Articles | Volume 24, issue 12
https://doi.org/10.5194/acp-24-7085-2024
https://doi.org/10.5194/acp-24-7085-2024
Research article
 | 
20 Jun 2024
Research article |  | 20 Jun 2024

In situ measurement of organic aerosol molecular markers in urban Hong Kong during a summer period: temporal variations and source apportionment

Hongyong Li, Xiaopu Lyu, Likun Xue, Yunxi Huo, Dawen Yao, Haoxian Lu, and Hai Guo

Related authors

Explainable ensemble machine learning revealing spatiotemporal heterogeneity in driving factors of particulate nitro-aromatic compounds in eastern China
Min Li, Xinfeng Wang, Tianshuai Li, Yujia Wang, Yueru Jiang, Yujiao Zhu, Wei Nie, Rui Li, Jian Gao, Likun Xue, Qingzhu Zhang, and Wenxing Wang
Atmos. Chem. Phys., 25, 8407–8425, https://doi.org/10.5194/acp-25-8407-2025,https://doi.org/10.5194/acp-25-8407-2025, 2025
Short summary
Long-range transported dust enhances ice nucleating particles abundance and cloud formation in the North China Plain
Yue Sun, Yujiao Zhu, Hengde Liu, Lanxiadi Chen, Hongyong Li, Yujian Bi, Di Wu, Xiangkun Yin, Can Cui, Ping Liu, Yu Yang, Jisheng Zhang, Yanqiu Nie, Lanxin Zhang, Jiangshan Mu, Yuhong Liu, Zhaoxin Guo, Qinyi Li, Yuqiang Zhang, Xinfeng Wang, Mingjin Tang, Wenxing Wang, and Likun Xue
EGUsphere, https://doi.org/10.5194/egusphere-2025-2855,https://doi.org/10.5194/egusphere-2025-2855, 2025
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Measurement report: Molecular Insights into Organic Aerosol Sources and Formation at a Regional Background Site in South China
Hongxing Jiang, Yuanghang Deng, Yunxi Huo, Fengwen Wang, Yingjun Chen, and Hai Guo
EGUsphere, https://doi.org/10.5194/egusphere-2025-2264,https://doi.org/10.5194/egusphere-2025-2264, 2025
Short summary
High-resolution mapping of on-road vehicle emissions with real-time traffic datasets based on big data
Yujia Wang, Hongbin Wang, Bo Zhang, Peng Liu, Xinfeng Wang, Shuchun Si, Likun Xue, Qingzhu Zhang, and Qiao Wang
Atmos. Chem. Phys., 25, 5537–5555, https://doi.org/10.5194/acp-25-5537-2025,https://doi.org/10.5194/acp-25-5537-2025, 2025
Short summary
Spatial–temporal patterns in anthropogenic and biomass burning emission contributions to air pollution and mortality burden changes in India from 1995 to 2014
Bin Luo, Yuqiang Zhang, Tao Tang, Hongliang Zhang, Jianlin Hu, Jiangshan Mu, Wenxing Wang, and Likun Xue
Atmos. Chem. Phys., 25, 4767–4783, https://doi.org/10.5194/acp-25-4767-2025,https://doi.org/10.5194/acp-25-4767-2025, 2025
Short summary

Related subject area

Subject: Aerosols | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
Particle flux–gradient relationships in the high Arctic: emission and deposition patterns across three surface types
Theresa Mathes, Heather Guy, John Prytherch, Julia Kojoj, Ian Brooks, Sonja Murto, Paul Zieger, Birgit Wehner, Michael Tjernström, and Andreas Held
Atmos. Chem. Phys., 25, 8455–8474, https://doi.org/10.5194/acp-25-8455-2025,https://doi.org/10.5194/acp-25-8455-2025, 2025
Short summary
Advances in characterization of black carbon particles and their associated coatings using the soot-particle aerosol mass spectrometer in Singapore, a complex city environment
Mutian Ma, Laura-Hélèna Rivellini, Yichen Zong, Markus Kraft, Liya E. Yu, and Alex King Yin Lee
Atmos. Chem. Phys., 25, 8185–8211, https://doi.org/10.5194/acp-25-8185-2025,https://doi.org/10.5194/acp-25-8185-2025, 2025
Short summary
Iron isotopes suggest significant aerosol dissolution over the Pacific Ocean
Capucine Camin, François Lacan, Catherine Pradoux, Marie Labatut, Anne Johansen, and James W. Murray
Atmos. Chem. Phys., 25, 8213–8228, https://doi.org/10.5194/acp-25-8213-2025,https://doi.org/10.5194/acp-25-8213-2025, 2025
Short summary
Enrichment of organic nitrogen in fog residuals observed in the Italian Po Valley
Fredrik Mattsson, Almuth Neuberger, Liine Heikkinen, Yvette Gramlich, Marco Paglione, Matteo Rinaldi, Stefano Decesari, Paul Zieger, Ilona Riipinen, and Claudia Mohr
Atmos. Chem. Phys., 25, 7973–7989, https://doi.org/10.5194/acp-25-7973-2025,https://doi.org/10.5194/acp-25-7973-2025, 2025
Short summary
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

Cited articles

Bunce, N. J., Liu, L., Zhu, J., and Lane, D. A.: Reaction of naphthalene and its derivatives with hydroxyl radicals in the gas phase, Environ. Sci. Technol., 31, 2252–2259, https://doi.org/10.1021/es960813g, 1997. 
Cheng, Y., Ma, Y., and Hu, D.: Tracer-based source apportioning of atmospheric organic carbon and the influence of anthropogenic emissions on secondary organic aerosol formation in Hong Kong, Atmos. Chem. Phys., 21, 10589–10608, https://doi.org/10.5194/acp-21-10589-2021, 2021. 
Chow, K. S., Huang, X. H. H., and Yu, J. Z.: Quantification of nitroaromatic compounds in atmospheric fine particulate matter in Hong Kong over 3 years: field measurement evidence for secondary formation derived from biomass burning emissions, Environ. Chem., 13, 665, https://doi.org/10.1071/EN15174, 2015. 
Chow, W. S., Huang, X. H. H., Leung, K. F., Huang, L., Wu, X., and Yu, J. Z.: Molecular and elemental marker-based source apportionment of fine particulate matter at six sites in Hong Kong, China, Sci. Total Environ., 813, 152652, https://doi.org/10.1016/j.scitotenv.2021.152652, 2022. 
Claeys, M., Graham, B., Vas, G., Wang, W., Vermeylen, R., Pashynska, V., Cafmeyer, J., Guyon, P., Andreae, M. O., Artaxo, P., and Maenhaut, W.: Formation of secondary organic aerosols through photooxidation of isoprene, Science, 303, 1173–1176, https://doi.org/10.1126/science.1092805, 2004. 
Download
Short summary
Organic aerosol is ubiquitous in the atmosphere and largely explains the gap between current levels of fine particulate matter in many cities and the World Health Organization guideline values. This study highlights the dominant contributions of cooking emissions to organic aerosol when marine air prevailed in Hong Kong, which were occasionally overwhelmed by aromatics-derived secondary organic aerosol in continental ouflows.
Share
Altmetrics
Final-revised paper
Preprint