Heterogeneous N<sub>2</sub>O<sub>5</sub> reactions on atmospheric aerosols at four Chinese sites: improving model representation of uptake parameters
-
Published:2020-04-15
Issue:7
Volume:20
Page:4367-4378
-
ISSN:1680-7324
-
Container-title:Atmospheric Chemistry and Physics
-
language:en
-
Short-container-title:Atmos. Chem. Phys.
Author:
Yu Chuan, Wang ZheORCID, Xia MenORCID, Fu XiaoORCID, Wang WeihaoORCID, Tham Yee JunORCID, Chen Tianshu, Zheng Penggang, Li Hongyong, Shan YeORCID, Wang XinfengORCID, Xue Likun, Zhou Yan, Yue Dingli, Ou Yubo, Gao Jian, Lu KedingORCID, Brown Steven S., Zhang Yuanhang, Wang TaoORCID
Abstract
Abstract. Heterogeneous reactivity of N2O5 on aerosols is
a critical parameter in assessing NOx fate, nitrate production, and
particulate chloride activation. Accurate measurement of its uptake
coefficient (γN2O5) and representation in air quality models
are challenging, especially in the polluted environment. With an in situ
aerosol flow-tube system, the γN2O5 was directly measured on
ambient aerosols at two rural sites in northern and southern China. The
results were analyzed together with the γN2O5 derived from
previous field studies in China to obtain a holistic picture of
N2O5 uptake and the influencing factors under various climatic and
chemical conditions. The field-derived or measured γN2O5 was
generally promoted by the aerosol water content and suppressed by particle
nitrate. Significant discrepancies were found between the measured γN2O5 and that estimated from laboratory-determined parameterizations.
An observation-based empirical parameterization was derived in the present
work, which better reproduced the mean value and variability of the observed
γN2O5. Incorporating this new parameterization into a regional
air quality model (WRF-CMAQ) has improved the simulation of N2O5,
nitrogen oxides, and secondary nitrate in the polluted regions of China.
Funder
National Natural Science Foundation of China
Publisher
Copernicus GmbH
Subject
Atmospheric Science
Reference63 articles.
1. Anttila, T., Kiendler-Scharr, A., Tillmann, R., and Mentel, T. F.: On the
Reactive Uptake of Gaseous Compounds by Organic-Coated Aqueous Aerosols:
Theoretical Analysis and Application to the Heterogeneous Hydrolysis of
N2O5, J. Phys. Chem. A, 110, 10435–10443, https://doi.org/10.1021/jp062403c, 2006. 2. Atkinson, R. and Arey, J.: Gas-phase tropospheric chemistry of biogenic
volatile organic compounds: a review, Atmos. Environ., 37, 197–219, https://doi.org/10.1016/s1352-2310(03)00391-1, 2003. 3. Behnke, W., George, C., Scheer, V., and Zetzsch, C.: Production and decay of
ClNO2 from the reaction of gaseous N2O5 with NaCl solution:
Bulk and aerosol experiments, J. Geophys. Res.-Atmos.,
102, 3795–3804, https://doi.org/10.1029/96jd03057, 1997. 4. Bertram, T. H. and Thornton, J. A.: Toward a general parameterization of N2O5 reactivity on aqueous particles: the competing effects of particle liquid water, nitrate and chloride, Atmos. Chem. Phys., 9, 8351–8363, https://doi.org/10.5194/acp-9-8351-2009, 2009. 5. Bertram, T. H., Thornton, J. A., and Riedel, T. P.: An experimental technique for the direct measurement of N2O5 reactivity on ambient particles, Atmos. Meas. Tech., 2, 231–242, https://doi.org/10.5194/amt-2-231-2009, 2009a.
Cited by
40 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|