Production of N2O5 and ClNO2 in summer in urban Beijing, China
Production of N2O5 and ClNO2 in summer in urban Beijing, China
复制标题
中国北京城区夏季 N2O5 和 ClNO2 的产生
DOI：
10.5194/acp-18-11581-2018
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发表时间：
2018-08
影响因子：
6.3
通讯作者：
Wo
中科院分区：
文献类型：
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作者：
Zhou Wei;Zhao Jian;Ouyang Bin;Mehra Archit;Xu Weiqi;Wang Yuying;Bannan Thomas J.;Worrall Stephen D.;Priestley Michael;Bacak Asan;Chen Qi;Xie Conghui;Wang Qingqing;Wang Junfeng;Du Wei;Zhang Yingjie;Ge Xinlei;Ye Penglin;Lee James D.;Fu Pingqing;Wang Zifa;Wo
Abstract. The heterogeneous hydrolysis of dinitrogen pentoxide
(N2O5) has a significant impact on both nocturnal particulate
nitrate formation and photochemistry on the following day through the photolysis
of nitryl chloride (ClNO2), yet these processes in highly polluted
urban areas remain poorly understood. Here we present measurements of
gas-phase N2O5 and ClNO2 by high-resolution time-of-flight
chemical ionization mass spectrometer (ToF-CIMS) during summer in urban
Beijing, China as part of the Air Pollution and Human Health (APHH)
campaign. N2O5 and ClNO2 show large day-to-day variations
with average (±1σ) mixing ratios of 79.2±157.1 and
174.3±262.0 pptv, respectively. High reactivity of N2O5,
with τ (N2O5)−1 ranging from 0.20 × 10−2 to
1.46 × 10−2 s−1, suggests active nocturnal
chemistry and a large nocturnal nitrate formation potential via
N2O5 heterogeneous uptake. The lifetime of N2O5, τ (N2O5),
decreases rapidly with the increase in aerosol surface
area, yet it varies differently as a function of relative humidity with the
highest value peaking at ∼ 40 %. The N2O5 uptake
coefficients estimated from the product formation rates of ClNO2 and
particulate nitrate are in the range of 0.017–0.19, corresponding to direct
N2O5 loss rates of 0.00044–0.0034 s−1. Further analysis
indicates that the fast N2O5 loss in the nocturnal boundary layer
in urban Beijing is mainly attributed to its indirect
loss via NO3, for example through the reactions with volatile organic
compounds and NO, while the contribution of the heterogeneous uptake of
N2O5 is comparably small (7–33 %). High ClNO2 yields
ranging from 0.10 to 0.35 were also observed, which might have important
implications for air quality by affecting nitrate and ozone
formation.
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DOI：
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发表时间：
2010
期刊：
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影响因子：
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作者：
Y. Yuan
通讯作者：
Y. Yuan
北京城区观测到的高 N2O5 浓度：大硝酸盐形成途径的影响
影响因子：
10.9
作者：
Wang Haichao;Lu Keding;Chen Xiaorui;Zhu Qindan;Chen Qi;Guo Song;Jiang Meiqing;Li Xin;Shang Dongjie;Tan Zhaofeng;Wu Yusheng;Wu Zhijun;Zou Qi;Zheng Yan;Zeng Limin;Zhu Tong;Hu Min;Zhang Yuanhang
通讯作者：
Zhang Yuanhang
在北京使用 FigAERO ToF-CIMS 对有机硫酸盐、有机磺酸盐和硝氧基有机硫酸盐进行在线气相和颗粒相测量
影响因子：
6.3
作者：
Le Breton Michael;Wang Yujue;Hallquist Asa M.;Pathak Ravi Kant;Zheng Jing;Yang Yudong;Shang Dongjie;Glasius Marianne;Bannan Thomas J.;Liu Qianyun;Chan Chak K.;Percival Carl J.;Zhu Wenfei;Lou Shengrong;Topping David;Wang Yuchen;Yu Jianzhen;Lu Keding;Guo So
通讯作者：
Guo So
影响因子：
64.8
作者：
Thornton, Joel A.;Kercher, James P.;Brown, Steven S.
通讯作者：
Brown, Steven S.
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