In the AIRFlowS Lab, we investigate how matter — from plastics and pollen to dust and microbes — moves across environmental interfaces through processes of aerosolization, transport, transformation, and deposition. By combining numerical simulation, theory, laboratory experiments, field observation, and satellite data, we connect micro-scale interfacial physics to Earth-scale fluxes of particles and reactive species. Our research is highly interdisciplinary, integrating expertise from environmental engineering, atmospheric and Earth sciences, fluid dynamics, computational modeling, and aerosol physics and chemistry. The AIRFlowS Lab is led by Dr. Hosein Foroutan in the Department of Civil and Environmental Engineering at Virginia Tech.