Articles | Volume 18, issue 15
Atmos. Chem. Phys., 18, 11261–11275, 2018
https://doi.org/10.5194/acp-18-11261-2018

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

Atmos. Chem. Phys., 18, 11261–11275, 2018
https://doi.org/10.5194/acp-18-11261-2018

Research article 13 Aug 2018

Research article | 13 Aug 2018

Summertime fine particulate nitrate pollution in the North China Plain: increasing trends, formation mechanisms and implications for control policy

Liang Wen et al.

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Cited articles

Achtert, P., Birmili, W., Nowak, A., Wehner, B., Wiedensohler, A., Takegawa, N., Kondo, Y., Miyazaki, Y., Hu, M., and Zhu, T.: Hygroscopic growth of tropospheric particle number size distributions over the North China Plain, J. Geophys. Res., 114, D00G07, https://doi.org/10.1029/2008jd010921, 2009.
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Short summary
We present the first piece of observational evidence of the increasing trend of fine nitrate aerosol in the North China Plain (NCP) during 2005–2015. The summertime nitrate formation mechanism is dissected with a multiphase chemical box model based on observations at three different sites. The nitrate formation is most sensitive to NO2 and to a lesser extent to O3. NH3 plays a significant role in prompting the nitrate formation, but it is usually in excess in summer in the NCP region.
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