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Environ Sci Technol

Title:		Molecular Composition of Oxygenated Organic Molecules and Their Contributions to Organic Aerosol in Beijing
Author(s):		Wang Y; Clusius P; Yan C; Dallenbach K; Yin R; Wang M; He XC; Chu B; Lu Y; Dada L; Kangasluoma J; Rantala P; Deng C; Lin Z; Wang W; Yao L; Fan X; Du W; Cai J; Heikkinen L; Tham YJ; Zha Q; Ling Z; Junninen H; Petaja T; Ge M; Wang Y; He H; Worsnop DR; Kerminen VM; Bianchi F; Wang L; Jiang J; Liu Y; Boy M; Ehn M; Donahue NM; Kulmala M;
Address:		"Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100089, China. Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki 00560, Finland. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. School of Environment, Tsinghua University, Beijing 100084, China. Center for Atmospheric Particle Studies, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States. Department of Environmental Science & Engineering, Fudan University, Shanghai 200438, China. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100029, China. Institute of Physics, University of Tartu, Tartu 50090, Estonia. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China. Aerodyne Research Inc., Billerica, Massachusetts 01821, United States"
Journal Title:		Environ Sci Technol
Year:		2022
Volume:		20211122
Issue:		2
Page Number:		770 - 778
DOI:		10.1021/acs.est.1c05191
ISSN/ISBN:		1520-5851 (Electronic) 0013-936X (Linking)
Abstract:		"The understanding at a molecular level of ambient secondary organic aerosol (SOA) formation is hampered by poorly constrained formation mechanisms and insufficient analytical methods. Especially in developing countries, SOA related haze is a great concern due to its significant effects on climate and human health. We present simultaneous measurements of gas-phase volatile organic compounds (VOCs), oxygenated organic molecules (OOMs), and particle-phase SOA in Beijing. We show that condensation of the measured OOMs explains 26-39% of the organic aerosol mass growth, with the contribution of OOMs to SOA enhanced during severe haze episodes. Our novel results provide a quantitative molecular connection from anthropogenic emissions to condensable organic oxidation product vapors, their concentration in particle-phase SOA, and ultimately to haze formation"
Keywords:		Aerosols/analysis *Air Pollutants/analysis Beijing Humans *Volatile Organic Compounds air pollution haze organic aerosol oxygenated organic molecules volatility;
Notes:		"MedlineWang, Yonghong Clusius, Petri Yan, Chao Dallenbach, Kaspar Yin, Rujing Wang, Mingyi He, Xu-Cheng Chu, Biwu Lu, Yiqun Dada, Lubna Kangasluoma, Juha Rantala, Pekka Deng, Chenjuan Lin, Zhuohui Wang, Weigang Yao, Lei Fan, Xiaolong Du, Wei Cai, Jing Heikkinen, Liine Tham, Yee Jun Zha, Qiaozhi Ling, Zhenhao Junninen, Heikki Petaja, Tuukka Ge, Maofa Wang, Yuesi He, Hong Worsnop, Douglas R Kerminen, Veli-Matti Bianchi, Federico Wang, Lin Jiang, Jingkun Liu, Yongchun Boy, Michael Ehn, Mikael Donahue, Neil M Kulmala, Markku eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2021/11/23 Environ Sci Technol. 2022 Jan 18; 56(2):770-778. doi: 10.1021/acs.est.1c05191. Epub 2021 Nov 22"