Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-1971-2019 |
A proxy for atmospheric daytime gaseous sulfuric acid concentration in urban Beijing | |
Lu, Yiqun1; Yan, Chao2; Fu, Yueyun3; Chen, Yan4; Liu, Yiliang1; Yang, Gan1; Wang, Yuwei1; Bianchi, Federico2; Chu, Biwu2; Zhou, Ying5; Yin, Rujing3; Baalbaki, Rima2; Garmash, Olga2; Deng, Chenjuan3; Wang, Weigang4; Liu, Yongchun5; Petaja, Tuukka2,5,6; Kerminen, Veli-Matti2; Jiang, Jingkun3; Kulmala, Markku2,5; Wang, Lin1,7,8 | |
2019-02-13 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:3页码:1971-1983 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Finland |
英文摘要 | Gaseous sulfuric acid (H2SO4) is known as one of the key precursors for atmospheric new particle formation (NPF) processes, but its measurement remains challenging. Therefore, a proxy method that is able to derive gaseous sulfuric acid concentrations from parameters that can be measured relatively easily and accurately is highly desirable for the atmospheric chemistry community. Although such methods are available for clean atmospheric environments, a proxy that works well in a polluted atmosphere, such as that found in Chinese megacities, is yet to be developed. In this study, the gaseous sulfuric acid concentration was measured in February-March 2018, in urban Beijing using a nitrate based -long time-of-flight chemical ionization mass spectrometer (LToF-CIMS). A number of atmospheric parameters were recorded concurrently including the ultraviolet radiation B (UVB) intensity, the concentrations of O-3, NOx (sum of NO and NO2), SO2, and HONO, and aerosol particle number size distributions. A proxy for atmospheric daytime gaseous sulfuric acid concentration was derived via a statistical analysis method using the UVB intensity, [SO2], the condensation sink (CS), [O-3], and [HONO] (or [NOx]) as the predictor variables, where square brackets denote the concentrations of the corresponding species. In this proxy method, we considered the formation of gaseous sulfuric acid from reactions of SO2 and OH radicals during the daytime, and the loss of gaseous sulfuric acid due to its condensation onto the preexisting particles. In addition, we explored the formation of OH radicals from the conventional gas-phase photochemistry using O-3 as a proxy and from the photolysis of HONO using HONO (and subsequently NOx) as a proxy. Our results showed that the UVB intensity and [SO2] are dominant factors in the production of gaseous sulfuric acid, and that the simplest proxy could be constructed with the UVB intensity and [SO2] alone. When the OH radical production from both homogenously and heterogeneously formed precursors were considered, the relative errors were reduced by up to 20 %. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000458514200003 |
WOS关键词 | IONIZATION MASS-SPECTROMETER ; NITROUS-ACID ; PARTICLE FORMATION ; NUCLEATION ; HONO ; H2SO4 ; GAS ; NM ; CHEMISTRY ; GROWTH |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30517 |
专题 | 地球科学 |
作者单位 | 1.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Jiangwan Campus, Shanghai 200438, Peoples R China; 2.Univ Helsinki, Fac Sci, Inst Atmospher & Earth Syst Res Phys, FIN-00014 Helsinki, Finland; 3.Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China; 4.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China; 5.Beijing Univ Chem Technol, Aerosol & Haze Lab, Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China; 6.Nanjing Univ, Sch Atmospher Sci, Joint Int Res Lab Atmospher & Earth Syst Sci JirL, Nanjing 210023, Jiangsu, Peoples R China; 7.Fudan Univ, Inst Atmospher Sci, Jiangwan Campus, Shanghai 200438, Peoples R China; 8.Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China |
推荐引用方式 GB/T 7714 | Lu, Yiqun,Yan, Chao,Fu, Yueyun,et al. A proxy for atmospheric daytime gaseous sulfuric acid concentration in urban Beijing[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(3):1971-1983. |
APA | Lu, Yiqun.,Yan, Chao.,Fu, Yueyun.,Chen, Yan.,Liu, Yiliang.,...&Wang, Lin.(2019).A proxy for atmospheric daytime gaseous sulfuric acid concentration in urban Beijing.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(3),1971-1983. |
MLA | Lu, Yiqun,et al."A proxy for atmospheric daytime gaseous sulfuric acid concentration in urban Beijing".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.3(2019):1971-1983. |
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