As having high output horse power, diesel engines have lower oil consumption than gasoline engines; thus, diesel engines are comprehensively applied to the transportation of passengers and goods military purposes or engineering machines; however, the pollutants of the black smoke discharged from diesel vehicles will significantly danger the health of human bodies according to the relevant researches; accordingly, regarding the vehicle pollution control, not only the new vehicle examination standards are becoming stricter, but also the control operations for vehicles in use should enhanced; besides, it is necessary to promote the regular maintenance and inspection in order to better the air quality.
For the purpose of effectively control the air pollution of diesel vehicles in Chiayi City, all of the routine spot check, visual inspection, other self-managements, official vehicle management ＆ control, clear zone management ＆ control, and other relevant management ＆ control measures are implemented to find out vehicles resulting in high pollution to promote improvement via relevant inspections and controls in order to reduce pollution. We also purchased the vehicle license plate recognition system this year, which can better the management of the vehicles accessing specific locations or the urban area of Chiayi City. Meanwhile, we also promote and encourage the passenger carriers, freight forwarders, official vehicles, and school buses in the administrative area to regularly maintain the vehicles and accept inspection in station so as to obtain the self-management mark. By means of combining these inspections with the promotion measures, we can focus on the management ＆ control for diesel vehicles, and supervise and urge vehicle owners to enhance the daily repair ＆ maintenance in order to reduce the discharge gas pollution discharge, better the environmental air quality, and then finally achieve the target of cleaning the environment. In addition, we perform the stop ＆ turn-off promotion, and inspection operation; in addition, we cooperate with Environmental Protection Bureau to execute the noise inspection ＆ measurement operation; further, we cooperate with the police, Vehicle Supervision Office and Environmental Protection Bureau to perform the night inspection and other operations in order to reduce the noise generated from vehicles to return a quiet space to the citizens.
The project is from March 16, 2017 to December 15, 2017; 2,589 vehicles in total have been inspected in station, where 78 vehicles fail to pass the final inspection, and the final disqualification rate is 3.0%; regarding the spot check, 295 vehicles in total have been inspected by spot check; 169 vehicles in total are disqualified by the opacity inspection, and the opacity disqualification rate is 57.3%; 1,205 diesel vehicles in total are notified by the visual smoke determination selection; the sampling inspections for 182 oil products are finished, and 1 oil product is disqualified; the disqualification rate is 0.5%; 1,096 vehicles in total are inspected by the stop ＆ turn-off inspection; moreover, 18 cases reported by the citizens are accepted, where 10 diesel vehicles need to be inspected; until 12/15, the inspections of 9 cases have been finished, and reported to the reporters.
After founding Chiayi City Air Pollution Prevention Committee in 2015, Chiayi City Government has been devoted to reduce the damage resulting from air pollution to the health of the citizens; particularly, the discharge gas from diesel vehicles is the most series problem considered by the citizens. The project uses various inspection and promotion means to force the diesel vehicles accessing the administrative area to accept the inspections and be qualified from the inspections in order to further obtain the self-management mark; we hope we can make sure that the gas discharge of all diesel vehicles accessing Chiayi City conform to the smoke discharge standards so as to reduce the pollution sources in the administrative area. Currently, the qualification rate of the diesel vehicles inspected by the gas discharge inspection station is 97.0%, where 35.5% of the vehicles obtain the self-management mark; it still needs more effort to achieve the target that all vehicles obtain the self-management mark. In the year, the major inspection targets are old Stage-1, Stage-2 and Stage-3 vehicles with high pollution; meanwhile, the project also combines with the subsidies for replacing old and large Stage-1 and Stage-2 diesel vehicles and the assistant policy of installing smoke filter on Stage-3 vehicles provided by Environmental Protection Bureau so as to effectively reduce the pollution. Until now in this year, it is estimated that PM10 31.23 ton/year and PM2.5 28.11 ton/year are reduced because of the implementation of the project according to the pollutant reduction calculation method.