In the exhaust of the city – investigations of the emissions of a megacity

An increasing number of people are living in the growing cities of this world. This results in a rapid growth of the fraction of anthropogenic emissions of pollutants from such megacities. For a detailed investigation of the particulate and gaseous substances in the atmosphere in such a city and in its vicinity, extensive measurements were performed in the metropolitan area of Paris. The study of the transformation and aging processes of such species was done using modern instrumentation in a ground measurement station, on a research aircraft, and on a mobile laboratory for aerosol research.