DOI: 10.1016/j.scib.2020.02.006
论文题名: Wintertime N2O5 uptake coefficients over the North China Plain
作者: 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.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期: 9 起始页码: 765
结束页码: 774
语种: 英语
中文关键词: 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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170059
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Wang H.,Chen X.,Lu K.,et al. Wintertime N2O5 uptake coefficients over the North China Plain[J]. Science Bulletin,2020-01-01,65(9)