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DOI	10.5194/acp-20-14063-2020
	Impact of in-cloud aqueous processes on the chemical compositions and morphology of individual atmospheric aerosols
	Fu Y.; Lin Q.; Zhang G.; Yang Y.; Yang Y.; Lian X.; Peng L.; Jiang F.; Bi X.; Li L.; Wang Y.; Chen D.; Ou J.; Wang X.; Zhu J.; Sheng G.
发表日期	2020
ISSN	16807316
起始页码	14063
结束页码	14075
卷号	20 期号:22
英文摘要	The composition, morphology, and mixing structure of individual cloud residues (RES) and interstitial particles (INT) at a mountaintop site were investigated. Eight types of particles were identified, including sulfate-rich (S-rich), S-organic matter (OM), aged soot, aged mineral dust, aged fly ash, aged metal, refractory, and aged refractory mixture. A shift of dominant particle types from S-rich (29 %) and aged soot (27 %) in the INT to aged refractory mixture (23 %) and S-OM (22 %) in the RES is observed. In particular, particles with organic shells are enriched in the RES (27 %) relative to the INT (12 %). Our results highlight that the formation of more oxidized organic matter in the cloud contributes to the existence of organic shells after cloud processing. The fractal dimension (Df), a morphologic parameter to represent the branching degree of particles, for soot particles in the RES (1.82 ± 0.12) is lower than that in the INT (2.11 ± 0.09), which indicates that in-cloud processes may result in less compact soot. This research emphasizes the role of in-cloud processes in the chemistry and microphysical properties of individual particles. Given that organic coatings may determine the particle hygroscopicity, activation ability, and heterogeneous chemical reactivity, the increase of OM-shelled particles upon in-cloud processes should have considerable implications. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
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/152802
作者单位	State Key Laboratory of Organic Geochemistry and Guangdong, Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou, 510640, China; Cas Key Lab. of Mineral. and Metallogeny and Guangdong Prov. Key Lab. of Mineral Phys. and Materials, Guangzhou Institute of Geochemistry, Cas, Guangzhou, 510640, China; Institute of Mass Spectrometer and Atmosphere Environment, Jinan University, Guangzhou, 510632, China; Department of Atmospheric Science, School of Earth Science, Zhejiang University, Hangzhou, 310027, China; State Environmental Protection Key Laboratory of Regional Air Quality Monitoring, Guangdong Environmental Monitoring Center, Guangzhou, 510308, China; Shaoguan Environmental Monitoring Center, Shaoguan, 512026, China
推荐引用方式 GB/T 7714	Fu Y.,Lin Q.,Zhang G.,et al. Impact of in-cloud aqueous processes on the chemical compositions and morphology of individual atmospheric aerosols[J],2020,20(22).
APA	Fu Y..,Lin Q..,Zhang G..,Yang Y..,Yang Y..,...&Sheng G..(2020).Impact of in-cloud aqueous processes on the chemical compositions and morphology of individual atmospheric aerosols.Atmospheric Chemistry and Physics,20(22).
MLA	Fu Y.,et al."Impact of in-cloud aqueous processes on the chemical compositions and morphology of individual atmospheric aerosols".Atmospheric Chemistry and Physics 20.22(2020).