Funds from this grant support an ongoing project led by Marina Vance, assistant professor of mechanical and environmental engineering at the University of Colorado, Boulder, and Delphine Farmer, associate professor of chemistry at Colorado State University, to build community and data infrastructure for researchers working in indoor chemistry. Over the course of the grant period, Vance and Farmer will develop a data sharing infrastructure for indoor chemistry studies, merge and synthesize data collected from the HOMEChem field experiment with additional chemical datasets, further analyze that data, plan and host a scientific meeting for researchers in the Chemistry of Indoor Environment program, and continue outreach and community building among indoor chemistry researchers through the IndoorChem website and social media properties.