IEECAS OpenIR  > 粉尘与环境研究室
Effect of hydrolysis of N2O5 on nitrate and ammonium formation in Beijing China: WRF-Chem model simulation
Su, Xing1,2; Tie, Xuexi1,3,4; Li, Guohui1; Cao, Junji1; Huang, Rujin1,5; Feng, Tian1,6; Long, Xin1; Xu, Ruiguang1,2
2017-02-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
Volume579Issue:2017Pages:221-229
SubtypeArticle
AbstractBeijing, the capital of China, is a mega city with a population of >20 million. In recent years, the city has experienced heavy air pollution, with particulate matter (PM) being one of its top pollutants. In the last decade, extensive efforts have been made to characterize the sources, properties, and processes of PM in Beijing. Despite progress made by previous studies, there are still some important questions to be answered and addressed. The focus of this research is to study the impact of the heterogeneous hydrolysis of N2O5 on the formation of nitrate (NOT) and ammonium (NH4+) in Beijing. The results show that during heavy pollution days (e.g., during 14-17 September 2015, with PM2.5 concentration over 100 mu g/m(3)), the concentrations of NO2 and 03 were high, with maxima of 90 and 240 mu g/m(3), respectively, providing high precursors for the formation of N2O5. In addition, the aerosol and sulfate concentrations were also high, with maxima of 201 mu g/m(3) and 23 mu g/m(3) respectively, providing reacting surface for the heterogeneous reaction. As a result, the hydrolysis of N2O5 led to 21.0% enhancement of nitrate (NO3-) and 7.5% enhancement of ammonium (NH4+). It is worth to note that this important effect only occurred in high pollution days (PM2.5-concentration over 100 mu g/m(3)). During low-pollution periods (PM2.5 concentration <100 mu g/m(3)), the effect of hydrolysis of N2O5 on the formation of nitrate and ammonium was insignificant (variation rate <5%). This study suggests that during heavy pollution periods, the hydrolysis of N2O5 enhances the level of aerosol pollution in Beijing, and needs to be further studied in order to perform-efficient air pollution control-and mitigation strategies. (C) 2016 Elsevier B.V. All rights reserved.
KeywordHydrolysis Of N2o5 Nitrate And Ammonium Beijing Wrf-chem
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.scitotenv.2016.11.125
WOS KeywordMEXICO-CITY ; MCMA-2006/MILAGRO CAMPAIGN ; AEROSOL POLLUTION ; AIR-POLLUTION ; HEAVY HAZE ; IMPACTS ; VISIBILITY ; DEPOSITION ; OZONE ; PM2.5
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000391897800022
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5556
Collection粉尘与环境研究室
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess Quaternary Geol, Key Lab Aerosol Sci & Technol, Xian 710061, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Urban Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
4.Natl Ctr Atmospher Res, Boulder, CO 80303 USA
5.Paul Schemer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland
6.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China
Recommended Citation
GB/T 7714
Su, Xing,Tie, Xuexi,Li, Guohui,et al. Effect of hydrolysis of N2O5 on nitrate and ammonium formation in Beijing China: WRF-Chem model simulation[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,579(2017):221-229.
APA Su, Xing.,Tie, Xuexi.,Li, Guohui.,Cao, Junji.,Huang, Rujin.,...&Xu, Ruiguang.(2017).Effect of hydrolysis of N2O5 on nitrate and ammonium formation in Beijing China: WRF-Chem model simulation.SCIENCE OF THE TOTAL ENVIRONMENT,579(2017),221-229.
MLA Su, Xing,et al."Effect of hydrolysis of N2O5 on nitrate and ammonium formation in Beijing China: WRF-Chem model simulation".SCIENCE OF THE TOTAL ENVIRONMENT 579.2017(2017):221-229.
Files in This Item:
File Name/Size DocType Version Access License
Effect of hydrolysis(3672KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Su, Xing]'s Articles
[Tie, Xuexi]'s Articles
[Li, Guohui]'s Articles
Baidu academic
Similar articles in Baidu academic
[Su, Xing]'s Articles
[Tie, Xuexi]'s Articles
[Li, Guohui]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Su, Xing]'s Articles
[Tie, Xuexi]'s Articles
[Li, Guohui]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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