| 英文摘要 |
This Project is executed from January 22, 2013 to December 31, 2013 and the main work content is to administer various air pollution control funds compilation plans and to supervise and assess the quality of execution and to achieve the expected goal of various control works. In addition, it also integrates the substantial result of this city and the local characteristics result so as to achieve the assessment result of the Environmental Protection Administration. Another point is to master and update the information of the environment loading and pollution emission of this city and to analyze the air quality monitoring result of the city and to investigate and analyze the reason of pollution in bad air quality incidents days. This information is provided to the Environmental Protection Bureau so that air pollution control strategy reviewed and modification.
The percentage of bad air quality in Tainan City falls to 0.68% in 2012 from 7.62% in 2006 and the scale of improvement reaches 91%. The percentage of bad air quality in 2013 is 3.08% in 45 stations days and this is an increase compared with 2011 and 2012.
The concentration of various air pollutants shows a descending trend from recent few years to 2012. However, in 2013 the concentration of PM10, PM2.5, SO2, and NO2 rises again and O3, NMHC, CO shows a descending trend year by year still. The hourly average 8th maximum value of O3 is lower than the regulated standard value for six consecutive years. Looking from the long-term change trend, it shows that the administration direction of Tainan City Government is correct and the air quality improvement strategies are proven as effective.
In the analysis of the structure of various emission sources and according to the TEDS8.0 emission volume database and the review update of this project, TSP is 44,229(tons/year), PM10 is 15,342(tons/year), SOx is 4,444(tons/year), NOx is 27,633(tons/year), NMHC is 45,514(tons/year) and CO is 62,391(tons/year)。
The main contribution source of PM2.5 of Tainan City is traffic emission and ammonium sulphate and the original PM2.5 emission source is mainly flying dust from driving of vehicles, diesel vehicles and bare lands. High concentration and high overrun frequency zones are all Tainan monitoring site. The PM2.5 control strategy in Tainan City will include establishment of the basic data of PM2.5, initiation of basic control work (derivative and original) and hot zone control (highly hazardous zone, highly polluted potential zone) and will be initiated in stages step by step.
In regard to the processing of quality and result in the management of the air pollution control plan, the 「Management and Assessment Grading Method for the 2013 Tainan City Air Improvement & Maintenance Project」 is formulated and management and assessment grading is conducted on various plans. In the execution of key projects, the score of the 「Diesel Vehicle Dynometer Smoke Emission Detection Project」 is the highest. In addition, in the Environmental Protection Administration Assessment Result Review, the appraisal result of 90.71 points announced by the Environmental Protection Administration in 2012 is the highest and high distinction is obtained in the assessment amongst five special municipalities.
The air pollution control strategy is in three aspects and seven control strategies and initiation of sixty three work goals in the form of using points to expand to lines and planes to reach the overall goals including Air Quality Coincidence Rate (PSI<100) reaching <97.8% in 2016 and <98.76% in 2021, maintaining ozone as Class II Control Region and raising the suspended particulates and fine suspended particles to Class II Control Region in 2021.
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