Articles | Volume 23, issue 2
https://doi.org/10.5194/acp-23-963-2023
https://doi.org/10.5194/acp-23-963-2023
Measurement report
 | 
20 Jan 2023
Measurement report |  | 20 Jan 2023

Measurement report: Changes in light absorption and molecular composition of water-soluble humic-like substances during a winter haze bloom-decay process in Guangzhou, China

Chunlin Zou, Tao Cao, Meiju Li, Jianzhong Song, Bin Jiang, Wanglu Jia, Jun Li, Xiang Ding, Zhiqiang Yu, Gan Zhang, and Ping'an Peng

Related authors

Drivers and implications of declining fossil fuel CO2 in Chinese cities revealed by radiocarbon measurements
Pingyang Li, Boji Lin, Zhineng Cheng, Jing Li, Jun Li, Duohong Chen, Tao Zhang, Run Lin, Sanyuan Zhu, Jun Liu, Yujun Lin, Shizhen Zhao, Guangcai Zhong, Zhenchuan Niu, Ping Ding, and Gan Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2025-1931,https://doi.org/10.5194/egusphere-2025-1931, 2025
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Multi-Element Dataset Across Diverse Climatic Zones and Soil Profiles in China’s Mountains
Yuying Wu, Yuhan Wang, Wenzheng Yang, Jie Zhang, Yanhong Wu, Jun Li, Gan Zhang, and Haijian Bing
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2025-302,https://doi.org/10.5194/essd-2025-302, 2025
Revised manuscript under review for ESSD
Short summary
Long–term Trends in PM2.5 Chemical Composition and Its Impact on Aerosol Properties: Field Observations from 2007 to 2020 in Pearl River Delta, South China
Yunfeng He, Xiang Ding, Quanfu He, Yuqing Zhang, Duohong Chen, Tao Zhang, Kong Yang, Junqi Wang, Qian Cheng, Hao Jiang, Zirui Wang, Ping Liu, Xinming Wang, and Michael Boy
EGUsphere, https://doi.org/10.5194/egusphere-2025-2204,https://doi.org/10.5194/egusphere-2025-2204, 2025
Short summary
Using nanoindentation to quantify the mechanical profile of Wufeng-Longmaxi formation shale in Southwest China: Link to sedimentary conditions
Jianfeng Wang, Chao Yang, Yuke Liu, Wenmin Jiang, Yun Li, Ting Zhang, Yijun Zheng, Yuhong Liao, Qiuli Huo, Li Fu, Yusheng Wang, Ping'an Peng, and Yongqiang Xiong
EGUsphere, https://doi.org/10.5194/egusphere-2025-1365,https://doi.org/10.5194/egusphere-2025-1365, 2025
Short summary
Molecular insight into aqueous-phase photolysis and photooxidation of water-soluble organic matter emitted from biomass burning and coal combustion
Tao Cao, Cuncun Xu, Hao Chen, Jianzhong Song, Jun Li, Haiyan Song, Bin Jiang, Yin Zhong, and Ping’an Peng
EGUsphere, https://doi.org/10.5194/egusphere-2025-561,https://doi.org/10.5194/egusphere-2025-561, 2025
Short summary

