A New Structural Classification Scheme for Dissolved Organic Sulfur in Urban Snow from North China
文献类型：期刊论文
| 作者 | Su, Sihui; Xie, Qiaorong; Smith, Alan J.; Lang, Yunchao; Hu, Wei; Cao, Dong ; Yue, Siyao; Chen, Shuang; Zhu, Jialei; Xu, Yisheng
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
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| 出版日期 | 2022-05-10 |
| 卷号 | 9期号:5页码:366-374 |
| 关键词 | MOLECULAR FORMULA ASSIGNMENT UNSATURATED FATTY-ACIDS ORGANOSULFUR COMPOUNDS ATMOSPHERIC AEROSOLS MASS-SPECTROMETRY PARTICULATE ORGANOSULFATES HETEROGENEOUS REACTION AROMATIC-HYDROCARBONS CHEMICAL-COMPOSITION ANIONIC SURFACTANTS |
| ISSN号 | 2328-8930 |
| 英文摘要 | The chemical composition of dissolved organic sulfur in snow is important in understanding the sources and scavenging processes of atmospheric organic matter. Snow samples collected simultaneously from four megacities in North China were analyzed using ultra-high-resolution Fourier transform ion cyclotron resonance mass spectrometry. The modified oxygen and redefined aromaticity index help in the interpretation of the possible structural information and evaluation of the aromaticity of sulfur-containing molecules. By extending these parameters, we provide a new structural classification for organic sulfur species in the atmosphere. With the new classification, the oxidized (O/S > 3) and less oxidized (O/S <= 3) sulfur-containing molecules can be easily distinguished. Typical known secondary organosulfates and sulfonates and anthropogenically derived anionic surfactants verified the validity of this new classification. The new classification was applied to the molecular characterization of dissolved organic sulfur in snow samples. More than one hundred (138-150) of the molecules with medium O/S ratios of 5-11 and a low to medium mass range of <500 Da are related with typical known secondary organosulfates and anthropogenically derived anionic surfactants. Our study provides new insights into the molecular compositions of organic sulfur species in ambient air, although their atmospheric behaviors between the snow-aerosol interfaces warrant further examination. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47453]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 通讯作者 | Fu, Pingqing |
| 作者单位 | 1.Max Planck Inst Chem, Minerva Res Grp, D-55128 Mainz, Germany 2.Tianjin Univ, Inst Surface Earth Syst Sci, Sch Earth Syst Sci, Tianjin 300072, Peoples R China 3.Univ Edinburgh, EaStCHEM Sch Chem, Joseph Black Bldg, Edinburgh EH9 3FJ, Midlothian, Scotland 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 5.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 10001 |
| 推荐引用方式 GB/T 7714 | Su, Sihui,Xie, Qiaorong,Smith, Alan J.,et al. A New Structural Classification Scheme for Dissolved Organic Sulfur in Urban Snow from North China[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,2022,9(5):366-374. |
| APA | Su, Sihui.,Xie, Qiaorong.,Smith, Alan J..,Lang, Yunchao.,Hu, Wei.,...&Fu, Pingqing.(2022).A New Structural Classification Scheme for Dissolved Organic Sulfur in Urban Snow from North China.ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,9(5),366-374. |
| MLA | Su, Sihui,et al."A New Structural Classification Scheme for Dissolved Organic Sulfur in Urban Snow from North China".ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 9.5(2022):366-374. |
入库方式： OAI收割
来源：生态环境研究中心
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