This project was carried out from January 1, 2020 to December 31, 2020. The primary objects were to supervise and evaluate the execution qualities of the plans supported by comprehensive management of various air pollution prevention fund, so as to achieve the expected goal of various control jobs and integrate the specific effectiveness and characteristic results. It ensured the air quality in Taoyuan City to meet the standards to further gain the excellent performances assessment given by Environmental Protection Administration (EPA). Another focus was to keep track of the environmental loading and pollution emission data of Taoyuan City, analyzed the air quality monitoring results and discussed the cause of the pollution on the event day of poor air quality. The findings could serve as reference for EPA to revise the air pollution control strategy. On the other hand, this project also assist in compiling and implementing the air pollution prevention plan of Taoyuan City in accordance with the EPA policy.
Analysis the data of general monitoring stations of EPA in Taoyuan City, the proportion of good air quality (AQI≦50) is 64.3% which higher 7.9% than 2017. The air quality has improved significantly. In addition to reaching the eight-hour average of O3, the target value comply with a standard of each pollutant indicator. It shows that promotion of various control policies is reasonable in Taoyuan City. Therefore, we will continue to follow the previous version of the pollution prevention and control plan to implement various air pollution prevention and control tasks to achieve the vision of maintaining good air quality in Taoyuan City.
In addition, according to the contents of the briefing of the air pollution control plan conducted by the EPA on June 1, 2020 and the reference standards for TEDS 10.1, the project completed and submitted the first draft of the new version of the air quality control plan.
As for the emergency measures for poor air quality, there were both 38 days for the poor air quality (AQI>100) in Taoyuan City in 2020.The main pollutants of poor air quality are PM2.5 and O3. However PM2.5 is gradually being replaced by O3, become the main indicator pollutant. The notices for poor air quality in Taoyuan City and the response measures have been implemented for 35 times; in case of AQI>100 and AQI>150, the EPA informed the manufacturers to reduce the emission amount and carry out the inspection work independently. In regard to the execution effectiveness and strategy making related to air quality improvement, the data was collected monthly from automatic monitoring stations of EPA and air quality monitoring stations set by Taoyuan City on its own to conduct the analysis and the special report about the air quality analysis was proposed each quarter to deeply discuss the regional pollution problems in this city.
In the air pollution monitoring, evaluation, research and investigation operations. First, the effectiveness of each reduction strategy for different pollution source reduction, contain (weather conditions, overseas emissions, biological source emissions and initial boundary conditions). Model simulation for different pollution emission scenarios. The result is average reduction of each station for PM2.5 improvement is 1.74 μg/m3. Among reduced the most is Guanyin Station (2.06 μg/m3). All strategies are not significant for O3. When NOx decreases increase, the increase of O3 also increases. Then we attention reduction ratio with VOCs and NOx. The second part is the investigation and analysis of the average wavelength of ozone in Taoyuan City and the northern area. The analysis results show that although the high and low concentrations of ozone decrease, the intermediate concentration increases year by year, resulting in the eight-hour value of O3 continuous high. The properties of the photochemical Pingzhen station and Wanhua station are similar. The third part is a study on the correlation between air pollution and acid rain around the Taoyuan Airport. The results show that the Luzhu and Dayuan areas are subject to airport aircraft emissions, adjacent to industrial areas and the high flow of logistics transportation, leading to acidification of rainwater. In addition, the concentration of NO3- and nss-SO42- are affected by the northeast wind, which causes the concentration of each station to be different.
In terms of the works of monitoring and managing the air pollution prevention and control plan, this project checked the execution progress and quality of the air pollution prevention and control plans monthly, according to various assessment indicators. The checking results of all plans were also summarized and presented to EPA to put forward the improvement programs. In order to establish the project’s overall control directions, the following activities would be additionally conducted during the period of the project to enhance the working performances and execution qualities of every project: six times air pollution control meetings, five internal work review meetings, two air pollution fund committee meeting, one seminar of air quality district in the north, six times of field work supervision and checking. In terms of media advocacy, the mass media was used for advocacy to make the public timely master and understand that EPA devotes to various kinds of prevention and control works to create a clean and comfortable environment. At the same time, the integration of media’s active report results with a total of 21 editions. The advocacy work will be continuously executed in the future to publicize the air pollution prevention and control effectiveness in Taoyuan City by means of newspapers and broadcast to make the public know clearly about the air pollution prevention and control works of the EPA and build the public consensus, so that all the people could engage in the works of environmental protection. Besides, the project was to conduct an air quality improvement strategy seminar on January 3, 2020. It was hoped that experts will provide opinions and suggestions on various work progress and results to reach a consensus on the implementation of related business, and work together to improve the overall air quality. It is worth mentioning that the award ceremony for outstanding manufacturers of air pollution prevention and control has be held on September 29, 2020. Through public praise, it will encourage the honor of air pollution prevention and control related manufacturers and units, and can also improve the future air pollution prevention performance and results demonstrate and encourage companies to continue to respond to the spirit of environmental protection.