Articles | Volume 18, issue 14
https://doi.org/10.5194/acp-18-10275-2018
https://doi.org/10.5194/acp-18-10275-2018
Research article
 | 
19 Jul 2018
Research article |  | 19 Jul 2018

Reduction in black carbon light absorption due to multi-pollutant emission control during APEC China 2014

Yuxuan Zhang, Xin Li, Meng Li, Yixuan Zheng, Guannan Geng, Chaopeng Hong, Haiyan Li, Dan Tong, Xin Zhang, Yafang Cheng, Hang Su, Kebin He, and Qiang Zhang

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Cited articles

Bond, T. C. and Sun, H.: Can Reducing Black Carbon Emissions Counteract Global Warming?, Environ. Sci. Technol., 39, 5921–5926, 2005. 
Bond, T. C. and Bergstrom, R. W.: Light Absorption by Carbonaceous Particles: An Investigative Review, Aerosol Sci. Technol., 40, 27–67, 2006. 
Cheng, Y. F., Eichler, H., Wiedensohler, A., Heintzenberg, J., Zhang, Y. H., Hu, M., Herrmann, H., Zeng, L. M., Liu, S., Gnauk, T., Brüggemann, E., and He, L. Y.: Aging degree of elemental carbon and non-light-absorbing aerosol components derived from in situ particle optical properties at Xinken in Pearl River Delta of China, J. Geophys. Res.-Atmos., 111, D20204, https://doi.org/10.1029/2005JD006929, 2006. 
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Short summary
When emission controls were implemented during APEC, we found that the reduction in BC light absorption was driven by simultaneously reducing the mass concentration and light-absorption capability of BC. The weakening of BC light-absorption capability could be attributed to less coating material on BC surfaces due to the decreased chemical production of secondary aerosols. Our results imply that a synergetic reduction in multiple-pollutant emissions could benefit both air quality and climate.
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