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ACP | Articles | Volume 19, issue 14
Atmos. Chem. Phys., 19, 9531–9540, 2019
https://doi.org/10.5194/acp-19-9531-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Regional transport and transformation of air pollution in...

Atmos. Chem. Phys., 19, 9531–9540, 2019
https://doi.org/10.5194/acp-19-9531-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 29 Jul 2019

Research article | 29 Jul 2019

Mixing layer transport flux of particulate matter in Beijing, China

Yusi Liu et al.

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Chang, X., Wang, S., Zhao, B., Cai, S., and Hao, J.: Assessment of inter-city transport of particulate matter in the Beijing–Tianjin–Hebei region, Atmos. Chem. Phys., 18, 4843–4858, https://doi.org/10.5194/acp-18-4843-2018, 2018. 
Cheng, N., Li, Y., Cheng, B., Wang, X., Meng, F., Wang, Q., and Qiu, Q.: Comparisons of two serious air pollution episodes in winter and summer in Beijing, J. Environ. Sci-China., 69, 141–154, https://doi.org/10.1016/j.jes.2017.10.002, 2018. 
Cheng, J., Su, J., Cui, T., Li, X., Dong, X., Sun, F., Yang, Y., Tong, D., Zheng, Y., Li, Y., Li, J., Zhang, Q., and He, K.: Dominant role of emission reduction in PM2.5 air quality improvement in Beijing during 2013–2017: a model-based decomposition analysis, Atmos. Chem. Phys., 19, 6125–6146, https://doi.org/10.5194/acp-19-6125-2019, 2019. 
Ge, B., Wang, Z., Lin, W., Xu, X., Li, J., Ji, D., and Ma, Z.: Air pollution over the North China Plain and its implication of regional transport: A new sight from the observed evidences, Environ. Pollut., 234, 29–38, https://doi.org/10.1016/j.envpol.2017.10.084, 2018. 
Geiß, A., Wiegner, M., Bonn, B., Schäfer, K., Forkel, R., von Schneidemesser, E., Münkel, C., Chan, K. L., and Nothard, R.: Mixing layer height as an indicator for urban air quality?, Atmos. Meas. Tech., 10, 2969–2988, https://doi.org/10.5194/amt-10-2969-2017, 2017. 
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Short summary
Weak atmospheric dilution capability is a key factor leading to the frequent occurrence of serious air pollution. This study aims to analyze the mixing layer dilution capability of the atmosphere and to quantify the mixing layer PM2.5 transport flux. Our results showed the main controlling factors during the transition and heavy polluted period in Beijing. The results help in understanding the causes of air pollution and making decisions on prevention and control of air pollution.
Weak atmospheric dilution capability is a key factor leading to the frequent occurrence of...
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