Articles | Volume 25, issue 18
https://doi.org/10.5194/acp-25-11505-2025
https://doi.org/10.5194/acp-25-11505-2025
Research article
 | 
29 Sep 2025
Research article |  | 29 Sep 2025

The impacts of pollution sources and temperature on the light absorption of HULIS were revealed by UHPLC-HRMS/MS at the molecular structure level

Tao Qiu, Yanting Qiu, Yongyi Yuan, Rui Su, Xiangxinyue Meng, Jialiang Ma, Xiaofan Wang, Yu Gu, Zhijun Wu, Yang Ning, Xiuyi Hua, Dapeng Liang, and Deming Dong

Related authors

Revealing the Underestimation of Anthropogenic Organosulfates in Atmospheric Aerosols in Urban Regions
Yanting Qiu, Junrui Wang, Tao Qiu, Jiajie Li, Yanxin Bai, Teng Liu, Ruiqi Man, Taomou Zong, Wenxu Fang, Jiawei Yang, Yu Xie, Zeyu Feng, Chenhui Li, Ying Wei, Kai Bi, Dapeng Liang, Ziqi Gao, Zhijun Wu, Yuchen Wang, and Min Hu
EGUsphere, https://doi.org/10.5194/egusphere-2025-4549,https://doi.org/10.5194/egusphere-2025-4549, 2025
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary

Cited articles

Allen, F., Greiner, R., and Wishart, D.: Competitive fragmentation modeling of ESI-MS/MS spectra for putative metabolite identification, Metabolomics, 11, 98–110, https://doi.org/10.1007/S11306-014-0676-4, 2015. 
Alves, C. A., Vicente, A. M. P., Gomes, J., Nunes, T., Duarte, M., and Bandowe, B. A. M.: Polycyclic aromatic hydrocarbons (PAHs) and their derivatives (oxygenated-PAHs, nitrated-PAHs and azaarenes) in size-fractionated particles emitted in an urban road tunnel, Atmos. Res., 180, 128–137, https://doi.org/10.1016/J.ATMOSRES.2016.05.013, 2016. 
Arangio, A. M., Slade, J. H., Berkemeier, T., Pöschl, U., Knopf, D. A., and Shiraiwa, M.: Multiphase chemical kinetics of oh radical uptake by molecular organic markers of biomass burning aerosols: Humidity and temperature dependence, surface reaction, and bulk diffusion, Journal of Physical Chemistry A, 119, 4533–4544, https://doi.org/10.1021/JP510489Z, 2015. 
Arp, H. P. H., Schwarzenbach, R. P., and Goss, K. U.: Ambient gas/particle partitioning. 2: The influence of particle source and temperature on sorption to dry terrestrial aerosols, Environ. Sci. Technol., 42, 5951–5957, https://doi.org/10.1021/ES703096P, 2008. 
Baduel, C., Voisin, D., and Jaffrezo, J. L.: Comparison of analytical methods for Humic Like Substances (HULIS) measurements in atmospheric particles, Atmos. Chem. Phys., 9, 5949–5962, https://doi.org/10.5194/acp-9-5949-2009, 2009. 
Download
Short summary
Our research reveals that some species formed by biomass burning and coal combustion dominate the light absorption of organic aerosols during winter. Cold weather helps these species accumulate in aerosols by slowing their degradation and altering atmospheric chemical processes. This means colder regions might experience stronger and more persistent climate impacts. Our findings highlight the importance of local temperatures and pollution sources when tackling climate challenges.
Share
Altmetrics
Final-revised paper
Preprint