A Drone-Based Rotating Cascade Impactor for Aerosol Mixing State Research #Sciencefather
Introduction Atmospheric aerosols significantly influence climate, air quality, and human health, yet their vertical distribution and physicochemical properties remain underexplored. Traditional ground-based observations often fail to capture altitude-dependent variations in aerosol composition and mixing states. To address this gap, a novel drone-based aerosol sampling system integrated with a rotating cascade impactor has been developed. This innovation enables size-selective and altitude-resolved single-particle sampling, combined with advanced Raman-based spectroscopic analyses, providing new insights into particle transformations and aging processes across different atmospheric layers. Development of the Drone-Based Rotating Cascade Impactor System The newly engineered drone-mounted rotating cascade impactor features a series of rotating impaction stages designed for precise size-selective sampling of atmospheric particles. Its lightweight and portable design ensures oper...