气候变化领域集成服务门户(CCPortal): Chemistry of new particle formation and growth events during wintertime in suburban area of Beijing: Insights from highly polluted atmosphere

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DOI	10.1016/j.atmosres.2021.105553
	Chemistry of new particle formation and growth events during wintertime in suburban area of Beijing: Insights from highly polluted atmosphere
	Yang S.; Liu Z.; Clusius P.S.; Liu Y.; Zou J.; Yang Y.; Zhao S.; Zhang G.; Xu Z.; Ma Z.; Yang Y.; Sun J.; Pan Y.; Ji D.; Hu B.; Yan C.; Boy M.; Kulmala M.; Wang Y.
发表日期	2021
ISSN	0169-8095
卷号	255
英文摘要	The high frequency of new particle formation (NPF) events observed under polluted atmospheric conditions is still poorly understood. To improve our understanding of NPF and its effects, the particle number size distribution (3–1000 nm) and submicron particle chemical composition were measured from 4 November 2017 to 17 January 2018 in suburban Beijing. During this intense campaign, 22 NPF events were identified with a frequency of 29%, including 11 cases that occurred under “clean” conditions (C-NPF) and 11 cases that occurred under “polluted” conditions (P-NPF). The observed formation rate (J3) and condensation sink were 4.6–148.9 cm−3·s−1 and 0.01–0.07 s−1, and the majority of NPF events occurred when the condensation sink (CS) values below 0.03 s−1, indicating that condensation vapor likely constitutes the critical limiting factor for NPF events. The correlations between log J3 and [H2SO4] that close to previous CLOUD experimental results in the majority of NPF events (68%) suggest the high nucleation rates (up to 100 cm−3·s−1) would be attributed by the amines that enhancing sulfuric acid nucleation, while the reminding cases (32%) possibly attributed to the H2SO4-NH3 clustering mechanism, which is supported by the theoretical expectations for H2SO4 nucleation with NH3 simulated by the MALTE_BOX model. The observed growth rate varied from 4.9 to 37.0 nm·h−1, with the dominant contribution (>60%) from sulfuric acid during the early phases of growth (~4 nm), which was also sufficient to explain the observed QGR for <10 nm particles in high QSO4 cases. While for the low sulfate production (QSO4 < 0.1 μg·m−3·h−1) cases, QSO4 systematically underestimated QGR, and the QSO4/QGR ratio drops from 0.5 to 0.3 as particles grow from a 5–10 nm size range to a 15–20 nm size range, suggesting the condensation of organic compounds strengthened as the particles grew larger and dominated the growth from 4 nm up to climatically relevant sizes (>50 nm) © 2021 Elsevier B.V.
英文关键词	Formation mechanism; Growth chemistry; New particle events; Polluted atmosphere
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236793
作者单位	Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing, 10029, China; State key laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, P.O. Box 64, Helsinki, 00014, Finland; Institute of Urban Meteorology, China Meteorological Administration, Beijing, China; Weather Modification Office of Hebei Province, Shijiazhuang, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Science, Xiamen, 361021, China; University of Chinese Academy of Science, Beijing, 100049, China
推荐引用方式 GB/T 7714	Yang S.,Liu Z.,Clusius P.S.,et al. Chemistry of new particle formation and growth events during wintertime in suburban area of Beijing: Insights from highly polluted atmosphere[J],2021,255.
APA	Yang S..,Liu Z..,Clusius P.S..,Liu Y..,Zou J..,...&Wang Y..(2021).Chemistry of new particle formation and growth events during wintertime in suburban area of Beijing: Insights from highly polluted atmosphere.Atmospheric Research,255.
MLA	Yang S.,et al."Chemistry of new particle formation and growth events during wintertime in suburban area of Beijing: Insights from highly polluted atmosphere".Atmospheric Research 255(2021).