The ”Project of integrating, maintaining and updating air quality information system of Taichung City” is to integrate and input environmental information, like data on construction sites in the integrated “Construction pollution pipeline system”, CEMS monitoring data, pollution fingerprint database, and, coupled with the technology of geographic information system, gather and display the related data to present spatial and environmental data in a complete manner. The coworkers at EPB will be able to query on environmental information from the system of this project without the need of logging in different systems and interface to do so. To effectively display information on air quality on one single platform, this project integrates nine existing websites of air quality project, including the website of odor control in Taichung Industrial Park, Taichung City diesel vehicle exhaust inspection station, the website of Taichung City air quality cleansing zone, the website of Taichung City air quality maintenance and management, the control web of Taichung City restaurant smoke pollution, the website of promotion of vapor recovery at gas stations in Taichung City, the website of information exchange on straw reuse in Taichung City, the website of promoting ghost money reduction in Taichung City, and the website of Green energy transportation of Taichung City, and, coupled with the technology of geo-information system, display spatial information on environmental objects. The project also implements the “platform of unified information on air quality” as the portal site for integrating air quality-related information, which enhances the ease of access to air quality information and creates true value of information as well. Besides the “standards for air contaminant emission by stationery polluting sources” promulgated by EPA, which requires every stationery polluting source to comply in respect of the control of air pollution, other standards and control schemes (regular inspection, reporting, etc.) for contaminant emission by special industries were also established, hoping to control the pollutant emission more effectively by means of different controlling regulations. Hence this project implements the online report and management system for special industries in Taichung City, including the petrochemical processes, photonic industry, semiconductor industry, car coating plants, PU leather and tape industry, to be effectively comprehensive of reporting and administration of these special industries.