Wu Xiaoqing, the deputy minister of the Ministry of Environmental Protection, recently said that the treatment of air pollution should further deepen the pollution control of motor vehicles. The Ministry of Environmental Protection has reportedly requested the State Council to approve the implementation of the Fourth National Standard in advance in cities such as Beijing, Shanghai and Guangzhou, Beijing to implement the National Five Standard in advance, and encourage cities such as Guangzhou and Shanghai to implement higher national emission standards in advance.
The national five standard is equivalent to the European Union's Euro V standard. The European Union has implemented it since 2009, and its restrictions on the emission of nitrogen oxides, hydrocarbons and other motor vehicles are more stringent. From the first to the fourth national level, cycling pollution is reduced by 30% to 50% for each standard raised.
The use of the new standard of gasoline and diesel will reduce a number of pollutants, reduce the emission of PM2.5 from the country four to the country five, environmental protection and other indicators have been further tightened, including sulfur content from 50ppm down to 10ppm, oil quality has also been further improved. The Opinion draft also changed the gasoline grades for automobiles from No. 90, No. 93 and No. 97 to No. 89, No. 92 and No. 95. The replacement of phase IV of vehicle gasoline and diesel in phase V will achieve at least 10% and 7% reduction in nitrogen oxides. After the implementation of the new standard, the sulfur content in the fuel is only one-fifth of the previous, and because the quality of the oil is improved, the combustion will be more fully. Therefore, the PM2.5 emission in the exhaust gas can be directly reduced.
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Recently, the reporter learned from the Beijing Automobile Emissions Management Center that from the implementation of the fifth-phase motor vehicle emission standards in Beijing on March 1, 2013, all on-sale vehicles in Beijing have been qualified.
Beijing Municipality has officially implemented the fifth-phase motor vehicle emission standards since March 1. At the same time, it has stopped registering and selling light-duty gasoline vehicles that do not comply with the Beijing V emission standard. The Beijing Municipal Environmental Protection Agency has also begun sampling inspections of vehicles on sale to ensure vehicles. Meet emission standards.
Liu Xian, chief engineer of the Beijing Automobile Emission Management Center, said that the formal inspection mainly includes three items. First, at room temperature, the vehicle is placed on a rotating drum test bench to simulate the actual driving conditions of the vehicle, and the exhaust gas is collected to measure and analyze the concentration of each pollutant discharged, through the simulated distance traveled by the vehicle, the exhaust gas flow, and Concentration of pollutants calculates whether the pollutants discharged per kilometer of the vehicle during actual driving meet the standard. This experiment is to detect carbon monoxide, hydrocarbons, nitrogen oxides, and carbon dioxide. At the same time, particulate matter should be detected in direct-injection gasoline vehicles.
Second, the pollutants emitted by the vehicle during idling and high speeds will be tested. Finally, at a certain speed, check whether the crankcase of the vehicle emits pollutants. All tests are qualified before the vehicle can be found to meet emission standards.
Liu Xian said that this year will try to do a full coverage sampling inspection of all models sold in Beijing to ensure that vehicles meet emission standards.
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