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据公安部交管局统计,截至2017年3月底,全国机动车保有量首次突破3亿辆,其中汽车达2亿辆,机动车驾驶人超3.64亿人,其中汽车驾驶人3.2亿人。随着群众驾车出行需求不断提高,汽车市场潜力持续释放,汽车保有量保持快速增长,近5年年均增加1 400万辆机动车,与此同时汽车排放的污染物总量也不断攀升。当前,我国机动车污染防治形势十分严峻。一是机动车排放总量居高不下。目前,我国机动车排放各类大气污染物4 607万t,其中,氮氧
According to the statistics released by the Ministry of Public Security, as of the end of March 2017, the number of motor vehicles in China exceeded 300 million for the first time, of which 200 million were motor vehicles and 364 million were motorcyclists, of which 320 million were motorists. With the increasing demand of people for driving and traveling, the potential of the automobile market continues to be released and the number of vehicles kept growing at a rapid pace. Over the past 5 years, the average annual increase of 14 million motor vehicles has been accompanied by an increase in the total amount of pollutants emitted by vehicles. At present, the situation of prevention and control of motor vehicle pollution in China is very serious. First, the total vehicle emissions remain high. At present, all kinds of air pollutants discharged by motor vehicles in our country are 40.77 million tons, of which, nitrogen and oxygen