Articles | Volume 18, issue 15
Atmos. Chem. Phys., 18, 11261–11275, 2018

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

Atmos. Chem. Phys., 18, 11261–11275, 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,, 2009.
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Brink, H. T., Otjes, R., Jongejan, P., and Kos, G.: Monitoring of the ratio of nitrate to sulphate in size-segregated submicron aerosol in the Netherlands, Atmos. Res., 92, 270–276, 2009.
Brown, S. G., Hyslop, N. P., Roberts, P. T., McCarthy, M. C., Lurmann, F. W.: Wintertime vertical variations in particulate matter (PM) and precursor concentrations in the San Joaquin Valley during the California Regional Coarse PM/Fine PM Air Quality Study, J. Air Waste Manag. Assoc., 56, 1267–1277,, 2006.
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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.
Final-revised paper