气候变化领域集成服务门户(CCPortal): Measurement report: Large contribution of biomass burning and aqueous-phase processes to the wintertime secondary organic aerosol formation in Xi'an, Northwest China

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DOI	10.5194/acp-22-10139-2022
	Measurement report: Large contribution of biomass burning and aqueous-phase processes to the wintertime secondary organic aerosol formation in Xi'an, Northwest China
	Duan, Jing; Huang, Ru-Jin; Gu, Yifang; Lin, Chunshui; Zhong, Haobin; Xu, Wei; Liu, Quan; You, Yan; Ovadnevaite, Jurgita; Ceburnis, Darius; Hoffmann, Thorsten; O'Dowd, Colin
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	10139
结束页码	10153
卷号	22 期号:15 页码:15
英文摘要	Secondary organic aerosol (SOA) plays an important role in particulate air pollution, but its formation mechanism is still not fully understood. The chemical composition of non-refractory particulate matter with a diameter <= 2.5 mu m (NR-PM2.5), OA sources, and SOA formation mechanisms were investigated in urban Xi'an during winter 2018. The fractional contribution of SOA to total OA mass (58 %) was larger than primary OA (POA, 42 %). Biomass-burning-influenced oxygenated OA (OOA-BB) was resolved in urban Xi'an and was formed from the photochemical oxidation and aging of biomass burning OA (BBOA). The formation of OOA-BB was more favorable on days with a larger OA fraction and higher BBOA concentration. In comparison, the aqueous-phase processed oxygenated OA (aq-OOA) was more dependent on the secondary inorganic aerosol (SIA) content and aerosol liquid water content (ALWC), and it showed a large increase (to 50 % of OA) during SIA-enhanced periods. Further van Krevelen (VK) diagram analysis suggests that the addition of carboxylic acid groups with fragmentation dominated OA aging on reference days, while the increased aq-OOA contributions during SIA-enhanced periods likely reflect OA evolution due to the addition of alcohol or peroxide groups.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000837634100001
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/273611
作者单位	Chinese Academy of Sciences; Institute of Earth Environment, CAS; Laoshan Laboratory; Xi'an Jiaotong University; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Meteorological Sciences (CAMS); Chinese Academy of Sciences; Chinese Academy of Meteorological Sciences (CAMS); Macau University of Science & Technology; Johannes Gutenberg University of Mainz
推荐引用方式 GB/T 7714	Duan, Jing,Huang, Ru-Jin,Gu, Yifang,et al. Measurement report: Large contribution of biomass burning and aqueous-phase processes to the wintertime secondary organic aerosol formation in Xi'an, Northwest China[J],2022,22(15):15.
APA	Duan, Jing.,Huang, Ru-Jin.,Gu, Yifang.,Lin, Chunshui.,Zhong, Haobin.,...&O'Dowd, Colin.(2022).Measurement report: Large contribution of biomass burning and aqueous-phase processes to the wintertime secondary organic aerosol formation in Xi'an, Northwest China.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(15),15.
MLA	Duan, Jing,et al."Measurement report: Large contribution of biomass burning and aqueous-phase processes to the wintertime secondary organic aerosol formation in Xi'an, Northwest China".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.15(2022):15.