Molecular Imaging Reveals Two Distinct Mixing States of PM2.5 Particles Sampled in a Typical Beijing Winter Pollution Case
文献类型：期刊论文
| 作者 | Li, Ye3; Zhou, Yadong3; Guo, Wenxiao4; Zhang, Xin5; Huang, Ye; He, Erkai; Li, Runkui1; Yan, Beizhan3; Wang, Hailong6; Mei, Fan6 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2023-04-18 |
| 卷号 | N/A |
| 关键词 | PM2 5 mixing state 3-D molecular imaging surface chemistry core-shell structure |
| DOI | 10.1021/acs.est.2c08694 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Mixing states of aerosol particles are crucial for understanding the role of aerosols in influencing air quality and climate. However, a fundamental understanding of the complex mixing states is still lacking because most traditional analysis techniques only reveal bulk chemical and physical properties with limited surface and 3-D information. In this research, 3-D molecular imaging enabled by ToF-SIMS was used to elucidate the mixing states of PM2.5 samples obtained from a typical Beijing winter haze event. In light pollution cases, a thin organic layer covers separated inorganic particles; while in serious pollution cases, ion exchange and an organic-inorganic mixing surface on large-area particles were observed. The new results provide key 3-D molecular information of mixing states, which is highly potential for reducing uncertainty and bias in representing aerosol-cloud interactions in current Earth System Models and improving the understanding of aerosols on air quality and human health. |
| WOS关键词 | ION MASS-SPECTROMETRY ; ORGANIC AEROSOL ; HYGROSCOPIC BEHAVIOR ; SULFATE FORMATION ; AIR-QUALITY ; UNCERTAINTY ; CLIMATE ; VERSION ; HAZE |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:000968340500001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200789]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 作者单位 | 1.Pacific Northwest Natl Lab, Phys & Computat Sci Directorate, Richland, WA 99354 USA 2.Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA 3.East China Normal Univ, Minist Educ, Sch Geog Sci, Key Lab Geog Informat Sci, Shanghai 200241, Peoples R China 4.Columbia Univ, Lamont Doherty Earth Observ, Div Geochem, Palisades, NY 10964 USA 5.Pacific Northwest Natl Lab, Environm Mol Sci Lab, Richland, WA 99354 USA 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ye,Zhou, Yadong,Guo, Wenxiao,et al. Molecular Imaging Reveals Two Distinct Mixing States of PM2.5 Particles Sampled in a Typical Beijing Winter Pollution Case[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2023,N/A. |
| APA | Li, Ye.,Zhou, Yadong.,Guo, Wenxiao.,Zhang, Xin.,Huang, Ye.,...&Zhu, Zihua.(2023).Molecular Imaging Reveals Two Distinct Mixing States of PM2.5 Particles Sampled in a Typical Beijing Winter Pollution Case.ENVIRONMENTAL SCIENCE & TECHNOLOGY,N/A. |
| MLA | Li, Ye,et al."Molecular Imaging Reveals Two Distinct Mixing States of PM2.5 Particles Sampled in a Typical Beijing Winter Pollution Case".ENVIRONMENTAL SCIENCE & TECHNOLOGY N/A(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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