There are many well-known sightseeing spots in Taoyuan City, such as Xiaowulai in the Fuxing District and Cihu in the Daxi District, also the international airport is located in this city, hence known as the capital of the Country and important cargo transfer stations, traffic flow increased year by year. At the end of May 2016, 21,622 vehicles of diesel bus/big truck, and about 26,000 vehicles of diesel small truck, registered in this City, about 30 percent of them are old diesel vehicles (the diesel vehicles factory before June 30, 1999), according to the data analysis year by year check, shows nearly 10% of the one/two term old diesel vehicle exhaust do not meet the standards. In June 2012, the International Agency for Research on Cancer (IARC) of the World Health Organization (WHO) announced the diesel engine exhaust as the first class of carcinogenic substances, same as arsenic and asbestos. Diesel exhaust has a significant impact to the environment and human health. In order to maintain air quality, strict control of high-pollution diesel vehicles is necessary. This project aims at inspecting the diesel vehicles in use and the relevant propaganda. By means of roadside inspection and visual inspection, the diesel vehicles are informed of the inspection of the diesel vehicles in the station. By the implementation of this plan, propaganda and banned, and other mutual cooperation, urge vehicle users to develop vehicle maintenance and repair habits, in order to reduce the emission of diesel black smoke, effective control and improve air quality.

Emission visual identification, roadside pull-over emission inspections,pollution level, opacity