Related subject area

Subject: Aerosols | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
Asian dust transport of proteinaceous matter from the Gobi Desert to northern China
Ren-Guo Zhu, Hua-Yun Xiao, Meiju Yin, Hao Xiao, Zhongkui Zhou, Yuanyuan Pan, Guo Wei, and Cheng Liu
Atmos. Chem. Phys., 25, 7699–7718, https://doi.org/10.5194/acp-25-7699-2025,https://doi.org/10.5194/acp-25-7699-2025, 2025
Short summary
Machine-learning-assisted chemical characterization and optical properties of atmospheric brown carbon in Nanjing, China
Yu Huang, Xingru Li, Dan Dan Huang, Ruoyuan Lei, Binhuang Zhou, Yunjiang Zhang, and Xinlei Ge
Atmos. Chem. Phys., 25, 7619–7645, https://doi.org/10.5194/acp-25-7619-2025,https://doi.org/10.5194/acp-25-7619-2025, 2025
Short summary
Technical note: Reconstructing missing surface aerosol elemental carbon data in long-term series with ensemble learning
Qingxiao Meng, Yunjiang Zhang, Sheng Zhong, Jie Fang, Lili Tang, Yongcai Rao, Minfeng Zhou, Jian Qiu, Xiaofeng Xu, Jean-Eudes Petit, Olivier Favez, and Xinlei Ge
Atmos. Chem. Phys., 25, 7485–7498, https://doi.org/10.5194/acp-25-7485-2025,https://doi.org/10.5194/acp-25-7485-2025, 2025
Short summary
Enhanced emission of intermediate-volatility/semi-volatile organic matter in gas and particle phases from ship exhausts with low-sulfur fuels
Binyu Xiao, Fan Zhang, Zeyu Liu, Yan Zhang, Rui Li, Can Wu, Xinyi Wan, Yi Wang, Yubao Chen, Yong Han, Min Cui, Libo Zhang, Yingjun Chen, and Gehui Wang
Atmos. Chem. Phys., 25, 7053–7069, https://doi.org/10.5194/acp-25-7053-2025,https://doi.org/10.5194/acp-25-7053-2025, 2025
Short summary
Measurement report: Crustal materials play an increasing role in elevating particle pH – insights from 12-year records in a typical inland city of China
Hongyu Zhang, Shenbo Wang, Zhangsen Dong, Xiao Li, and Ruiqin Zhang
Atmos. Chem. Phys., 25, 6943–6955, https://doi.org/10.5194/acp-25-6943-2025,https://doi.org/10.5194/acp-25-6943-2025, 2025
Short summary

Cited articles

An, Z., Huang, R. J., Zhang, R., Tie, X., Li, G., Cao, J., Zhou, W., Shi, Z., Han, Y., Gu, Z., and Ji, Y.: Severe haze in northern China: A synergy of anthropogenic emissions and atmospheric processes, P. Natl. Acad. Sci. USA, 116, 8657–8666, https://doi.org/10.1073/pnas.1900125116, 2019. 
Berkemeier, T., Ammann, M., Mentel, T. F., Poschl, U., and Shiraiwa, M.: Organic nitrate contribution to new particle formation and growth in secondary organic aerosols from alpha-pinene ozonolysis, Environ. Sci. Technol., 50, 6334–6342, https://doi.org/10.1021/acs.est.6b00961, 2016. 
Bianco, A., Deguillaume, L., Vaitilingom, M., Nicol, E., Baray, J. L., Chaumerliac, N., and Bridoux, M.: Molecular characterization of cloud water samples collected at the Puy de Dome (France) by Fourier transform ion cyclotron resonance mass spectrometry, Environ. Sci. Technol., 52, 10275–10285, https://doi.org/10.1021/acs.est.8b01964, 2018. 
Blair, S. L., MacMillan, A. C., Drozd, G. T., Goldstein, A. H., Chu, R. K., Paša-Tolić, L., Shaw J. B., Tolić, N., Lin, P., Laskin, J., Laskin, A., and Nizkorodov, S. A.: Molecular characterization of organosulfur compounds in biodiesel and diesel fuel secondary organic aerosol. American Chemical Society, Environ. Sci. Technol., 51, 119–127, https://doi.org/10.1021/acs.est.6b03304, 2017. 
Cao, T., Li, M., Zou, C., Fan, X., Song, J., Jia, W., Yu, C., Yu, Z., and Peng, P.: Chemical composition, optical properties, and oxidative potential of water- and methanol-soluble organic compounds emitted from the combustion of biomass materials and coal, Atmos. Chem. Phys., 21, 13187–13205, https://doi.org/10.5194/acp-21-13187-2021, 2021. 
Download
Short summary
In this study, PM2.5 samples were obtained during a winter haze event in Guangzhou, China, and light absorption and molecular composition of humic-like substances (HULIS) were investigated by UV–Vis spectrophotometry and ultrahigh-resolution mass spectrometry. The findings obtained present some differences from the results reported in other regions of China and significantly enhanced our understanding of HULIS evolution during haze bloom-decay processes in the subtropic region of southern China.
Share
Altmetrics
Final-revised paper
Preprint