气候变化领域集成服务门户(CCPortal): Characterization of submicron organic particles in Beijing during summertime: Comparison between SP-AMS and HR-AMS

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DOI	10.5194/acp-20-14091-2020
	Characterization of submicron organic particles in Beijing during summertime: Comparison between SP-AMS and HR-AMS
	Wang J.; Ye J.; Liu D.; Wu Y.; Zhao J.; Xu W.; Xie C.; Shen F.; Zhang J.; Ohno P.E.; Qin Y.; Zhao X.; T. Martin S.; Lee A.K.Y.; Fu P.; J. Jacob D.; Zhang Q.; Sun Y.; Chen M.; Ge X.
发表日期	2020
ISSN	1680-7316
起始页码	14091
结束页码	14102
卷号	20 期号:22
英文摘要	Black carbon (BC) particles in Beijing summer haze play an important role in the regional radiation balance and related environmental processes. Understanding the factors that lead to variability of the impacts of BC remains limited. Here, we present observations by a soot-particle aerosol mass spectrometer (SP-AMS) of BC-containing submicron particulate matter (BC-PM1) in Beijing, China, during summer 2017. These observations were compared to concurrently measured total non-refractory submicron particulate matter (NR-PM1) by a high-resolution aerosol mass spectrometer (HR-AMS). Distinct properties were observed between NR-PM1 and BC-PM1 relevant to organic aerosol (OA) composition. Hydrocarbon-like OA (HOA) in BC-PM1 was found to be up to 2-fold higher than that in NR-PM1 in fresh vehicle emissions, suggesting that a part of HOA in BC-PM1 may be overestimated, likely due to the change of collection efficiency of SP-AMS. Cooking-related OA was only identified in NR-PM1, whereas aged biomass burning OA (A-BBOA) was a unique factor only identified in BC-PM1. The A-BBOA was linked to heavily coated BC, which may lead to enhancement of the light absorption ability of BC by a factor of 2 via the "lensing effect". More-oxidized oxygenated OA identified in BC-containing particles was found to be slightly different from that observed by HR-AMS, mainly due to the influence of A-BBOA. Overall, these findings highlight that BC in urban Beijing is partially of agricultural fire origin and that a unique biomass-burning-related OA associated with BC may be ubiquitous in aged BC-PM1, and this OA may play a role in affecting air quality and climate that has not previously been fully considered. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	aerosol; air quality; biomass burning; black carbon; comparative study; haze; mass spectrometry; radiation balance; soot; summer; traffic emission; Beijing [Beijing (ADS)]; Beijing [China]; China
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/247350
作者单位	Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, China; School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States; Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; State Environmental Protection Key Laboratory of Atmospheric Physical Modeling and Pollution Control, State Power Environmental Protection Research Institute, Nanjing, China; Department of Civil and Environmental Engineering, National University of Singapore, Singapore; Ins...
推荐引用方式 GB/T 7714	Wang J.,Ye J.,Liu D.,et al. Characterization of submicron organic particles in Beijing during summertime: Comparison between SP-AMS and HR-AMS[J],2020,20(22).
APA	Wang J..,Ye J..,Liu D..,Wu Y..,Zhao J..,...&Ge X..(2020).Characterization of submicron organic particles in Beijing during summertime: Comparison between SP-AMS and HR-AMS.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(22).
MLA	Wang J.,et al."Characterization of submicron organic particles in Beijing during summertime: Comparison between SP-AMS and HR-AMS".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.22(2020).