This lecture by Dr. Kalliopi Violaki explores the impact of desert dust on the environment, focusing on its role as a carrier of pollutants and nutrients. It covers topics such as the chemical composition of atmospheric particles, the transport of dust across different regions, the size distribution of dust aerosols, and the effects of dust on atmospheric chemistry and human health. The lecture also delves into the mineral composition of dust particles, their impact on climate, and their role in nutrient exchange with the biosphere.