Volatile organic compounds (VOCs) source profiles of on-road vehicle emissions in China
Volatile organic compounds (VOCs) source profiles of on-road vehicle emissions in China
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中国道路车辆排放挥发性有机化合物（VOCs）来源概况
DOI：
10.1016/j.scitotenv.2017.07.001
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发表时间：
2017
影响因子：
9.8
通讯作者：
Chang hong Chen
中科院分区：
文献类型：
--
作者：
Hong li Wang;Sheng ao Jing;Sheng rong Lou;Qing yao Hu;Li Li;Shi Kang Tao;Cheng Huang;Li ping Qiao;Chang hong Chen
道路车辆中挥发性有机化合物(VOCs)的来源分布被广泛研究，因为它们在特大城市的VOCs来源解析和减排措施中起着至关重要的作用。本文总结了2001-2016年间道路机动车VOCs源分布的研究，重点比较了不同研究之间的差异以及不同因素对VOCs来源的潜在影响。一般来说，非甲烷碳氢化合物在道路车辆排放的来源中占主导地位。作为汽车尾气中潜在的重要成分，过去在汽车的VOCs排放中很少考虑到羰基化合物，应该在进一步的研究中给予更多的关注。不同研究的VOCs源分布有一定的差异，提取了6个因素对道路车辆VOCs源分布的影响进行了研究。车辆类型、发动机类型和燃料类型是影响车辆VOCs来源分布的两个主要因素。相比之下，点火、行驶条件和累积里程的影响主要是由于它们对燃烧效率的影响。一个开放和互动的汽车尾气挥发性有机化合物数据库在未来至关重要，应该形成分享和输入相关研究成果的机制，以鼓励研究人员加入数据库的建立。相应地，详细的质量保证和质量控制程序也非常重要，其中包括尽可能详细的测试车辆信息和测试方法。在上述社区的基础上，可以对VOCs排放谱进行更好的不确定性分析，这对于了解车辆排放的VOCs排放特性至关重要。
Volatile Organic Compounds (VOCs) source profiles of on-road vehicles were widely studied as their critical roles in VOCs source apportionment and abatement measures in megacities. Studies of VOCs source profiles from on-road motor vehicles from 2001 to 2016 were summarized in this study, with a focus on the comparisons among different studies and the potential impact of different factors. Generally, non-methane hydrocarbons dominated the source profile of on-road vehicle emissions. Carbonyls, potential important components of vehicle emission, were seldom considered in VOCs emissions of vehicles in the past and should be paid more attention to in further study. VOCs source profiles showed some variations among different studies, and 6 factors were extracted and studied due to their impact to VOCs source profile of on-road vehicles. Vehicle types, being dependent on engine types, and fuel types were two dominant factors impacting VOCs sources profiles of vehicles. In comparison, impacts of ignitions, driving conditions and accumulated mileage were mainly due to their influence on the combustion efficiency. An opening and interactive database of VOCs from vehicle emissions was critically essential in future, and mechanisms of sharing and inputting relative research results should be formed to encourage researchers join the database establishment. Correspondingly, detailed quality assurance and quality control procedures were also very important, which included the information of test vehicles and test methods as detailed as possible. Based on the community above, a better uncertainty analysis could be carried out for the VOCs emissions profiles, which was critically important to understand the VOCs emission characteristics of the vehicle emissions.