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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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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.
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Articles | Volume 17, issue 17
Atmos. Chem. Phys., 17, 10333–10348, 2017
https://doi.org/10.5194/acp-17-10333-2017

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

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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Latest update: 17 Jan 2021
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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.
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Final-revised paper
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