Each particle in the air we breathe has a history. The chemical composition of those particles provides clues to the sources and the potential impacts of those particles on human health and the climate system. Join this lecture with Dr. Peter DeCarlo, Associate Professor at Johns Hopkins University in then Department of Environmental Health and Engineering in the Whiting School of Engineering, to explore particle composition in indoor and outdoor spaces to better understand what is in the air we breathe. To learn more, visit jhu.edu/hopkinsathome