わが国の汚染物質濃度に対する発生源・越境輸送の感度解析

概要

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Sensitivities of emission sources and transboundary transport on pollutant concentrations were calculated by 3-D air quality simulation. The sensitivity of transboundary transport on O_3 was exclusively high. The sensitivities of vehicles and other anthropogenic sources on yearly or monthly O_3 were negative throughout a year. Transboundary transport had a certain sensitivity on SPM and even on NO_2 because NO_2 production via the reaction of NO and O_3 is O_3-sensitive under high NO conditions like urban areas. The sensitivities of sources and the transboundary transport on individual components of SPM were affected by various nonlinear processes like photochemical reactions involving O_3 and VOC. and the equilibrium between particles and gas in the atmosphere, as well as the direct contribution of emissions and transboundary transport. It was implied that transboundary transport and complex and nonlinear processes in the atmosphere, as well as the direct emission of pollutants, must be taken into account in order to consider effective strategies to improve air quality.
社団法人大気環境学会の論文
2008-03-10