In recent years, Taoyuan County is actively promoting the environmental friendly transportation vehicles, the subsidy funds have been increased from 1 million NTD in 2009 to 4.5 million NTD in 2010. After the announcement of increasing the subsidy funds in June 2010, we have been held 2 press conferences for low emission, 2 introduction meetings (to introduce the low emission and oil gas fuel vehicle), 2 demonstrations for low emission transportation vehicles, 6 sets of marquee and graphic card advertisement, and 4 print advertisements etc. By holding such activities, we have been successfully accomplished to promote 44 oil gas subsidiary dual fuel vehicles, 222 electric motorcycles, 487 electric bicycles, 182 electric subsidiary bicycles, increasing the low emission transportation vehicles in Taoyuan County dramatically.
The investigation completed the test of toxic emission of 11 diesel vehicles, testing items including PM2.5, PM10, and PAHs concentration in solid form, traffic flow in 9 main roads both on ordinary days and holidays, travel time of 19 main roads and arrearage investigation. Through these investigation information and testing statistics, together with the planning accomplishment in mobile polluting sources of Taoyuan County, we have drafted the emission factors and polluting map of Taoyuan County, completed 64 polluting maps in total. We have divided the polluting area of Taoyuan County into Taoyuan Towm, Zhongli Town, and Yangmei Town, etc. respectively. After the consolidation of these polluting areas, we provided these maps to Environmental Protection Bureau to strengthen the inspection of most polluted area, so as to improve the pollution conditions of these areas.
Regarding the test analysis of toxic emission of diesel vehicles in 2009 and 2010, the test analysis of the toxic emission (NOx, CO, SO2, PM10, PM2.5 and PAHs) in driving cycle, and together with relevant the research literatures overseas, we established the characteristics of toxic emission of diesel vehicles through a series of evaluations. Emission factor of air pollution sources attribute more and more to the civil diesel vehicles, in order to understand the polluting characteristics of mobile polluting sources (NOx, CO, SO2, PM10, PM2.5 and PAHs) to the air, this paper analyzed the emission of mobile polluting sources (NOx, CO, SO2, PM10, PM2.5 and PAHs) to the air of 26 diesel vehicles from 2009 to 2010, and compare the analysis results with the results imitated by Mobile 6.2, we found that the buggy below 3.5 tons has higher emission factor of CO and PAHs; the short-range bus has the highest emission factor of NOx; the long-range bus and excursion train has the highest emission factor of NOx; trucks above 3.5 tons has higher emission factor of CO, NO and PAHs; the container traction car has higher emission factor of NOx and PAHS. According to the result of imitated mode, the Environmental Protection Bureau of Taoyuan County can subsequently use such results as the basis of supervision and control the emission for diesel vehicles.
Besides, this paper also collected the development history and plan of transportation system of Taoyuan County, and fully understood the problems encountered in the transportation system and the subsequent transportation plan formulated by Road Transportation Bureau, we have drafted the proposals for low emission transportation vehicles that might fit to Taoyuan County, including: 1. Promote to use low emission transportation vehicles in the industrial area; 2. Build up road network for bicycle; 3. Improve the use efficiency of public transportation systems; 4. Supervise and control the use of high emission transportation vehicles; 5. Build up energy infrastructure systems for low emission transportation vehicles; 6. Promote to use the dual fuel bus, etc. Through these strategies, we expect to make the air quality in Taoyuan County better.
We tested the black carbon in Zhongzheng Road, Zhongshan Road, Jieshou Road, Sanmin Road and Chunri Road, Taoyuan Town. According to the road mobile test results, the pollution condition in the morning is worse than that in the afternoon, and after a long-term test, we realized that the black carbon take up a stable percentage of PM2.5, When the concentration of PM2.5 increases or decrease, it’s indicating that the emission resource of transportation vehicles must exists.
According to the mobile sources test analysis carried out in 2009 and 2010, by analyzing the pollution may, this paper conclude the major polluted areas of the County as follows:
1. Taoyuan Town: National road No. 1 & No. 2
2. Zhongli Town: County road No. 110
3. Yangmei Town: National road No. 1
4. Daxi Town: Provincial road No. 4, and National road No. 3
5. Longtan District: Provincial road No. 3 and Provincial road No. 3, part 2
Subsequently, the Environmental Protection Bureau shall actually investigate the pollution characteristics of these areas, and evaluate the reasons why the pollution conditions in these areas are worse, so as to understand the emission characteristics of these polluted area. Besides, the Bureau can strengthen the inspections of pollution sources of these areas, control and restrain the polluting vehicles effectively via administrative control program.
