In order to lessen the impact of black smoke emission from diesel vehicles on the air quality, Environmental Protection Bureau of Taichung City Government continue the project of "Inspections of Diesel Vehicle Emission and Illegal Diesel Oil" to conduct the quality control of diesel vehicle emission, diesel oil and associated works. The reduction of black smoke emissions from diesel vehicles and the management of illegal diesel oil are the focus of this year. The working items include smoke emission dynamometer inspection, roadside inspection, visual inspection of high-pollution vehicles and illegal oil inspection, associated with the Taichung Harbor control project, self-management of diesel vehicles, license plate recognition system, and vehicle emissions inspection ＆ maintenance (I/M) program. The testing results indicate that 246 of 7,693 vehicles (3.2%) failed under full-load smoke emission inspection in the smoke emission dynamometer station; 119 of 603 vehicles (19.7%) failed in road inspection/no-load inspection station. The number of diesel vehicle notified to dynamometer station under visual inspection was 4,079. The sampling tests of diesel oil were 36 including 24 of sulfur content and 12 of aromatics. The elimination old diesel vehicles application document accepted 1,379 pieces and 65 pieces of diesel particulate filter application. In order to control black smoke emission from diesel vehicles, three sets of license plate recognition system were constructed. The project conducted at least 6 times of visual inspection, 2 times of roadside inspection for diesel vehicles and 3 times of visual inspection for cargoes each month. To encourage the cargo industries, clean vehicles and school bus in Taichung City conducting regular maintenance and inspection, a system of self-management and maintenance and inspection program are recommended and issues the permit of diesel vehicles. To safely guard residence health, protect living surroundings and improve the life quality, Environmental Protection Bureau of Taichung City strengthens the control of diesel vehicle emissions to reduce mobile pollution sources to achieve clean environment

Diesel Vehicle