Articles | Volume 21, issue 8
https://doi.org/10.5194/acp-21-6431-2021
https://doi.org/10.5194/acp-21-6431-2021
Research article
 | 
28 Apr 2021
Research article |  | 28 Apr 2021

Seasonal variation in atmospheric pollutants transport in central Chile: dynamics and consequences

Rémy Lapere, Laurent Menut, Sylvain Mailler, and Nicolás Huneeus

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Cited articles

Barraza, F., Lambert, F., Jorquera, H., Villalobos, A. M., and Gallardo, L.: Temporal evolution of main ambient PM2.5 sources in Santiago, Chile, from 1998 to 2012, Atmos. Chem. Phys., 17, 10093–10107, https://doi.org/10.5194/acp-17-10093-2017, 2017. a, b, c, d, e
Chung, S. H. and Seinfeld, J. H.: Climate response of direct radiative forcing of anthropogenic black carbon, J. Geophys. Res., 110, D11102, https://doi.org/10.1029/2004JD005441, 2005. a
de la Barrera, F., Barraza, F., Favier, P., Ruiz, V., and Quense, J.: Megafires in Chile 2017: Monitoring multiscale environmental impacts of burned ecosystems, Sci. Total Environ., 637–638, 1526–1536, https://doi.org/10.1016/j.scitotenv.2018.05.119, 2018. a
Dominutti, P., Nogueira, T., Fornaro, A., and Borbon, A.: One decade of VOCs measurements in São Paulo megacity: Composition, variability, and emission evaluation in a biofuel usage context, Sci. Total Environ., 738, 139790, https://doi.org/10.1016/j.scitotenv.2020.139790, 2020. a
Ehhalt, D., Prather, M., Dentener, F., Derwent, R., Dlugokencky, E., Holland, E., Isaksen, I., Katima, J., Kirchhoff, V., Matson, P., Midgley, P., and Wang, M.: Climate Change 2001: The Physical Science Basis. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change, chap. Atmospheric Chemistry and Greenhouse Gases, edited by: Houghton, J. T., Ding, Y., Griggs, D. J., Noguer, M., van der Linden, P. J., Dai, X., Maskell, K., and Johnson, C. A., Cambridge University Press, Cambridge, UK and New York, NY, USA, 2001. a
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Short summary
Based on modeling, the transport dynamics of ozone and fine particles in central Chile are investigated. Santiago emissions are found to influence air quality along a 1000 km plume as far as Argentina and northern Chile. In turn, emissions outside the metropolis contribute significantly to its recorded particles concentration. Emissions of precursors from Santiago are found to lead to the formation of a persistent ozone bubble in altitude, a phenomenon which is described for the first time.
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