Articles | Volume 19, issue 5
Atmos. Chem. Phys., 19, 3065–3095, 2019
https://doi.org/10.5194/acp-19-3065-2019
Atmos. Chem. Phys., 19, 3065–3095, 2019
https://doi.org/10.5194/acp-19-3065-2019

Research article 11 Mar 2019

Research article | 11 Mar 2019

Transport of Po Valley aerosol pollution to the northwestern Alps – Part 1: Phenomenology

Henri Diémoz et al.

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Short summary
We assess the impact of air masses transported from the Po basin on the particulate matter (PM) levels in the northwestern Alps using multi-sensor observations from ground and space, and models. In this part 1 of the study, we investigate the phenomenon through three selected case studies representative of different seasons. We show that advected aerosols remarkably degrade the air quality of the Alpine area (PM10 increasing up to >100 µg m−3) and we discuss the measurement–model discrepancies.
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