According to Article 6, Paragraphs 2 and 3 of the Air Pollution Control Act, those newly added or modified stationary pollution sources within Class 2 and Class 3 of air pollution prevention regions in which air pollutant emissions quantities reach a certain regulatory scale is required to perform air quality simulation by suitable air quality model and verify the influence will not exceed allowable increment limits of air pollutant concentrations. As Article 8, Paragraph 2 stands, within a total quantity control district that meets air quality standards, those newly installed or modified stationary pollution sources for which pollutant emissions quantities reach a certain scale is required to perform air quality simulation by suitable air quality model and verify the influence will not exceed allowable increment limits within the district. The scientific and technical knowledge and information that the development and application of air quality models need to accomplish their missions spread in all kinds of academic and advisory organizations, which result into the decentralization of resources, duplicate constructions, various qualities, and barriers of information. Taiwan Air Quality Modeling Center (TAQMC) actually is a policy and technique supporting organization with a combination of experts and data resources in the industry, the government and the academics. In 2002, Taiwan EPA enforced the allowable increase limits of air pollution in the air pollution control act, and the standard requests of air quality modeling in the procedure of environmental impact assessment. Therefore, Taiwan EPA supported to establish “air quality model supporting center”. In fact, it belongs to the role of technical supporting for policy determination in order to laterally integrate the knowledge of production and official related to talent and data resource. The tasks accomplished and relative productions are shown as follows according to the sequence of objectives for this year in the project plan. (1)Cooperate in the application and examination of air quality models. (2)Planning the guideline to review the air quality modeling results in application cases of new stationary sources permit. (3)Update and pronounce the relative data for the simulations of allowable increment limit. (4)Maintain and update the website of TAQMC and consultation service (5)Review and analysis of air quality modeling in application cases of environmental impact assessment. (6)Assisting amendment articles in statutes related to the air quality model application. (7)Planning the guideline to review the air pollution control plan proposed by local environmental protection bureau. (8)Analysis of difference and reasonability of wind fields simulated by objective analysis and mesoscale meteorological model. (9)Evaluation of air quality model for particulate matter and their composition in Taiwan. (10)The influence assessment of transboundary long-range transport of air pollution on Taiwan air quality. (11)Preliminary planning for digital air quality forecasting system of Taiwan.

Allowable increment limit;Guidance of air quality modeling;PM2.5;Transboundary long-range transport