Articles | Volume 18, issue 20
https://doi.org/10.5194/acp-18-15201-2018
https://doi.org/10.5194/acp-18-15201-2018
Research article
 | 
23 Oct 2018
Research article |  | 23 Oct 2018

Temporal variations in the hygroscopicity and mixing state of black carbon aerosols in a polluted megacity area

Kangning Li, Xingnan Ye, Hongwei Pang, Xiaohui Lu, Hong Chen, Xiaofei Wang, Xin Yang, Jianmin Chen, and Yingjun Chen

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Cited articles

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Short summary
Temporal variation in the hygroscopicity and its correlation with the mixing state of ambient BC particles were studied using a HTDMA–SP2 system. Secondary organic carbon formation and condensation of nitrates were mainly responsible for the changes of hygroscopicity of BC particles during daytime and nighttime, respectively. Different atmospheric aging processes led to the change of BC particles' mixing states, which play a fundamental role in determining their hygroscopicity.
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