Waste gas emissions from factories in various types of industries and motor vehicles in Changhua County have long been sources of air pollution. The change of urban land use types and promotion of public environmental awareness make number of factories reduce year by year but total quantity of motor vehicles increase, causing that waste gas emission becomes the main source of urban air pollution. Therefore, how to reduce waste gas emission from motor vehicle is an extreme significant issue of environmental protection in the County at present. The current registered number of motorcycles in the County is about 860,000, in which about 685,000 motorcycles in full 5 years from the manufacturing date are required for annual exhaust inspection. This program not only aims at notification and propaganda for periodical inspection of motorcycle but also conducts roadside patrol of those uninspected motorcycles for on-site inspection by posting note and mailing official letter; meanwhile, license plate identify system is also imported to tighten control of motorcycles in use, irregular and unfixed-point roadside inspection and interception executed, against high-pollution motorcycle from public complaints accepted and mobile inspection station set up to provide motorcycles in remote villages with periodic inspection services, which are to effectively control air pollution exhausted by motorcycles. Statistics of this program from Mar.8 to Dec.10, 2013 showed that the completion of free inspection was 114 station-times and 892 vehicle-times in mobile inspection stations. Periodic inspection for motorcycles was 438,613 vehicle-times with achievement rate of 83.6%. It can be seen the public acceptance for mandatory periodic inspection of motorcycle is increasing year after year. Additionally, guidance for periodic inspection of motorcycle in the inspection stations under administration allows inspection personnel to aggressively assist improvement or elimination of old motorcycles to put the maintenance and the inspection in one package program into practice, and promote the public to use low/non-pollution transportation equipments, etc.,, so that control effect for removal of the whole county’s pollution sources can be overall increased. Regarding pollutant reduction, the main control measure will cover acceleration of old motorcycles, improvement for the effectiveness of motorcycle’s periodic inspection and audit of motorcycle not executed periodic inspection, etc. According to pollutant reduction data from Environmental Protection Agency, NMHC reduction quantity was estimated 361.533 tons, CO 1442.962 tons and CO2757.094 tons in Changhua County in 2013. With implementation for control measure of various vehicles and cross-department cooperation as well as guidance of public promotion, this program will further achieve the improvement of actual effect and perfect performance of air quantity in Changhua County.

Low-Pollution Vehicle, Mobile source, Gaseous pollutant