气候变化领域集成服务门户(CCPortal): Wintertime N2O5 uptake coefficients over the North China Plain

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DOI	10.1016/j.scib.2020.02.006
	Wintertime N2O5 uptake coefficients over the North China Plain
	Wang H.; Chen X.; Lu K.; Tan Z.; Ma X.; Wu Z.; Li X.; Liu Y.; Shang D.; Wu Y.; Zeng L.; Hu M.; Schmitt S.; Kiendler-Scharr A.; Wahner A.; Zhang Y.
发表日期	2020
ISSN	20959273
起始页码	765
结束页码	774
卷号	65 期号:9
英文摘要	The heterogeneous hydrolysis of dinitrogen pentoxide (N2O5) plays an important role in regulating NOx. The N2O5 uptake coefficient, γ(N2O5), was determined using an iterative box model that was constrained to observational data obtained in suburban Beijing from February to March 2016. The box model determined 2289 individual γ(N2O5) values that varied from <0.001 to 0.02 with an average value of 0.0046 ± 0.0039 (and a median value of 0.0032). We found the derived winter γ(N2O5) values in Beijing were relatively low as compared to values reported in previous field studies conducted during winter in Hong Kong (average value of 0.014) and the eastern U.S. coast (median value of 0.0143). In our study, field evidence of the suppression of γ(N2O5) values due to pNO3 − content, organics and the enhancement by aerosol liquid water content (ALWC) is in line with previous laboratory study results. Low ALWC, high pNO3 − content, and particle morphology (inorganic core with an organic shell) accounted for the low γ(N2O5) values in the North China Plain (NCP) during wintertime. The field-derived γ(N2O5) values are well reproduced by a revised parameterization method, which includes the aerosol size distribution, ALWC, nitrate and organic coating, suggesting the feasibility of comprehensive parameterization in the NCP during wintertime. © 2020 Science China Press
关键词	N2O5 uptake coefficient Nighttime chemistry Nitrate pollution Winter air pollution
英文关键词	Iterative methods; Nitrates; Organic coatings; Pollution; Aerosol size distributions; Dinitrogen pentoxide; Laboratory studies; Liquid water content; Nitrate pollution; Parameterization method; Particle morphologies; Uptake coefficients; Aerosols
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207203
作者单位	State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China; Institute of Energy and Climate Research, IEK-8: Troposphere, Forschungszentrum Jülich GmbH, Jülich, 52428, Germany; Center for Excellence in Regional Atmospheric Environment, Chinese Academy of Sciences, Xiamen, 361021, China
推荐引用方式 GB/T 7714	Wang H.,Chen X.,Lu K.,et al. Wintertime N2O5 uptake coefficients over the North China Plain[J],2020,65(9).
APA	Wang H..,Chen X..,Lu K..,Tan Z..,Ma X..,...&Zhang Y..(2020).Wintertime N2O5 uptake coefficients over the North China Plain.Science Bulletin,65(9).
MLA	Wang H.,et al."Wintertime N2O5 uptake coefficients over the North China Plain".Science Bulletin 65.9(2020).