This project was carried out from July 2, 2017 to July 1, 2018. The main working contents included the supervision and evaluation on plan execution quality prepared according to comprehensive management of various air pollution prevention and control funds, 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 performance assessment given by the Environmental Protection Administration. Another focus is to keep track of the environmental load and pollution emission data of Taoyuan City, analyze the air quality monitoring results and discuss the cause of the pollution on the event day of poor air quality. The findings can serve as reference for the Environmental Protection Administration to revise the air pollution control strategy.
After the analysis of the general monitoring station of the Environmental Protection Administration in Taoyuan City, the proportion of (excluding the effect of sand and dust) poor air quality (AQI>100) has presented the trend of improvement year by year from 2008 to 2017, while the proportion of good air quality (AQI≦50) tend to rise year by year. In terms of the number of days of deterioration of poor air quality (AQI>100), PM2.5 accounts for the largest proportion, meaning PM2.5 remains to be the major cause of poor air quality. In 2017, the concentration for various air pollutants in Taoyuan City has been improved. Apart from the manual and automatic annual average of PM2.5 and the 8th largest value of O3 within 8 hours, the concentration of other pollutants all meet the air quality standard.
In terms of the work 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 plan every month according to various assessment indicators. It also summarized the check results of each project to present them to the Environmental Protection Administration to put forward the improvement program. In order to establish the project’s overall control direction, the following activities will be additionally conducted during the period of the project to enhance the work performance and execution quality of each project: 2 education and training meetings about the comprehensive prevention and control of air pollution, 1 trans-bureau emergency response negotiation meeting, 3 explanation meetings about the air pollution prevention and control act in catering industry, 6 times of field work supervision and check, 2 expert consultation meetings, 3 internal work review meetings, 1 symposium about the exchange of air quality district in the north and 2 air pollution fund committee meetings.
As for the emergency measures for poor air quality, there are respectively 62 days and 54 days for the poor air quality (AQI>100) in Taoyuan City in 2016 and 2017 according to the statistics, among which the main pollutants for poor air quality are PM2.5 and O3. According to the statistics in 2017, the notices for poor air quality in Taoyuan City and the response measures have been implemented for 80 times; in case of AQI>100 and AQI>150, the Environmental Protection Administration informs the manufacturers to independently reduce the emission amount and carry out the inspection work. In regard to the execution effectiveness and strategy making related to air quality improvement, the materials are collected each month from automatic monitoring station of the Environmental Protection Administration and air quality monitoring station set by Taoyuan City on its own to conduct the analysis and the special report about the air quality analysis is proposed each quarter to deeply discuss the regional pollution problems in this city.
In terms of the analysis of dissipation-source aerosol’s emission pattern, the investigation has been completed this year to establish the emission coefficient of the local open ground in this city. As for the air pollution monitoring evaluation or investigation work, the work is conducted respectively in acid rain and miniature monitoring station. In the part of acid rain, the rainfall event database is established through meteorological information, the data of air quality monitoring station and the rainfall’s chemical analysis results. Based on the work results of this analysis, the acid rain in this city is indeed, to some degree, affected by the foreign pollutants. In the future, the rainfall event records made by this project can be used in the situation when the rainfall may be affected by foreign pollutants to provide them in the early-warning operation. The concentration of the major acidic ions of NO3- and nss-SO42- in the rainwater is highly correlated to the concentration of aerosols, which shows that the rainwater’s pollution degree is closed related to the air quality. A total of 50 point locations have been integrated in the miniature monitoring station and the functions of cloud platform system will be further designed. In order to subsequently make an effective use of the pollutant concentration exported by miniature monitoring station, the concentration diffusion diagram will be used as the center of the cloud platform to continuously promote the platform update.
In terms of media advocacy, the mass media is used for advocacy to make the public timely master and understand that the Environmental Protection Administration is devoted to various kinds of prevention and control work to create a clean and comfortable environment. At the same time, the news release and advocacy manuscript have been respectively published on the website of Environmental Protection Administration for 5 times and 66 times to help with the integration of media’s active report results, with a total of 57 editions; besides, the seminar on the strategy of air pollution prevention and control business was held during the period from April 27 to April 28, 2018, where the experts and scholars in each county and city can share and exchange the control results. The advocacy work will be continuously done 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 work contents of the Environmental Protection Administration and build the public consensus, so that all the people can engage in the work of environmental protection.