Articles | Volume 22, issue 6
https://doi.org/10.5194/acp-22-3789-2022
https://doi.org/10.5194/acp-22-3789-2022
Research article
 | 
22 Mar 2022
Research article |  | 22 Mar 2022

What caused a record high PM10 episode in northern Europe in October 2020?

Christine D. Groot Zwaaftink, Wenche Aas, Sabine Eckhardt, Nikolaos Evangeliou, Paul Hamer, Mona Johnsrud, Arve Kylling, Stephen M. Platt, Kerstin Stebel, Hilde Uggerud, and Karl Espen Yttri

Data sets

Introduction to the European Monitoring and Evaluation Programme (EMEP) and observed atmospheric composition change during 1972–2009 (http://ebas.nilu.no/) K. Tørseth, W. Aas, K. Breivik, A. M. Fjæraa, M. Fiebig, A. G. Hjellbrekke, C. Lund Myhre, S. Solberg, and K. E. Yttri https://doi.org/10.5194/acp-12-5447-2012

Download of air quality data EEA (European Environment Agency) https://discomap.eea.europa.eu/map/fme/AirQualityExport.htm

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Short summary
We investigate causes of a poor-air-quality episode in northern Europe in October 2020 during which EU health limits for air quality were vastly exceeded. Such episodes may trigger measures to improve air quality. Analysis based on satellite observations, transport simulations, and surface observations revealed two sources of pollution. Emissions of mineral dust in Central Asia and biomass burning in Ukraine arrived almost simultaneously in Norway, and transport continued into the Arctic.
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