Summary of Project Achievements（Brief Version）
Diesel engines are extensively used in passenger and cargo transportation vehicles and military and engineering machines. The dark smoke emitted is not only a discomfort to see, but also very harmful to human health. For better control, the key to improve air quality is to promote proper inspection and maintenance practice on vehicles in use in addition to stricter inspection regulations on new vehicles.
For this project, vehicles suspended of producing pollution were filtered out by visual inspections and reporting of good citizens, and tested for emission using dynamometer. Vehicles that failed the test were punished and asked for a second test as part of the efforts for unification of inspection and maintenance. Also, tests were carried out on gas stations, fuel reservoirs and vehicles going thorough emission test for sulfur content in fuel in order to determine whether illegal fuel was used.
The project was carried out from Jan 29 2014 up to Dec 15 2014. During this period, 2,377 diesel vehicles arrived for inspections and 52 failed with a failure rate of 2.19%. Roadside pull-over inspections were performed on 602 vehicles and 127 of them failed the inspections with a failure rate of 21.09%. In addition,1,002 diesel vehicles were asked in visual inspections to report to inspection stations for testing. 180 fuel samples were tested and 3 failed with a failure rate of 1.67%. There are 1,061 vehicles have been persuaded and checked during the period, including 28 motorcycles were idle, Among the persuaded vehicles, there were a total of 8 large vehicles, 19 other small vehicles, 1 motorcycles. 2 vehicles were reported by the public and 2 of them found requiring testing. Up to Dec 15, 2 vehicles reported to the tests and all reporters were replied.