In order to continue to achieve the goal of improving air quality, the “Yunlin County Air Quality Maintenance Integrated Management Plan” was implemented, and the implementation period was from August 25, 2008 to August 24, 2006. As of August 24, 2006, all work has been completed in accordance with the contract, and the preliminary results are explained below.
Among the indicators of poor air quality in the county's stations over the years, from March to September each year, ozone is mainly used as indicator pollutants, while in January-February and October-December, suspended particulates are dominant. In the past two years, the number of bad stations has been declining year by year. The number of bad stations in the year of 105 is only 4 stations, which is the lowest in the calendar year. It can be seen that all the controls in recent years have been effective. However, the number of bad stations in the past years is more in the month of September than in April.
According to the Air Pollution Index (PSI), the indicator pollutants are mainly suspended particles; in terms of air quality indicators (AQI), most of them are mainly fine aerosols. The 105-day bad day is 4 stations, and the number of stations with suspended particulates exceeding the standard is 2 stations, all of which are Lunbei stations (PSI and 144 and 105 respectively). They are mainly affected by the northeast monsoon, and the surface wind speed is enhanced. Dust phenomenon; the ozone bad day is 2 stations, which are Douliu Station (PSI is 112) and Lunbei Station (PSI is 103). The possible reasons are presumed to be poor atmospheric diffusion and easy accumulation of pollutants. The photochemical reaction is carried out, resulting in a high ozone concentration. From the reduction of bad days in recent years, it can be seen that Yunlin County has obvious effects in the control of suspended particulates and fine aerosols.
The county's air pollution prevention and control plan, in response to the EPD's promotion of the "Clean Air Action Plan" in October 105, shortened the implementation period to 108 years (formerly 109 years), so the county strengthened each Control measures and propose more innovative ways to enhance the air quality of Yunlin County. Use the emissions of TEDS 9.0 to target point, line and non-point source emissions in Yunlin County.
The pollutants emitted by the flue of the Liuqing Industrial Zone are represented by SO2, and the area affected by it is mainly in the Taixi area, followed by the Maiji area and the Sihu area, indicating that the main wind is still the affected area. In addition, the concentration of O3 is the highest in the Taixi station. It can be seen that after the pollutants are discharged, the accumulation of pollutants and the formation of photochemical reactions begin in Taixi. The Xiluo station in the special industrial zone empty product station is located in Xiluo Guangxing Guoxiao. In this analysis, PM10, NOX, NO and NO2 are the highest concentration stations, but SO2, O3, Both CO and THC are stations with the lowest concentration, indicating that they are still affected by a certain degree of primary pollution sources. Derivative pollutants should be mainly affected by nitrates, surrounding bare areas, agricultural activities and folk activities. Etc., or the phenomenon of pollutant transport in Changhua County, may be a factor in the higher concentration of Xiluo station.
To implement air pollution control through cross-office cooperation to implement a number of control strategies to reduce pollutant emissions through source control, process inspection and end-of-pipe tightening, such as subsidizing factories to switch to natural gas or low sulfur content (0.15%) The fuel oil, the specific process to add anti-cavity facilities to reduce VOCs emissions, tightening the license review to shorten the license period and reduce the amount of nuclear fuel, subsidize the old two-stroke locomotive, promote the electric car, bare ground green, turbid water stream dust control Wait to reduce the emissions of pollution sources in the county. Assist the EPA in implementing the Yunlin County Suspended Particle Reduction Control Action Plan. This year, the Air Pollution Prevention and Control Committee will be held on December 30, 2010 and July 19, 2006 to increase horizontal communication, integration, and common maintenance. The air quality of Yunlin County, the results of the 105 annual reductions are as follows: PM2.5: 196.35 tons, PM10: 1,940.634 tons, SOx: 1,099.739 tons, NOx: 2,600.047 tons; NMHC 304.63 tons, all meet the target set in the year of 105.
