| Title: | An updated comprehensive IVOC emission inventory for mobile sources in China |
| Author(s): | Zhao J; Qi L; Lv Z; Wang X; Deng F; Zhang Z; Luo Z; Bie P; He K; Liu H; |
| Address: | "State Key Joint Laboratory of ESPC, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, School of Environment, Tsinghua University, Beijing 100084, China. State Key Laboratory of Plateau Ecology and Agriculture, College of Eco-environmental Engineering, Qinghai University, Xining 810016, China. State Key Joint Laboratory of ESPC, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, School of Environment, Tsinghua University, Beijing 100084, China. Electronic address: liu_env@tsinghua.edu.cn" |
| DOI: | 10.1016/j.scitotenv.2022.158312 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "Intermediate volatility organic compounds (IVOCs) from mobile sources contribute significantly to secondary organic aerosol (SOA) formation. However, the assessments of IVOC emissions remain considerably uncertain due to the lack of localized measured data and detailed emission source classifications. This study established a comprehensive database of IVOC emission factors (EFs) for mobile sources based on the diversified measured EFs and correlations with hydrocarbons. The provincial-level IVOC emission inventories over China were further established by integrating activity data of various mobile sources. The national mobile source IVOC emissions were 507.5 Gg in 2017. The IVOC emissions of on-road and non-road mobile sources were roughly the same. Trucks and non-road construction machineries were the major contributors to IVOC emissions, accounting for >66 % of the total. The IVOC emission characteristics and spatial distributions from various mobile sources varied significantly with different types and usages. The IVOC emission inventories with detailed classifications can be used to evaluate emission control policies for mobile sources. Incorporating localized measured data would be beneficial for a better understanding for the atmospheric impacts of mobile source IVOC emissions" |
| Keywords: | Vehicle Emissions/analysis Aerosols/analysis *Volatile Organic Compounds/analysis Motor Vehicles Hydrocarbons China *Air Pollutants/analysis Emission factors (EFs) Emission inventory Intermediate volatility organic compounds (IVOCs) Mobile sources; |
| Notes: | "MedlineZhao, Junchao Qi, Lijuan Lv, Zhaofeng Wang, Xiaotong Deng, Fanyuan Zhang, Zhining Luo, Zhenyu Bie, Pengju He, Kebin Liu, Huan eng Netherlands 2022/08/31 Sci Total Environ. 2022 Dec 10; 851(Pt 2):158312. doi: 10.1016/j.scitotenv.2022.158312. Epub 2022 Aug 28" |
