Emissions of non-methane hydrocarbons from cars in China

作     者：DAI TianYou,WANG Wei,REN LiHong,CHEN JianHua & LIU HongJie Chinese Research Academy of Environmental Science,Beijing 100012,China 

作者机构：Chinese Research Academy of Environmental Science Beijing China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2010年第53卷第1期

页      面：263-272页

核心收录：

学科分类：08[工学] 082303[工学-交通运输规划与管理] 0703[理学-化学] 082302[工学-交通信息工程及控制] 0823[工学-交通运输工程] 

基　　金：support from the Environmental Defense Fund Program of National Natural Science of China (Grant No.40775075) the State Key Development Program for Basic Research of China (Grant Nos.2002CB211605,2002CB410801 & 2003CB415003) R & D Infrastructure and Facility Development Program (Grant No.2003DEB5J059) the MOST’s Project (Study on air pollution and its control strategy in Beijing City) 

主　　题：emission factor isoprene pinene photochemical reactivity Beijing driving cycle car 

摘      要：This study investigated the exhaust emission of non-methane hydrocarbons(NMHCs) from cars in China at the Beijing driving cycle on the chassis *** emission factor average of NMHCs was 0.9 g/km,which was over twice that from the Australian car fleet and 2-4 times that of the American car emission in the *** emission profile of Beijing cars showed higher fractions of aromatics and C4?C7 HCs,and lower percentages of C2?C3 HCs,compared with those of the US car *** average ratio of benzene/toluene for cars tested was 0.5,the average benzene/toluene/ethyl benzene/xylenes(BTEX) ratios were 1/2.2/0.1/1.8,which were consistent with those of the Tanyugou tunnel located in the suburb of Beijing.α-pinene and β-pinene were detected from the exhaust gas on dynamometer for the first time,and had likely similar exhaust emission characteristics with C2?C3 HCs and styrene,giving an evidence that air pinenes may be related to human *** was also detected *** observations suggest that the procedure regarding pinenes and isoprene as coming from biologic sources of VOCs in the atmosphere should be applied with great care,especially in the core of the big city like *** specific reactivity of NMHCs was higher than that of cars of US,and the specific reactivity of volatile aromatic compounds was higher than that of the US SPECIATE database.