Articles | Volume 21, issue 7
Atmos. Chem. Phys., 21, 5301–5314, 2021
https://doi.org/10.5194/acp-21-5301-2021
Atmos. Chem. Phys., 21, 5301–5314, 2021
https://doi.org/10.5194/acp-21-5301-2021
Measurement report
07 Apr 2021
Measurement report | 07 Apr 2021

Measurement report: Comparison of wintertime individual particles at ground level and above the mixed layer in urban Beijing

Wenhua Wang et al.

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We compared the characteristics of individual particles at ground level and above the mixed-layer height. We found that the particles above the mixed-layer height during haze periods are more aged compared to ground level. More coal-combustion-related primary organic particles were found above the mixed-layer height. We suggest that the particles above the mixed-layer height are affected by the surrounding areas, and once mixed down to the ground, they might contribute to ground air pollution.
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