| 英文摘要 |
In response to major air pollution occurrences over the years, the Environmental Protection Administration, Executive Yuan, R.O.C. (Taiwan) (EPA) has set up and promulgated the “Standard Operation Procedure for Air Pollution Incident Emergency Administration” in 2009. In addition, in response to needs arising from the existing complex events and based on the strengthening of the existing air pollution incident emergency management procedures, reporting and public warning mechanisms have been added. Focusing on the horizontal and vertical reporting and the general public’s right to know about air quality deterioration, in 2021, the EPA amended and promulgated the “Standard Operation for Reporting of Air Pollution Occurrences and Emergency Management”. In addition, in view of the need for the emergency management of air pollution occurrences, the lists of emergency contact persons of the central and local competent authorities have been acquired to implement communication tests without warning and communication tests before consecutive holidays. According to the applicable timing of the latest standard operations, a mechanism for reporting air pollution occurrences has been formulated, and the statistics of the cases of annual air pollution occurrences have been compiled to serve as references for the central and local governments in preventing and management air pollution occurrences in the future and relevant policy implementation directions.
In order to strengthen the local government’s implementation and momentum of the air pollution occurrence emergency management procedures, the information of annual air pollution occurrence exercises in the counties and cities of Taiwan have been collected. The advantages, disadvantages, and recommendations have been analyzed, while two session of sand-table maneuvers pertaining to the local competent authority’s emergency management of air pollution occurrences have been conducted. Two sessions each of briefing session and three sessions of education training have been completed. Through the holding of the above meetings, the air pollution occurrence related emergency concepts and disposal competence of the central and local competent authorities’ emergency personnel have been strengthened.
In the operation and maintenance of the “Emergency Administration of Air Pollution Occurrences Search System”, this project completed regularly held information security inspection and protection operations and routine inspections to ensure network information security, system function tests at least three times daily, annual system login pressure tests, etc. moreover, system air quality test station information interfacing and the air pollution occurrence point perimeter sensitive receptor search function has been added.
In examining the applicability of the measures and plan contents of emergency management of air pollution occurrences, 20 sessions of site visits to public and private venues required to propose air pollution occurrence measures and plans have been completed. In addition, based on the results and recommendations, the contents of amendments to operational regulations in the future have been put forth. In the promotion of major odor incident reduction and improvement, the applicability of existing air pollution prevention and control equipment targeting the discharge pipelines of odor sources manufacturing processes and air pollution prevention and control equipment has been evaluated. Furthermore, a map showing the main sources of odor pollution has been created, through which information on assisting the EPA in investigating reported cases of major odor pollution sources over the years have been summarized.
With a total of 720 hours of odor source investigation, measurements were made in two odor-sensitive areas around the Dabeishi District of the Yunlin Technology-based Industrial Park and four suspicious factory discharge pipes within the district. In addition, retesting was carried out in odor-sensitive school campuses around Guanyin Industrial Park after improvement measures were taken, and the vinyl acetate pollution source-tracking in Renda Industrial Park was also implemented. The source of dichloromethane odor in Yunlin Technology-based Industrial Park has been successfully identified to be from an aluminum alloy wheel manufacturer in the industrial park. The results of tracking measurements carried out in the odor sensitive areas around Guanyin Industrial Park in 2021 showed that the concentration of several constituents have significantly decreased, among which the main constituents were the compositions for the PTA manufacturing process (acetic acid and methyl acetate) and the PU resin manufacturing process (dimethylformamide, butanone, and toluene). The volumes of acetic acid and methyl acetate in odor-sensitive school campuses have been reduced by more than 90%, and the frequency of the “sour” odor has also been drastically reduced by 84%. Moreover, there were almost no measurements of dimethylformamide and butanone obtained on campus, and their concentrations decreased by 86% and 74%, respectively. No complaints about "fishy smell/burning odor" were made throughout the measurement period. With respect to the vinyl acetate odor source tracking in the Plant U of Renda Industrial Park, the concentration of vinyl acetate (hereinafter referred to as VA) at the rear end exhaust of the Regenerative Thermal Oxidizer (RTO) was still high. The manufacturer promised to add a chiller to the VA storage tank plant to improve condensation efficiency and increase VA recovery.
In regards to the tracking/investigation of mobile sources of pollution, a total of 480 hours of odor source investigation had been completed at the odor-sensitive points around Douliu Industrial Park and in Changhua Coastal Industrial Park Xianxi District. The investigation results showed that the main odor components found in the campus were toluene, butanone, and dimethylformamide, which was related to the emissions from a PU resin factory located upwind in the direction of north-northwest.
Four sessions of "Volume Reduction Negotiation ＆ Improvement Coordination Meeting" had been completed this year, through which guidance and assistance were provided in the hope of improving the pollution condition at odor sources, reducing odor complaints, and improving the air quality in a comprehensive way.
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