Articles | Volume 19, issue 15
https://doi.org/10.5194/acp-19-10129-2019
https://doi.org/10.5194/acp-19-10129-2019
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, Gian Paolo Gobbi, Tiziana Magri, Giordano Pession, Sara Pittavino, Ivan K. F. Tombolato, Monica Campanelli, and Francesca Barnaba

Data sets

ARPA Valle d'Aosta: Air quality data ARPA Valle d'Aosta http://www.arpa.vda.it/it/aria/la-qualità-dell-aria/stazioni-di-monitoraggio/inquinanti-export-dati

Centro Funzionale: weather data Centro Funzionale http://cf.regione.vda.it/richiesta_dati.php

ALC data E-PROFILE http://data.ceda.ac.uk/badc/eprofile/data/

Sun-sky radiometer data EuroSkyRad http://www.euroskyrad.net/index.html

Air quality data Regione Piemonte http://www.regione.piemonte.it/ambiente/aria/rilev/ariaday/ariaweb-new/index.php/it/home

Short summary
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.
Altmetrics
Final-revised paper
Preprint