| 英文摘要 |
According to the diesel vehicle data provided by the vehicle department, there are 28,779 diesel-fueled vehicles registered in Tainan County, and 9,153 of them are buses and trucks, and 19,626 are small vehicles. Therefore, the Bureau of Environmental Protection, Tainan County started the diesel-fueled vehicle exhaust emission program by dynamometer in 1999 by entrusting the work to a consultant company that is professionally capable. The programs were carried out to encourage the owners and drivers of diesel vehicles to pay attention to the importance of vehicle maintenance for the improvement of air quality in Tainan County.
Dec 2003, the Environmental Protection Administration amended the announced test methods and added the requirement of disqualification of the horsepower ratio failing to reach the rated maximum vehicle horsepower, and as a result, the common cause of disqualification due to insufficient rpm started to reduce. However, the number of vehicles disqualified for insufficient horsepower and horsepower ratio started to climb after the implementation in 2004, and there is still 19% of vehicles inspected failing to pass the horsepower ratio test. It is obvious that the inappropriate tuning of engine still exists.
For the roadside random inspections carried out this year, the vehicles were pulled over and the drivers were asked to push the gas pedal for visual determination of exhaust. Tests were carried out on vehicles suspicious of pollution, and once determined, the owners were given a citation for the disqualification. This served as an effective deterrence to owners who tried inappropriate tuning for the dynamometer tests. Therefore, the programs achieved the maximum inspection effects with a limited number of roadside inspections. In addition, the diesel fuel used by these vehicles was inspected as well in order to stop the illegal use of diesel of high sulfide level and to prevent the sulfuric combustion products from polluting the air.
The dynamometer test station of Tainan County acquired its CNLA certification in 2001, and maintains a good quality of inspection since then for the improvement of inspection credibility. Also in Sep 2009, the station was approved by the Taiwan Accreditation Foundation (TAF), and again in Jul 2010 for the 3-year extension of accreditation. The Bureau will continue the efforts for maintaining the quality of inspection and winning the positive response for doing so.
1. Program duration
The program lasted from Aug 18 2009 to Aug 17 2010 for a total of 12 months.
3. Major achievements
(1) 2,530 diesel-fueled vehicles went through the inspections from Aug 18 2009 to Aug 17 2010 (including 409 no-loading vehicles).
(2) 2,353 vehicles were notified for visual exhaust inspection (including 271 notified by trailing cars) from Aug 18 2009 to Aug 17 2010 for this year’s program.
(3) 2,530 vehicle-times were inspected, and 2,121 were tested at full loading, which is 117.8% of the purposed number. 121 diesel vehicle tested failed the test with the failure rate of 4.78%.
(4) 113 fuel samples were taken from vehicles arriving at the station for the test, 7 from vehicles pulled over at roadside, and 40 from gas stations. In total 160 samples were taken, accounting for 100% of achievement rate.
(5) 224 vehicle-times were failing the roadside exhaust tests, accounting for 101.8% of achievement rate.
(6) Fuel samples of 22 bus or truck operators were taken for follow-up and control.
(7) The Bureau joined force with Chiayi and Yunlin for inspections, and worked with Tainan City every month for 14 times of join-force inspections for effective improvement of air quality.
(8) The Bureau worked with Chiayi City and Tainan City for 4
(9) The Bureau completed 6 inspections, once every two months, on the Yungkang Incinerator.
(10) The Bureau completed 6 fuel inspections at night time on the freeway.
(11) 10 news pieces were proposed and 7 of them were published on news media, fulfilling the contract requirement.
(12) 2 sessions of propaganda presentations were provided.
(13) The correlation test between at least 2 stations and 14 QA tests were performed, and the control diagrams were plotted.
(14) The TAF lab certification was acquired in 2001. The annual supervisory assessment was successful on Sep 29 2009, and the 3-year extension was obtained on Jul 8 2010. The system is currently up and running effectively.
(15) Vehicle inspections were available 24 days every month by reservation, including 2 of the Saturdays, and 48 vehicles booked the service in 17 days.
(16) 298 reports filed by the public were received in 2010, 76 of which came with short films or photos. 54 passed the first reviews and 40 went through the second review, where 30 passed the second review.
4. Pollutant reduction
Mileage Item TSP (tons/year)
As suggested by EPA Improvement of failure to pass the inspections 8.021
Tuning in advance 52.94
Total reduction based on the suggested mileage 60.96
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