnston, Matthew P.
The purpose of this study is to evaluate cost-effective reduction strategies for nitrogen oxides (NO x ) in the Asian region. The source-receptor relationships of the Lagrangian “puff” model of long-range transportation, ATMOS-N, were used to calculate the wet/dry deposition of the nitrogen (N) in Asia. Critical loads of N deposition in Asia were calculated from the relationships between the critical load of sulfur (S) and balance of N in and out using the data of S critical load of RAINS-ASIA. The cost functions of N reduction of Asian countries were derived by the regression analysis with the data of cost functions of European countries used in RAINS. In order to assess the environmental impact, the gaps between N deposition and critical load of N were calculated. The emission of NO x was reduced in some cases of this model, and the changes of gaps between N deposition and critical load were observed as well as the changes of the reduction cost. It is shown that a uniform reduction of NO x emissions by countries in Asia is not cost-effective strategy.
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