Articles | Volume 21, issue 11
Atmos. Chem. Phys., 21, 8747–8759, 2021
https://doi.org/10.5194/acp-21-8747-2021
Atmos. Chem. Phys., 21, 8747–8759, 2021
https://doi.org/10.5194/acp-21-8747-2021

Research article 10 Jun 2021

Research article | 10 Jun 2021

Impact of international shipping emissions on ozone and PM2.5 in East Asia during summer: the important role of HONO and ClNO2

Jianing Dai and Tao Wang

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Cited articles

Aksoyoglu, S., Baltensperger, U., and Prévôt, A. S. H.: Contribution of ship emissions to the concentration and deposition of air pollutants in Europe, Atmos. Chem. Phys., 16, 1895–1906, https://doi.org/10.5194/acp-16-1895-2016, 2016. 
Andersson, C., Bergström, R., and Johansson, C.: Population exposure and mortality due to regional background PM in Europe – Long-term simulations of source region and shipping contributions, Atmos. Environ., 43, 3614–3620, https://doi.org/10.1016/j.atmosenv.2009.03.040, 2009. 
Bertram, T. H. and Thornton, J. A.: Toward a general parameterization of N2O5 reactivity on aqueous particles: the competing effects of particle liquid water, nitrate and chloride, Atmos. Chem. Phys., 9, 8351–8363, https://doi.org/10.5194/acp-9-8351-2009, 2009. 
Campling, P., Janssen, L., Vanherle, K., Cofala, J., Heyes, C., and Sander, R.: Specific evaluation of emissions from shipping including assessment for the establishment of possible new emission control areas in European Seas, Flemish Institute for Technological Research (VITO), Mol, Belgium, 2013. 
Corbett, J. J. and Fischbeck, P.: Emissions from ships, Science, 278, 823–824, https://doi.org/10.1126/science.278.5339.823, 1997. 
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We used the WRF–Chem model with the latest HONO and ClNO2 processes to investigate their effects on the concentrations of ROx radicals, O3, and PM2.5 in Asia during summer. The results show that the ship-derived HONO and ClNO2 increased the ROx radical concentration by 2–3 times and subsequently increased the O3 and PM2.5 concentrations in marine areas. These findings indicate the importance of these nitrogen processes in the evaluation of the impact of ship emissions on air quality.
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