Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/81523
PIRA download icon_1.1View/Download Full Text
Title: Heterogeneous uptake of N2O5 in sand dust and urban aerosols observed during the dry season in Beijing
Authors: Xia, M 
Wang, W 
Wang, Z 
Gao, J
Li, H
Liang, Y 
Yu, C 
Zhang, Y
Wang, P 
Zhang, Y
Bi, F
Cheng, X
Wang, T 
Issue Date: 2019
Source: Atmosphere, 2019, v. 10, no. 4, 204
Abstract: The uptake of dinitrogen pentoxide (N2O5) on aerosols affects the nocturnal removal of NOx and particulate nitrate formation in the atmosphere. This study investigates N2O5 uptake processes using field observations from an urban site in Beijing during April-May 2017, a period characterized by dry weather conditions. For the first time, a very large N2O5 uptake rate (k(N2O5) up to ~0.01 s-1) was observed during a sand storm event, and the uptake coefficient ( (N2O5)) was estimated to be 0.044. The γ(N2O5) in urban air masses was also determined and exhibited moderate correlation (r = 0.68) with aerosol volume to surface ratio (Va/Sa), but little relation to aerosol water, nitrate, and chloride, a finding that contrasts with previous results. Several commonly used parameterizations of γ(N2O5) underestimated the field-derived γ(N2O5). A new parameterization is suggested for dry conditions, which considers the effect of Va/Sa, temperature, and relative humidity.
Keywords: Aerosol compositions
N2O5 uptake
Particle size
Sand dust
Publisher: Molecular Diversity Preservation International (MDPI)
Journal: Atmosphere 
ISSN: 2073-4433
DOI: 10.3390/ATMOS10040204
Rights: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The following publication Xia M, Wang W, Wang Z, Gao J, Li H, Liang Y, Yu C, Zhang Y, Wang P, Zhang Y, Bi F, Cheng X, Wang T. Heterogeneous Uptake of N2O5 in Sand Dust and Urban Aerosols Observed during the Dry Season in Beijing. Atmosphere. 2019; 10(4):204, is available at https://doi.org/10.3390/atmos10040204
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
Xia_Heterogeneous_uptake_N2O5.pdf1.73 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Version of Record
Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page views

138
Last Week
0
Last month
Citations as of Mar 24, 2024

Downloads

91
Citations as of Mar 24, 2024

SCOPUSTM   
Citations

17
Citations as of Mar 28, 2024

WEB OF SCIENCETM
Citations

10
Citations as of Mar 28, 2024

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.