The Sahelian Dust Transect, is a network dedicated to the monitoring of the mineral dust in the Sahel. It was deployed in 2006 in the frame of the AMMA (African Monsoon Multidisciplinary Analysis) International Program. It is composed of 4 ground-based stations located on an East-West trajectory on the path of the Saharan and Sahel dust plumes during their transport toward the Atlantic Ocean : Banizoumbou (Niger), Cinzana (Mali), M'Bour and Bambey (Senegal). A similar station was recently deployed in the south of Tunisia (Médenine, Tunisia)