Articles | Volume 21, issue 3
https://doi.org/10.5194/acp-21-1815-2021
https://doi.org/10.5194/acp-21-1815-2021
Research article
 | 
10 Feb 2021
Research article |  | 10 Feb 2021

PM2.5 surface concentrations in southern West African urban areas based on sun photometer and satellite observations

Jean-François Léon, Aristide Barthélémy Akpo, Mouhamadou Bedou, Julien Djossou, Marleine Bodjrenou, Véronique Yoboué, and Cathy Liousse

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We have investigated the aerosol optical depth (AOD) and its relation to PM2.5 surface concentrations in southern West Africa based on in situ observations (2015–2017 period) and MODIS satellite data (2003–2019). MODIS AODs are validated using a regional network of handheld and automatic sun photometers. Satellite-derived PM2.5 shows an increasing trend during the short dry period that is possibly linked to the increase in anthropogenic emission over this area.
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