| Title: | A newly integrated dataset of volatile organic compounds (VOCs) source profiles and implications for the future development of VOCs profiles in China |
| Author(s): | Sha Q; Zhu M; Huang H; Wang Y; Huang Z; Zhang X; Tang M; Lu M; Chen C; Shi B; Chen Z; Wu L; Zhong Z; Li C; Xu Y; Yu F; Jia G; Liao S; Cui X; Liu J; Zheng J; |
| Address: | "Institute for Environment and Climate Research, Jinan University, Guangzhou 511486, PR China. School of Environment and Energy, South China University of Technology, University Town, Guangzhou 510006, PR China. Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan 523830, PR China. Institute for Environment and Climate Research, Jinan University, Guangzhou 511486, PR China. Electronic address: zheng.junyu@gmail.com" |
| DOI: | 10.1016/j.scitotenv.2021.148348 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "Volatile organic compounds (VOCs) source profiles can be used for a number of purposes, such as creating speciated air pollutant emission inventories and providing inputs to receptor and air quality models. In this study, we first collected and schematically evaluated more than 500 Chinese domestic source profiles from literature and field measurements, and then established a most up-to-date dataset of VOCs source profiles in China by integrating 363 selective VOCs profiles into 101 sector-based source profiles. The profile dataset covers eight major source categories and contains 447 VOCs species including non-methane hydrocarbons (NMHCs) species and oxygenated VOCs (OVOCs) species. The results shown that (1) VOCs composition characteristics exhibit variations for most Level-II source sectors and Level-III sub-sectors even under the same Level-I source category; (2) OVOCs, which were significantly missing in previous profiles, account for more than 95% in cooking and 20- 40% in non-road mobile, biomass burning and solvent use sources; (3) aromatics account for 20%-40% in most emission sources except cooking source, alkenes and alkynes account for ~20% in combustion sources (stationary combustion, mobile source and biomass burning), alkanes are abundant in gasoline-related emission sources(on-road mobile source and fuel oil storage and transportation); (4) missing OVOCs species could bring 30%-50% to ozone formation potentials in most emission sources; and (5) there are considerable differences in VOCs chemical groups and individual species for most emission sources between this dataset and the widely used U.S. SPECIATE database, indicating the importance of developing domestic VOCs source profiles. The dataset developed in this study can help support reactive VOCs species-based ozone control strategy and provide domestic profile data for source apportionment and air quality modeling in China and other countries or regions with similar emission source characteristics" |
| Keywords: | *Air Pollutants/analysis China Environmental Monitoring *Ozone/analysis *Volatile Organic Compounds/analysis Industrial processes Mobile source Ozone formation potential Solvent use Source profile Volatile organic compounds; |
| Notes: | "MedlineSha, Qing'e Zhu, Manni Huang, Hewen Wang, Yuzheng Huang, Zhijiong Zhang, Xuechi Tang, Mingshuang Lu, Menghua Chen, Cheng Shi, Bowen Chen, Zixi Wu, Lili Zhong, Zhuangmin Li, Cheng Xu, Yuanqian Yu, Fei Jia, Guanglin Liao, Songdi Cui, Xiaozhen Liu, Junwen Zheng, Junyu eng Netherlands 2021/06/27 Sci Total Environ. 2021 Nov 1; 793:148348. doi: 10.1016/j.scitotenv.2021.148348. Epub 2021 Jun 9" |
