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DOI	10.5194/acp-20-13303-2020
	Differences in the composition of organic aerosols between winter and summer in Beijing: A study by direct-infusion ultrahigh-resolution mass spectrometry
	Steimer S.S.; Patton D.J.; Vu T.V.; Panagi M.; Monks P.S.; Harrison R.M.; Fleming Z.L.; Shi Z.; Kalberer M.
发表日期	2020
ISSN	16807316
起始页码	13303
结束页码	13318
卷号	20 期号:21
英文摘要	This study investigates the chemical composition of PM2.5 collected at a central location in Beijing, China, during winter 2016 and summer 2017. The samples were characterised using direct-infusion negative-nano-electrosprayionisation ultrahigh-resolution mass spectrometry to elucidate the composition and the potential primary and secondary sources of the organic fraction. The samples from the two seasons were compared with those from a road-tunnel site and an urban background site in Birmingham, UK, analysed in the course of an earlier study using the same method. There were strong differences in aerosol particle composition between the seasons, particularly regarding (poly-)aromatic compounds, which were strongly enhanced in winter, likely due to increased fossil fuel and biomass burning for heating. In addition to the seasonal differences, compositional differences between high- and low-pollution conditions were observed, with the contribution of sulfur-containing organic compounds strongly enhanced under high-pollution conditions. There was a correlation of the number of sulfur-containing molecular formulae with the concentration of particulate sulfate, consistent with a particle-phase formation process. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	aerosol composition; biomass burning; concentration (composition); fossil fuel; mass spectrometry; particulate matter; sulfate; summer; winter; Beijing [Beijing (ADS)]; Beijing [China]; Birmingham [Birmingham (DST)]; Birmingham [England]; China; England; United Kingdom
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/143828
作者单位	Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, United Kingdom; Department of Environmental Sciences, University of Basel, Basel, 4056, Switzerland; Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B1 52TT, United Kingdom; National Centre for Atmospheric Science (NCAS), Department of Chemistry, University of Leicester, Leicester, United Kingdom; Department of Physics and Astronomy, Earth Observation Science Group, University of Leicester, Leicester, United Kingdom; Department of Chemistry, University of Leicester, Leicester, United Kingdom; Department of Environmental Sciences, Center of Excellence in Environmental Studies, King Abdulaziz University, P.O. Box 80203, Jeddah, Saudi Arabia; Department of Environmental Science, Stockholm University, Stockholm, 106 91, Sweden; Center for Climate and Resilience Research (CR2), Departamento de Geofísica, Universidad de Chile, Santiago, Chile
推荐引用方式 GB/T 7714	Steimer S.S.,Patton D.J.,Vu T.V.,et al. Differences in the composition of organic aerosols between winter and summer in Beijing: A study by direct-infusion ultrahigh-resolution mass spectrometry[J],2020,20(21).
APA	Steimer S.S..,Patton D.J..,Vu T.V..,Panagi M..,Monks P.S..,...&Kalberer M..(2020).Differences in the composition of organic aerosols between winter and summer in Beijing: A study by direct-infusion ultrahigh-resolution mass spectrometry.Atmospheric Chemistry and Physics,20(21).
MLA	Steimer S.S.,et al."Differences in the composition of organic aerosols between winter and summer in Beijing: A study by direct-infusion ultrahigh-resolution mass spectrometry".Atmospheric Chemistry and Physics 20.21(2020).