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During December and January, dry northeasterly surface winds (the Harmattan)distribute dust over West Africa. Rate of deposition and some chemical andphysical characteristics of Harmattan dust were measured in Taï NationalPark in the southwest corner of Côte d'Ivoire during the 1990–1991 dryseason. The dust deposition was estimated by the classical water-filled basinmethod and by using canopy drip...