| Title: | "Sources of ambient non-methane hydrocarbon compounds and their impacts on O(3) formation during autumn, Beijing" |
| Author(s): | Li F; Tong S; Jia C; Zhang X; Lin D; Zhang W; Li W; Wang L; Ge M; Xia L; |
| Address: | "College of Chemistry, Liaoning University, Shenyang 110036, China; State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. Electronic address: tongsr@iccas.ac.cn. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Oasis Ecology, College of Resource and Environment Sciences, Xinjiang University, Urumqi 830046, China. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences, Beijing 100029, China. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China. College of Chemistry, Liaoning University, Shenyang 110036, China; Department of Chemical and Environmental Engineering, Yingkou Institute of Technology, Yingkou 115014, China. Electronic address: lixinxia@lnu.edu.cn" |
| DOI: | 10.1016/j.jes.2021.08.008 |
| ISSN/ISBN: | 1001-0742 (Print) 1001-0742 (Linking) |
| Abstract: | "The field observation of 54 non-methane hydrocarbon compounds (NMHCs) was conducted from September 1 to October 20 in 2020 during autumn in Haidian District, Beijing. The mean concentration of total NMHCs was 29.81 +/- 11.39 ppbv during this period, and alkanes were the major components. There were typical festival effects of NMHCs with lower concentration during the National Day. Alkenes and aromatics were the dominant groups in ozone formation potential (OFP) and OH radical loss rate (L(OH)). The positive matrix factorization (PMF) running results revealed that vehicular exhaust became the biggest source in urban areas, followed by liquefied petroleum gas (LPG) usage, solvent usage, and fuel evaporation. The box model coupled with master chemical mechanism (MCM) was applied to study the impacts of different NMHCs sources on ozone (O(3)) formation in an O(3) episode. The simulation results indicated that reducing NMHCs concentration could effectively suppress O(3) formation. Moreover, reducing traffic-related emissions of NMHCs was an effective way to control O(3) pollution at an urban site in Beijing" |
| Keywords: | *Air Pollutants/analysis Beijing China Environmental Monitoring/methods Hydrocarbons/analysis Methane *Ozone/analysis Vehicle Emissions/analysis *Volatile Organic Compounds/analysis Festival effects Master chemical mechanism Non-methane hydrocarbon compou; |
| Notes: | "MedlineLi, Fangjie Tong, Shengrui Jia, Chenhui Zhang, Xinran Lin, Deng Zhang, Wenqian Li, Weiran Wang, Lili Ge, Maofa Xia, Lixin eng Netherlands 2022/04/24 J Environ Sci (China). 2022 Apr; 114:85-97. doi: 10.1016/j.jes.2021.08.008. Epub 2022 Jan 16" |
