Mobile pollution source is the main cause for the urban air quality decline, the diesel vehicle exhaust emission is concerned by both environmental and transportation departments as control priority. In order to control the issue of diesel vehicle exhaust, the EPA has set up diesel vehicle emission inspection station in each local authority and together with public reported the emission fact and visual inspector to inform those may contain high level of pollutant vehicles to take. Above all is to reduce the diesel vehicle smoke emission situation.
For better inspection quality in every counties and cities, the EPA in order to has improve quality on diesel vehicle exhaust emission inspect station, and to strengthen diesel vehicle database system each function. The EPA to execute as the demonstrative the current year’s in-use diesel vehicle I/M, the examination of archive in every diesel vehicle exhaust emission inspect stations, the diesel vehicles database system has been relaunched, to gather the diesel vehicles’ relevant control policies, including the countries such as the EU, USA, Japan and so forth, the latest foreign diesel vehicles’ pollution control technology, and to evaluate of executing the NOx pollutant discharge inspection on operating diesel vehicles under non-idle, and opacity smoke meter have replace reflection type smoke meter feasibility comparison tests.
Moreover, EPA has consideration only our country using reflection type smoke meter of the world, it will confront smoke meter unable maintain or to lack expendables, this project brought up 6 programs, final recommendations to the program 3(cancel 3 full-load testing point, retaining only checking horsepower ratio) as "Method of test for exhaust smoke for diesel vehicle" the draft change direction in this year. Other related works include the arrangement of various meetings and the publication of promotion materials. The results will be presented in the report in detail.