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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 17, issue 17
Atmos. Chem. Phys., 17, 10333–10348, 2017
https://doi.org/10.5194/acp-17-10333-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

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

Atmos. Chem. Phys., 17, 10333–10348, 2017
https://doi.org/10.5194/acp-17-10333-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 04 Sep 2017

Research article | 04 Sep 2017

Ageing and hygroscopicity variation of black carbon particles in Beijing measured by a quasi-atmospheric aerosol evolution study (QUALITY) chamber

Jianfei Peng et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Wenzel on behalf of the Authors (25 Jul 2017)  Author's response
ED: Publish as is (25 Jul 2017) by Zhanqing Li
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Short summary
Rapid growth of BC particles was observed in Beijing using a new outdoor chamber, with an average growth rate of 26 ± 11 nm h−1. Secondary organic aerosol (SOA) accounted for more than 90 % of the coating mass. The hygroscopic growth factor of BC particles increased to 1.06–1.08 upon ageing. The κ (kappa) values for BC particles were calculated as only 0.035, indicating that initial photochemical ageing of BC particles does not appreciably alter the particle hygroscopicity in Beijing.
Rapid growth of BC particles was observed in Beijing using a new outdoor chamber, with an...
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