Carbonyl emissions from heavy-duty diesel vehicle exhaust in China and the contribution to ozone formation potential

查看全文 作　　者：Dong [1]Dong;Min [1]Shao;Yue [1]Li;Sihua [1]Lu;Yanjun [2]Wang;Zhe [2]Ji;Dagang [2]Tang

机构地区：[1]State Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University;[2]Chinese Research Academy of Environmental Sciences

出　　处：《Journal of Environmental Sciences》索引2014年第26卷第1期,共7页

基　　金：supported by the Natural Science Foundation for Outstanding Young Scholars(No.41125018);the National Commonweal Project of the Ministry of Environmental Protection(No.201009057) 摘　　要：Fifteen heavy-duty diesel vehicles were tested on chassis dynamometer by using typical heavy duty driving cycle and fuel economy cycle. The air from the exhaust was sampled by 2,4-dinitrophenyhydrazine cartridge and 23 carbonyl compounds were analyzed by high performance liquid chromatography. The average emission factor of carbonyls was 97.2 mg/km, higher than that of light-duty diesel vehicles and gasoline-powered vehicles. Formaldehyde, acetaldehyde, acetone and propionaldehyde were the species with the highest emission factors. Main influencing factors for carbonyl emissions were vehicle type, average speed and regulated emission standard, and the impact of vehicle loading was not evident in this study. National emission of carbonyls from diesel vehicles exhaust was calculated for China, 2011, based on both vehicle miles traveled and fuel consumption. Carbonyl emission of diesel vehicle was estimated to be 45.8 Gg, and was comparable to gasolinepowered vehicles(58.4 Gg). The emissions of formaldehyde, acetaldehyde and acetone were 12.6, 6.9, 3.8 Gg, respectively. The ozone formation potential of carbonyls from diesel vehicles exhaust was 537 mg O3 /km, higher than 497 mg O3 /km of none-methane hydrocarbons emitted from diesel vehicles. 关键词：平均排放因子柴油车辆汽车尾气重型臭氧中国羰基化合物高效液相色谱法

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Carbonyl emissions from heavy-duty diesel vehicle exhaust in China and the contribution to ozone formation potential

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