Articles | Volume 21, issue 2
https://doi.org/10.5194/acp-21-1341-2021
https://doi.org/10.5194/acp-21-1341-2021
Measurement report
 | 
01 Feb 2021
Measurement report |  | 01 Feb 2021

Measurement report: Effects of photochemical aging on the formation and evolution of summertime secondary aerosol in Beijing

Tianzeng Chen, Jun Liu, Qingxin Ma, Biwu Chu, Peng Zhang, Jinzhu Ma, Yongchun Liu, Cheng Zhong, Pengfei Liu, Yafei Wang, Yujing Mu, and Hong He

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Latest update: 13 Jun 2024
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Short summary
Effects of photochemical aging on the formation and evolution of summertime secondary aerosol were systematically investigated in a suburb of Beijing. Higher PM1 concentration accompanied longer photochemical age (ta). Sulfate and more-oxidized OOA formation were significantly sensitive to the increase in ta, and their contributions were greatly enhanced at elevated ta levels. Our results suggested that photochemical aging process played a crucial role in PM1 and O3 pollution in summertime.
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