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DOI	10.5194/acp-16-14937-2016
	Wintertime organic and inorganic aerosols in Lanzhou, China: sources, processes, and comparison with the results during summer
	Xu, Jianzhong; Shi, Jinsen; Zhang, Qi; Ge, Xinlei; Canonaco, Francesco; Prevot, Andre S. H.; Vonwiller, Matthias; Szidat, Sonke; Ge, Jinming; Ma, Jianmin; An, Yanqing; Kang, Shichang; Qin, Dahe
发表日期	2016
ISSN	1680-7316
EISSN	1680-7324
卷号	16 期号:23
英文摘要	One of the OOAs was less oxidized (LO-OOA), and the other one more oxidized (MO-OOA). LO-OOA was the most abundant OA component (22.3% of OA mass), followed by CCOA (22.0 %), COA (20.2 %), MO-OOA (14.9 %), BBOA (10.8 %), and HOA (9.8 %). The mass fraction of primary OA (= HOA + BBOA + COA + CCOA) increased during high PM pollution periods, indicating that local primary emissions were a main reason for the formation of air pollution events in Lanzhou during winter. Radiocarbon (C-14) measurement was conducted on four PM2.5 filter samples from this study, which allowed for a quantitative source apportionment of organic carbon (OC). The non-fossil sources on average accounted for 55 +/- 3% of OC, which could be mainly from biomass burning and cooking activities, suggesting the importance of non-fossil sources for the PM pollution in Lanzhou. Together with the PMF results, we also found that a large fraction (66 +/- 10 %) of the secondary OC was from non-fossil OC.
学科领域	Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences ; Meteorology & Atmospheric Sciences
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111825
作者单位	Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Xu, Jianzhong,Shi, Jinsen,Zhang, Qi,et al. Wintertime organic and inorganic aerosols in Lanzhou, China: sources, processes, and comparison with the results during summer[J]. 中国科学院西北生态环境资源研究院,2016,16(23).
APA	Xu, Jianzhong.,Shi, Jinsen.,Zhang, Qi.,Ge, Xinlei.,Canonaco, Francesco.,...&Qin, Dahe.(2016).Wintertime organic and inorganic aerosols in Lanzhou, China: sources, processes, and comparison with the results during summer.ATMOSPHERIC CHEMISTRY AND PHYSICS,16(23).
MLA	Xu, Jianzhong,et al."Wintertime organic and inorganic aerosols in Lanzhou, China: sources, processes, and comparison with the results during summer".ATMOSPHERIC CHEMISTRY AND PHYSICS 16.23(2016).