Articles | Volume 25, issue 19
https://doi.org/10.5194/acp-25-12037-2025
https://doi.org/10.5194/acp-25-12037-2025
Measurement report
 | 
02 Oct 2025
Measurement report |  | 02 Oct 2025

Measurement report: simultaneous measurement on gas- and particle-phase water-soluble organics in Shanghai: enhanced light absorption of transported Asian dust

Zheng Li, Gehui Wang, Binyu Xiao, Rongjie Li, Can Wu, Shaojun Lv, Feng Wu, Qingyan Fu, and Yusen Duan

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Cited articles

Adebiyi, A. A. and Kok, J. F.: Climate models miss most of the coarse dust in the atmosphere, Sci. Adv., 6, https://doi.org/10.1126/sciadv.aaz9507, 2020. 
Chen, Q., Miao, R. Q., Geng, G. N., Shrivastava, M., Dao, X., Xu, B. Y., Sun, J. Q., Zhang, X., Liu, M. Y., Tang, G. G., Tang, Q., Hu, H. W., Huang, R. J., Wang, H., Zheng, Y., Qin, Y., Guo, S., Hu, M., and Zhu, T.: Widespread 2013–2020 decreases and reduction challenges of organic aerosol in China, Nat. Commun., 15, https://doi.org/10.1038/s41467-024-48902-0, 2024. 
Chen, S., Zhao, D., Huang, J., He, J., Chen, Y., Chen, J., Bi, H., Lou, G., Du, S., Zhang, Y., and Yang, F.: Mongolia Contributed More than 42 % of the Dust Concentrations in Northern China in March and April 2023, Adv. Atmos. Sci., 40, 1549–1557, https://doi.org/10.1007/s00376-023-3062-1, 2023. 
Cheng, Y., He, K. B., Du, Z. Y., Engling, G., Liu, J. M., Ma, Y. L., Zheng, M., and Weber, R. J.: The characteristics of brown carbon aerosol during winter in Beijing, Atmos. Environ., 127, 355–364, https://doi.org/10.1016/j.atmosenv.2015.12.035, 2016. 
El-Sayed, M. M. H., Ortiz-Montalvo, D. L., and Hennigan, C. J.: The effects of isoprene and NOx on secondary organic aerosols formed through reversible and irreversible uptake to aerosol water, Atmos. Chem. Phys., 18, 1171–1184, https://doi.org/10.5194/acp-18-1171-2018, 2018. 
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Gas-to-aerosol partitioning of organics was investigated in Shanghai during the 2023 dust storm period. We found the partitioning coefficients (Fp) of water-soluble organic compounds in the dust storm period (DS) were comparable to those during a haze episode (HE), and aerosol liquid water content primarily drove Fp variation in HE, while pH was the dominant factor in DS. Moreover, an enhanced light absorption of Asian dust by brown carbon, mainly in coarse mode, formation was revealed.
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