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ACP | Articles | Volume 19, issue 15
Atmos. Chem. Phys., 19, 10129–10160, 2019
https://doi.org/10.5194/acp-19-10129-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 19, 10129–10160, 2019
https://doi.org/10.5194/acp-19-10129-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 12 Aug 2019

Research article | 12 Aug 2019

Transport of Po Valley aerosol pollution to the northwestern Alps – Part 2: Long-term impact on air quality

Henri Diémoz et al.

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Cited articles

Agnesod, G., Moulin, P.-A., Pession, G., Villard, H., and Zublena, M.: Étude Air Espace Mont-Blanc – Rapport Technique, Tech. rep., Espace Mont Blanc, available at: http://www.arpa.vda.it/images/stories/ARPA/aria/progetti/progairmb_agnesod_2003.pdf (last access: 2 August 2019), 2003. a
Allen, S., Allen, D., Phoenix, V. R., Le Roux, G., Durántez Jiménez, P., Simonneau, A., Binet, S., and Galop, D.: Atmospheric transport and deposition of microplastics in a remote mountain catchment, Nat. Geosci., 12, 339–344, https://doi.org/10.1038/s41561-019-0335-5, 2019. a, b
Ångström, A.: On the Atmospheric Transmission of Sun Radiation and on Dust in the Air, Geogr. Ann., 11, 156–166, 1929. a
Ambrosini, R., Azzoni, R. S., Pittino, F., Diolaiuti, G., Franzetti, A., and Parolini, M.: First evidence of microplastic contamination in the supraglacial debris of an alpine glacier, Environ. Pollut., 253, 297–301, https://doi.org/10.1016/j.envpol.2019.07.005, 2019. a, b
ARPA Valle d'Aosta: ARPA Valle d'Aosta: Air quality data, available at: http://www.arpa.vda.it/it/aria/la-qualità-dell-aria/stazioni-di-monitoraggio/inquinanti-export-dati, last access: 2 August 2019. 
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In a companion paper, we investigated airmass exchanges from the Po plain to the Alps through detailed case studies. Here (part 2) we use 3 years of multi-sensor observations and models to quantify the long-term impact of transport on air quality (>25% on PM10) and aerosol physico-chemical characteristics. We quantify the frequency of occurrence (up to 70% of days) in relation to meteorology (wind flows). We also show how the experimental results can improve air-quality forecasting capabilities.
In a companion paper, we investigated airmass exchanges from the Po plain to the Alps through...
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