Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-901-2020 |
Significant contribution of organics to aerosol liquid water content in winter in Beijing, China | |
Jin, Xiaoai1; Wang, Yuying2; Li, Zhanqing3; Zhang, Fang1; Xu, Weiqi4,5; Sun, Yele4,5; Fan, Xinxin1; Chen, Guangyu6; Wu, Hao1; Ren, Jingye1; Wang, Qiuyan2; Cribb, Maureen3 | |
2020-01-23 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:2页码:901-914 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The aerosol liquid water (ALW) content (ALWC), an important component of atmospheric particles, has a significant effect on atmospheric optical properties, visibility and multiphase chemical reactions. In this study, ALWC is determined from aerosol hygroscopic growth factor (GF) and particle number size distribution (PNSD) measurements and is also simulated by ISORROPIA II, a thermodynamic equilibrium model, with measured aerosol chemical composition data taken at an urban site in Beijing from 8 November to 15 December 2017. Rich measurements made during the experiment concerning virtually all aerosol properties allow us not only to derive the ALWC but also to study the contributions by various species for which little has been done in this region. The simulated ALWC including the contribution of organics and the calculated ALWC are highly correlated (coefficient of determination R-2 = 0.92). The ALWC contributed by organics (ALWC(Org)) accounts for 30 % +/- 22 % of the total ALWC during the sampling period. These results suggest a significant contribution of organics to ALWC, which is rather different from previous studies that showed negligible contributions by organics. Our results also show that ALWC correlates well with the mass concentrations of sulfate, nitrate, and secondary organic aerosols (SOAs) (R-2 = 0.66, 0.56 and 0.60, respectively). We further noted that accumulation mode particles play a key role in determining ALWC, dominating among all the aerosol modes. ALWC is an exponential function of ambient relative humidity (RH), whose strong diurnal variation influence the diurnal variation of ALWC. However, there is a 3 h lag between the extremes of ALWC and RH values, due to the diurnal variations in PNSD and aerosol chemical composition. Finally, a case study reveals that ALWC(Org) plays an important role in the formation of secondary aerosols through multiphase reactions at the initial stage of a heavy-haze episode. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000509386500006 |
WOS关键词 | THERMODYNAMIC-EQUILIBRIUM MODEL ; NUMBER SIZE DISTRIBUTION ; HYGROSCOPIC GROWTH ; CCN ACTIVITY ; HETEROGENEOUS CHEMISTRY ; RELATIVE-HUMIDITY ; AQUEOUS PARTICLES ; AMBIENT AEROSOLS ; NITRATE ; N2O5 |
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/278589 |
专题 | 地球科学 |
作者单位 | 1.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, State Key Lab Remote Sensing Sci, Beijing 100875, Peoples R China; 2.Nanjing Univ Informat Sci & Technol, Key Lab Aerosol Cloud Precipitat, China Meteorol Adm, Sch Atmospher Phys, Nanjing 210044, Peoples R China; 3.Univ Maryland, Dept Atmospher & Ocean Sci, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA; 4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 5.Univ Chinese Acad Sci, Coll Earth Sci & Planetary Sci, Beijing 100049, Peoples R China; 6.Zhejiang Windey Co Ltd, Hangzhou 310012, Peoples R China |
推荐引用方式 GB/T 7714 | Jin, Xiaoai,Wang, Yuying,Li, Zhanqing,et al. Significant contribution of organics to aerosol liquid water content in winter in Beijing, China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(2):901-914. |
APA | Jin, Xiaoai.,Wang, Yuying.,Li, Zhanqing.,Zhang, Fang.,Xu, Weiqi.,...&Cribb, Maureen.(2020).Significant contribution of organics to aerosol liquid water content in winter in Beijing, China.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(2),901-914. |
MLA | Jin, Xiaoai,et al."Significant contribution of organics to aerosol liquid water content in winter in Beijing, China".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.2(2020):901-914. |
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