Articles | Volume 24, issue 15
https://doi.org/10.5194/acp-24-8737-2024
https://doi.org/10.5194/acp-24-8737-2024
Measurement report
 | 
08 Aug 2024
Measurement report |  | 08 Aug 2024

Measurement report: Impact of emission control measures on environmental persistent free radicals and reactive oxygen species – a short-term case study in Beijing

Yuanyuan Qin, Xinghua Zhang, Wei Huang, Juanjuan Qin, Xiaoyu Hu, Yuxuan Cao, Tianyi Zhao, Yang Zhang, Jihua Tan, Ziyin Zhang, Xinming Wang, and Zhenzhen Wang

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Cited articles

Ainur, D., Chen, Q., Sha, T., Zarak, M., Dong, Z., Guo, W., Zhang, Z., Dina, K., and An, T.: Outdoor health risk of atmospheric particulate matter at night in Xi'an, northwestern China, Environ. Sci. Technol., 57, 9252–9265, https://doi.org/10.1021/acs.est.3c02670, 2023. 
Arangio, A. M., Tong, H., Socorro, J., Pöschl, U., and Shiraiwa, M.: Quantification of environmentally persistent free radicals and reactive oxygen species in atmospheric aerosol particles, Atmos. Chem. Phys., 16, 13105–13119, https://doi.org/10.5194/acp-16-13105-2016, 2016. 
Bates, J. T., Fang, T., Verma, V., Zeng, L., Weber, R. J., Tolbert, P. E., Abrams, J. Y., Sarnat, S. E., Klein, M., and Mulholland, J. A.: Review of acellular assays of ambient particulate matter oxidative potential: methods and relationships with composition, sources, and health effects, Environ. Sci. Technol., 53, 4003–4019, https://doi.org/10.1021/acs.est.8b03430, 2019. 
Borrowman, C. K., Zhou, S., Burrow, T. E., and Abbatt, J. P.: Formation of environmentally persistent free radicals from the heterogeneous reaction of ozone and polycyclic aromatic compounds, Phys. Chem. Chem. Phys., 18, 205–212, https://doi.org/10.1039/C5CP05606C, 2016. 
Brehmer, C., Lai, A., Clark, S., Shan, M., Ni, K., Ezzati, M., Yang, X., Baumgartner, J., Schauer, J. J., and Carter, E.: The oxidative potential of personal and household PM2.5 in a rural setting in southwestern China, Environ. Sci. Technol., 53, 2788–2798, https://doi.org/10.1021/acs.est.8b05120, 2019. 
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Short summary
Environmental persistent free radicals (EPFRs) and reactive oxygen species (ROSs) play an active role in the atmosphere. Despite control measures having effectively reduced their emissions, reductions were less than in PM2.5. Emission control measures performed well in achieving Parade Blue, but reducing the impact of the atmosphere on human health remains challenging. Thus, there is a need to reassess emission control measures to better address the challenges posed by EPFRs and ROSs.
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