In two separate studies, we reported on properties and impacts of aerosol emissions from two different sources: diesel engines and residential cookstoves. In the work published in Atmospheric Environment, we determined the volatility of primary organic aerosol from a modern-day, non-road diesel engine. In the work published in Aerosol Science and Technology, we measured the emissions and radiative impacts of sub-10 nm particles from a range of dirty-to-clean cookstoves.