Aerosol particles help clouds form by acting as cloud condensation nuclei (CCN), which are influenced by their chemical makeup. This study investigated how aerosol composition influences CCN at various heights using measurements from balloons and drones during atmospheric research campaigns. By analyzing air masses from sources such as marine areas, cities, and long-distance transport, researchers linked the chemical composition to CCN concentrations using two models. Results showed that urban air, rich in organic particles, boosted CCN levels, especially when accounting for surface tension effects. This research demonstrates how advanced tools can be used to study the interaction of aerosols with clouds under various conditions.