Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD032200 |
Increase of High Molecular Weight Organosulfate With Intensifying Urban Air Pollution in the Megacity Beijing | |
Xie, Qiaorong1,2,3; Li, Ying1,4; Yue, Siyao1,3; Su, Sihui2; Cao, Dong5; Xu, Yisheng6; Chen, Jing7; Tong, Haijie8; Su, Hang8; Cheng, Yafang8; Zhao, Wanyu1,3; Hu, Wei2; Wang, Zhe1; Yang, Ting1; Pan, Xiaole1; Sun, Yele1; Wang, Zifa1; Liu, Cong-Qiang2; Kawamura, Kimitaka9; Jiang, Guibin5; Shiraiwa, Manabu4; Fu, Pingqing1,2 | |
2020-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Germany; Japan |
英文摘要 | Organosulfates (OSs), a key component of secondary organic aerosols (SOA), account for up to one third of organic matter in the atmosphere. However, high molecular weight (HMW, 500-800 Da) OSs in ambient aerosols are poorly characterized at a molecular level, due to experimental difficulties. With Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICRMS), we are able to identify more than 8,000 OSs in wintertime aerosols in Beijing. We found that both the number and signal magnitudes of HMW OSs with low H/C and O/C ratios and degrees of unsaturation were greatly enhanced during hazy days, indicating that most HMW OSs were freshly formed during stagnant air pollution episodes. They are most likely to be the oxidation products of semivolatility to low-volatility precursors (e.g., polycyclic aromatic hydrocarbons and fatty acids) and have showed a strong influence of anthropogenic emissions. The molecular corridor analysis suggests that the high abundance of HMW aromatic-like and aliphatic OSs considerably decreases the volatility of organic aerosols in the urban atmosphere. |
英文关键词 | Organic aerosol Organosulfates FT-ICR MS Secondary organic aerosol Volatile organic compounds |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000537788100008 |
WOS关键词 | SECONDARY ORGANIC AEROSOL ; RESONANCE MASS-SPECTROMETRY ; UNSATURATED FATTY-ACIDS ; PARTICULATE ORGANOSULFATES ; CHEMICAL-CHARACTERIZATION ; HETEROGENEOUS REACTION ; ATMOSPHERIC AEROSOLS ; MATTER ; CLIMATE ; IDENTIFICATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/280237 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing, Peoples R China; 2.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin, Peoples R China; 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China; 4.Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA; 5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing, Peoples R China; 6.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing, Peoples R China; 7.Tianjin Univ, Sch Environm Sci & Engn, Tianjin, Peoples R China; 8.Max Planck Inst Chem, Multiphase Chem Dept, Mainz, Germany; 9.Chubu Univ, Chubu Inst Adv Studies, Kasugai, Aichi, Japan |
推荐引用方式 GB/T 7714 | Xie, Qiaorong,Li, Ying,Yue, Siyao,et al. Increase of High Molecular Weight Organosulfate With Intensifying Urban Air Pollution in the Megacity Beijing[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(10). |
APA | Xie, Qiaorong.,Li, Ying.,Yue, Siyao.,Su, Sihui.,Cao, Dong.,...&Fu, Pingqing.(2020).Increase of High Molecular Weight Organosulfate With Intensifying Urban Air Pollution in the Megacity Beijing.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(10). |
MLA | Xie, Qiaorong,et al."Increase of High Molecular Weight Organosulfate With Intensifying Urban Air Pollution in the Megacity Beijing".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.10(2020). |
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