气候变化领域集成服务门户(CCPortal): Rapid mass growth and enhanced light extinction of atmospheric aerosols during the heating season haze episodes in Beijing revealed by aerosol-chemistry-radiation-boundary layer interaction

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DOI	10.5194/acp-21-12173-2021
	Rapid mass growth and enhanced light extinction of atmospheric aerosols during the heating season haze episodes in Beijing revealed by aerosol-chemistry-radiation-boundary layer interaction
	Lin Z.; Wang Y.; Zheng F.; Zhou Y.; Guo Y.; Feng Z.; Li C.; Zhang Y.; Hakala S.; Chan T.; Yan C.; Daellenbach K.R.; Chu B.; Dada L.; Kangasluoma J.; Yao L.; Fan X.; Du W.; Cai J.; Cai R.; Kokkonen T.V.; Zhou P.; Wang L.; Petäjä T.; Bianchi F.; Kerminen V.-M.; Liu Y.; Kulmala M.
发表日期	2021
ISSN	1680-7316
起始页码	12173
结束页码	12187
卷号	21 期号:16
英文摘要	Despite the numerous studies investigating haze formation mechanism in China, it is still puzzling that intensive haze episodes could form within hours directly following relatively clean periods. Haze has been suggested to be initiated by the variation of meteorological parameters and then to be substantially enhanced by aerosol-radiation-boundary layer feedback. However, knowledge on the detailed chemical processes and the driving factors for extensive aerosol mass accumulation during the feedback is still scarce. Here, the dependency of the aerosol number size distribution, mass concentration and chemical composition on the daytime mixing layer height (MLH) in urban Beijing is investigated. The size distribution and chemical composition-resolved dry aerosol light extinction is also explored. The results indicate that the aerosol mass concentration and fraction of nitrate increased dramatically when the MLH decreased from high to low conditions, corresponding to relatively clean and polluted conditions, respectively. Particles having their dry diameters in the size of ∼400-700 nm, and especially particle-phase ammonium nitrate and liquid water, contributed greatly to visibility degradation during the winter haze periods. The dependency of aerosol composition on the MLH revealed that ammonium nitrate and aerosol water content increased the most during low MLH conditions, which may have further triggered enhanced formation of sulfate and organic aerosol via heterogeneous reactions. As a result, more sulfate, nitrate and water-soluble organics were formed, leading to an enhanced water uptake ability and increased light extinction by the aerosols. The results of this study contribute towards a more detailed understanding of the aerosol-chemistry-radiation-boundary layer feedback that is likely to be responsible for explosive aerosol mass growth events in urban Beijing. © 2021 Zhuohui Lin et al.
语种	英语
scopus关键词	aerosol; boundary layer; chemical composition; haze; heating; nitrate; size distribution; urban area; water content; 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/246655
作者单位	Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China; Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland; Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing, China; Joint International Research Laboratory of Atmospheric and Earth SysTem Sciences (JirLATEST), Nanjing University, Nanjing, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
推荐引用方式 GB/T 7714	Lin Z.,Wang Y.,Zheng F.,et al. Rapid mass growth and enhanced light extinction of atmospheric aerosols during the heating season haze episodes in Beijing revealed by aerosol-chemistry-radiation-boundary layer interaction[J],2021,21(16).
APA	Lin Z..,Wang Y..,Zheng F..,Zhou Y..,Guo Y..,...&Kulmala M..(2021).Rapid mass growth and enhanced light extinction of atmospheric aerosols during the heating season haze episodes in Beijing revealed by aerosol-chemistry-radiation-boundary layer interaction.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(16).
MLA	Lin Z.,et al."Rapid mass growth and enhanced light extinction of atmospheric aerosols during the heating season haze episodes in Beijing revealed by aerosol-chemistry-radiation-boundary layer interaction".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.16(2021).