Articles | Volume 22, issue 5
https://doi.org/10.5194/acp-22-3017-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-22-3017-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Review article
| 
07 Mar 2022
Review article |
| 07 Mar 2022
| 07 Mar 2022
Single-particle Raman spectroscopy for studying physical and chemical processes of atmospheric particles
Zhancong Liang
School of Energy and Environment, City University of Hong Kong,
Hong Kong, 999077, China
Yangxi Chu
State Key Laboratory of Environmental Criteria and Risk Assessment,
Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
Masao Gen
Faculty of Frontier Engineering, Institute of Science and
Engineering, Kanazawa University, Kanazawa, 920-1192, Japan
School of Energy and Environment, City University of Hong Kong,
Hong Kong, 999077, China
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This article is included in the Encyclopedia of Geosciences
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Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2022-838, https://doi.org/10.5194/acp-2022-838, 2022
Preprint withdrawn
Short summary
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Incense burning is a common religious ritual, especially in Asian and African communities, with massive particles emitted. While previous research mainly focused on the chemical compositions and potential health impacts of fresh incense particles, our work reveals that nitrate, accompanied by SOA, can rapidly form in incense-burning particles upon photochemical oxidation in the atmosphere. This finding could deepen our understanding of air pollution caused by religious activities.
This article is included in the Encyclopedia of Geosciences
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The contribution of cooking emissions to organic aerosols may exceed that of motor vehicles. However, little is known about how cooking-generated aerosols evolve in the outdoor environment. In this paper, we present a numerical study of the dispersion of cooking emissions. For plausible choices of the emission strength, cooking can yield much higher concentrations than traffic. This has important implications for public health and city planning.
This article is included in the Encyclopedia of Geosciences
Brix Raphael Go, Yan Lyu, Yan Ji, Yong Jie Li, Dan Dan Huang, Xue Li, Theodora Nah, Chun Ho Lam, and Chak K. Chan
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Biomass burning (BB) is a global phenomenon that releases large quantities of pollutants such as phenols and aromatic carbonyls into the atmosphere. These compounds can form secondary organic aerosols (SOAs) which play an important role in the Earth’s energy budget. In this work, we demonstrated that the direct irradiation of vanillin (VL) could generate aqueous SOA (aqSOA) such as oligomers. In the presence of nitrate, VL photo-oxidation can also form nitrated compounds.
This article is included in the Encyclopedia of Geosciences
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Short summary
The properties and fate of individual airborne particles can be significantly different, leading to distinct environmental impacts (e.g., climate and human health). While many instruments only analyze an ensemble of these particles, single-particle Raman spectroscopy enables unambiguous characterization of individual particles. This paper comprehensively reviews the applications of such a technique in studying atmospheric particles, especially for their physicochemical processing.
The properties and fate of individual airborne particles can be significantly different, leading...
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