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A sound scientific understanding of the factors affecting the environment is essential to guarantee the sustainable development of the world’s economic and societal activities.Many environmental issues,such as air quality and climate change are intimately linked to atmospheric chemistry and physics,therefore research in these areas is of tremendous importance.Both anthropogenic and biogenic emissions contribute greatly to the chemical composition of the atmosphere.Even though the atmosphere is a self-cleaning system through its photochemically-driven reactions,the hazardous direct impacts of primary and secondary pollutants on human health and ecosystems are observable and have been evidenced on different scales from local to global (e.g.ozone hole,climate change,air quality…).The chemical processing of the species present in the atmosphere is one of the most important players in driving the evolution of the atmosphere.