Articles | Volume 20, issue 22
https://doi.org/10.5194/acp-20-14321-2020
https://doi.org/10.5194/acp-20-14321-2020
Research article
 | 
24 Nov 2020
Research article |  | 24 Nov 2020

Tracing the evolution of morphology and mixing state of soot particles along with the movement of an Asian dust storm

Liang Xu, Satoshi Fukushima, Sophie Sobanska, Kotaro Murata, Ayumi Naganuma, Lei Liu, Yuanyuan Wang, Hongya Niu, Zongbo Shi, Tomoko Kojima, Daizhou Zhang, and Weijun Li

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Cited articles

Adachi, K., Moteki, N., Kondo, Y., and Igarashi, Y.: Mixing states of light-absorbing particles measured using a transmission electron microscope and a single-particle soot photometer in Tokyo, Japan, J. Geophys. Res.-Atmos., 121, 9153–9164, https://doi.org/10.1002/2016JD025153, 2016. 
Brasil, A. M., Farias, T. L., and Carvalho, M. G.: A recipe for image characterization of fractal-Like aggregates, J. Aerosol Sci, 30, 1379–1389, https://doi.org/10.1016/S0021-8502(99)00026-9, 1999. 
Brunamonti, S., Krieger, U. K., Marcolli, C., and Peter, T.: Redistribution of black carbon in aerosol particles undergoing liquid-liquid phase separation, Geophys. Res. Lett., 42, 2532–2539, https://doi.org/10.1002/2014GL062908, 2015. 
Buseck, P. R., Adachi, K., Gelencsér, A., Tompa, É., and Pósfai, M.: Ns-Soot: A Material-Based Term for Strongly Light-Absorbing Carbonaceous Particles, Aerosol Sci. Technol., 48, 777–788, https://doi.org/10.1080/02786826.2014.919374, 2014. 
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Short summary
We quantified the mixing structures of soot particles and found that the dominant mixing structure changed from fresh to partially embedded to fully embedded along the pathway of an Asian dust storm from eastern China to Japan. Soot particles became more compact following transport. Our findings not only provide direct evidence for soot aging during regional transport but also help us understand how their morphology changes in different air environments.
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